| R | radius | | | | Details |
| R | range | | | | Details |
| R | rankine(temp.scale) | | | | Details |
| R | resistivity | | | | Details |
| r | roentgen | | | | Details |
| R | rows | | | | Details |
| R | test rotary test | | | | Details |
| R | russ. Bourdonrohr (ausgesch.) | | | | Details |
| R | Reputation | | | | Details |
| R | R Stillstand wegen Rohrbruch | | | | Details |
| R | Region | | | | Details |
| R | Rate | | | | Details |
| DRAD | Drainage Radii|| | drainage radii | Entwässerungsradien | rayons de drainage | Details |
| LRMC | Long Run Marginal Cost|| | Long Run Marginal Cost | Long Run Marginal Cost | Long Run coût marginal | Details |
| BR | Bruttoraten|| | gross rate | Bruttorate | taux brut | Details |
| ZR | Zielrate|| | target rate | Zielrate | taux cible | Details |
| RM | Reservoir Management|| | reservoir management | Reservoir-Management | la gestion des réservoirs | Details |
| RM | Ring Messer|| | ring diameter | Ringdurchmesser | diamètre de l'anneau | Details |
| rep | representative|| | representative | Vertreter | représentant | Details |
| Bleiabdruck | Impression Block|| | impression block | Eindruck Block | bloc d'impression | Details |
| RGL | Rohr- und Gerätelager|| | Pipe and equipment storage | Rohr- und Ausrüstung Lagerung | Tuyaux et équipements de stockage | Details |
| RM | Reservoir Management|| | reservoir management | Reservoir-Management | la gestion des réservoirs | Details |
| RP | RePerforation|| | RePerforation | RePerforation | RePerforation | Details |
| GRI | Gross Rate Increase|| | Gross Rate Increase | Bruttoratenerhöhung | Taux brut Augmentation | Details |
| GRD | Gross Rate Decrease|| | Gross Rate Decrease | Bruttorate verkleinern | Taux brut Diminution | Details |
| DR | Druck|| | pressure | Druck | pression | Details |
| Drrep | Druck Representativ|| | pressure Representative | Druck Vertreter | Représentant de pression | Details |
| Prc | Recovery Chance|| | Recovery chance | Recovery-Chance | chances de récupération | Details |
| Pr | Chance of Realization|| | Chance of Realization | Realisierungschancen | Risques de Réalisation | Details |
| CSRA | Cost & Schedule Risk Analysis|| | Cost & Schedule Risk Analysis | Cost & Schedule Risk Analysis | Coût et calendrier Analyse des risques | Details |
| recov | Recoverable|| | Recoverable | Behebbarer | récupérable | Details |
| Sur | Surface|| | Surface | Oberfläche | Surface | Details |
| TR | Tubing Reel|| | Tubing Reel | Schlauchrolle | Tubing Reel | Details |
| FSRU | Floating Storage and Regasification Unit|| | Floating Storage and Regasification Unit | Floating Storage und Regasifizierung Einheit | Flottant de stockage et de l'unité de regazéification | Details |
| SPRs | strategic petroleum reserves|| | strategic petroleum reserves | strategische Erdölreserven | réserves stratégiques de pétrole | Details |
| WRM | Well and Reservoir Management|| | Well and Reservoir Management | Gut und Reservoir-Management | Eh bien, et la gestion des réservoirs | Details |
| TRI | Target Rate Increase|| | Target Rate Increase | Target Rate erhöhen | Taux cible Augmentation | Details |
| TRD | Target Rate Deccrease|| | Target Rate Deccrease | Target Rate Deccrease | Target Rate Deccrease | Details |
| $/yr | U.S. dollars per year | | | | Details |
| A/CLR | air cooler | | | | Details |
| A/R | accounts receivable | | | | Details |
| AAIOR | annualized average incremental oil rate | | | | Details |
| AAR | After Action Review (What went right/wrong, dif next time) | | | | Details |
| AAR | after action review | | | | Details |
| AAR | Association of American Railroads | | | | Details |
| AARA | Amsterdam-Antwerpen-Rotterdam Area | | | | Details |
| abrsi | jet abrasive jet | | | | Details |
| ABSORB | Alaska Beaufort Seat Oil Spill Response Body | | | | Details |
| AC PAR 16 | Acoustic Parameter-16mm Scope | | | | Details |
| AC PAR D | Acoustic Parameter-Depth | | | | Details |
| AC PAR L | Acoustic Parameter-Logging | | | | Details |
| AC/CAL GR | Acoustilog Caliper Gamma Ray | | | | Details |
| AC/CAL/GR | BHC Acoustilog Caliper Gamma Ray | | | | Details |
| ACCR | Accelerometer Corrections Preprocessing (CIBLSM PREP) | | | | Details |
| acfr | acid fracture treatment | | | | Details |
| ACLR | air cooler | | | | Details |
| acrg | acreage | | | | Details |
| ACRONYMS | AND ABBREVIATIONSAC–4 PRUDENT DEVELOPMENT: Realizing the Potential of North America’s Abundant Natural Gas and Oil Resources | | | | Details |
| ACSR | aluminum conductor steel reinforced | | | | Details |
| ADR | Appropriate Dispute Resolution (see comment) | | | | Details |
| ADROC | Advanced Rock Properties Report | | | | Details |
| AECRB | Alberta Energy Conservation Resources Board | | | | Details |
| AER | Alberta Energy Regulator | | | | Details |
| AER | aeration, aerator | | | | Details |
| AF/CLR | after cooler | | | | Details |
| AFPR | Annual Field Perf Review | | | | Details |
| AFPR | Acquisition Foot Print Removal | | | | Details |
| AFRA | average freight rate assessment | | | | Details |
| AGGR | aggregate | | | | Details |
| AGORA | Adaptative Ground Roll Attenuation (from CGG) | | | | Details |
| AGR | Azimuthal Gamma Ray | | | | Details |
| AGRU | acid gas removal unit | | | | Details |
| AHERA | Asbestos Hazard Emergency Response Act of 1986 (Title II of TSCA) | | | | Details |
| Air | Standard density of dry air, free of CO2 at 0oC is 1.292 g/L | | | | Details |
| AIR | average injection rate | | | | Details |
| AIR | COND air conditioning | | | | Details |
| AIRG | Airgun | | | | Details |
| AIRRE | Airgun Report | | | | Details |
| ALARA | as low as reasonably achievable | | | | Details |
| ALARP | As Low As Reasonably Practicable | | | | Details |
| ALARP | As Low As Reasonably Practical | | | | Details |
| ALBPETROL | Albanian Petroleum Corporation Albania | | | | Details |
| ALC-GR | Acoustilog Caliper-Gamma Ray | | | | Details |
| ALC-GRN | Acoustilog Caliper-Gamma Ray-Neutron | | | | Details |
| ALR | Acoustic Log Report | | | | Details |
| ALR | Agricultural Land Reserve (see comment) | | | | Details |
| amor | amorphous | | | | Details |
| amort | amortization | | | | Details |
| amp-hr | ampere hour | | | | Details |
| AMR | addition or modification reque | | | | Details |
| amt/yr | amount to be defined per year | | | | Details |
| ANARE | Analysis Report | | | | Details |
| ANR | amount not reported | | | | Details |
| antr | antransportiert | | | | Details |
| ANWR | Arctic National Wildlife Refuge | | | | Details |
| AOR | authorized over-run | | | | Details |
| AORV | Annulus Operated Reversing Valve (Expro DST tool) | | | | Details |
| Apicorp | Arab Petroleum Investment Corporation | | | | Details |
| APPAR | apparatus | | | | Details |
| APPRE | Appraisal Report | | | | Details |
| approx | approximate | | | | Details |
| approx | approximately | | | | Details |
| approx | approximate(ly) | | | | Details |
| APR | Annual Percentage Rate | | | | Details |
| APR | annular pressure relief valve Used in reverse circulating to prevent pipe collapse | | | | Details |
| APR | trademarked name for an annular pressure response valve – for a DST string | | | | Details |
| apr | apparent(ly) | | | | Details |
| APR | average penetration rate | | | | Details |
| APRA | American Petroleum Refiners Association | | | | Details |
| APRC | Arab Petroleum Research Center France | | | | Details |
| APRC | Amerya Petroleum Refining Company Egypt | | | | Details |
| APRV | annular pressure relief valve | | | | Details |
| AQCR | air quality control region | | | | Details |
| AR | Attraction & Recruitment (HR Dept) | | | | Details |
| AR | Automatic Release | | | | Details |
| AR | Annual Reviews or Acceptance Review | | | | Details |
| AR | Action Required | | | | Details |
| AR | Area Representative, Application Record | | | | Details |
| AR | Administrative Requirement | | | | Details |
| AR | ARGENTINA | | | | Details |
| AR | Arkansas | | | | Details |
| AR | acid residue | | | | Details |
| Ara | Arapahoe | | | | Details |
| ARACL | Array Acoustic Log | | | | Details |
| ARAG | Amsterdam-Rotterdam-Antwerp-Gent range | | | | Details |
| arag | aragonite | | | | Details |
| Aramco | Arabian American Oil Company | | | | Details |
| ARAMCO | (see Saudi Aramco) (formerly Arabian American Oil Company) Saudi Arabia | | | | Details |
| ARATS | Automated Reserves Audit Trail System | | | | Details |
| Arb | Arbuckle | | | | Details |
| Arbift | Arab Bank for Investment and Foreign Trade | | | | Details |
| ARC | Array Restistivity Compensated tool (LWD) | | | | Details |
| ARC | Array Compensated Resistivity | | | | Details |
| arch | architectural | | | | Details |
| Archeo | Archeozoic | | | | Details |
| Arco | Atlantic Richfield Company | | | | Details |
| ARCO | Atlantic Richfield Co. | | | | Details |
| ARE | UNITED ARAB EMIRATES | | | | Details |
| aren | arenaceous | | | | Details |
| ARESV | Analysis of Reservoir | | | | Details |
| ARG | ARGENTINA | | | | Details |
| arg | argillaceous | | | | Details |
| arg | argillite | | | | Details |
| ARI | Azimuthal Resistivity Image | | | | Details |
| ARI | Azimuthal Resistivity Imager | | | | Details |
| Arig | Arab Insurance Group | | | | Details |
| ark | arkosic | | | | Details |
| ark | arkose(ic) | | | | Details |
| Arka | Arkadelphia | | | | Details |
| ARKLA | Arkansas Louisiana Gas Co. | | | | Details |
| ARM | Advanced RISC Machines | | | | Details |
| ARM | ARMENIA | | | | Details |
| arm | armature | | | | Details |
| ARMP | Approved Resource Management Plan | | | | Details |
| arnd | around | | | | Details |
| ARO | after receipt of order(purchasing term) | | | | Details |
| ARO-at | rate of | | | | Details |
| arom | aromatics | | | | Details |
| ARP | Alberta Recommended Practice | | | | Details |
| ARP | Asset Reference Plan | | | | Details |
| ARPEL | Assistencia Reciproca Petrolera Empresarial Latinoamerica Regional Assn. of Oil & Natural Gas Cos. in Latin America and the Caribbean)(—) | | | | Details |
| ARPR | Annual Report of Petroleum Resources (Reserves) | | | | Details |
| ARPR | Annual Reservoir Performance Review | | | | Details |
| ARPR | Annual Reservoir Performance Report | | | | Details |
| arq | argillaceous | | | | Details |
| ARR | arrange(ed)(ing)(ment) | | | | Details |
| ARRC | Array Acoustic Report | | | | Details |
| ARSR | Alagal, Rudist, Skeletal, Rudstone | | | | Details |
| ART | Acid Response Test | | | | Details |
| ART | actuator running tool | | | | Details |
| ARTS | Annulus Reference Trap System (Expro DST tool, like PORT of SLB) | | | | Details |
| asbr | absorber | | | | Details |
| ASHRAE | American Society of Heating, Refrigerating and Air-Conditioning Engineers | | | | Details |
| ASHRAE | American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc. | | | | Details |
| ASRL | Alberta Sulfur Research Ltd | | | | Details |
| ASRY | Arab Shipbuilding and Repair Yard | | | | Details |
| ASRY | Arab Shipbuilding & Repair Yard Co. OAPEC | | | | Details |
| ASSMR | American Society for Surface Mining and Reclamation | | | | Details |
| ATR | Action Track Register | | | | Details |
| ATSDR | Agency for Tonic Substances and Disease Registry | | | | Details |
| AWGRS | Alaska well’s group reporting system | | | | Details |
| AWR | Array Wave Resistivity (PathFinder) | | | | Details |
| AXORC | Assuit Oil Refining Company Egypt | | | | Details |
| aztrop | Azeotrophic | | | | Details |
| B.Riv | Black River | | | | Details |
| B/dry | bailed dry | | | | Details |
| B/hr | barrels per hour | | | | Details |
| BADR | Banque de l’Agriculture et du Développement Rural | | | | Details |
| bar | barite(ic) | | | | Details |
| Bar | Barlow Lime | | | | Details |
| bar | barometer, barometric | | | | Details |
| BAR | barrels acid residue | | | | Details |
| Barge | marine vessel without its own propulsion | | | | Details |
| Bark | Crk Barker Creek | | | | Details |
| BARS | Borehole Acoustic Reflection Survey | | | | Details |
| Bart | Bartlesville | | | | Details |
| bbl/yr | barrels per year | | | | Details |
| Bear | Riv Bear River | | | | Details |
| BERL | Boral Energy Resources Ltd. Australia | | | | Details |
| berm | berm, sloped wall to keep out flooding | | | | Details |
| BGR | BULGARIA | | | | Details |
| BHC ALC GR | BHC Acoustilog Caliper Gamma Ray | | | | Details |
| BHC ALC GRN | BHC Acoustilog Caliper G/R Neutron | | | | Details |
| BHC ALGRNTC | BHC Acoustilog Caliper G/R Neutron (Thru Casing) | | | | Details |
| BHC-GR | BHC Sonic-Gamma Ray Logging | | | | Details |
| bhp-hr | brake horsepower-hour | | | | Details |
| BHPRP | Borehole Pressure Report | | | | Details |
| BHR | BAHRAIN | | | | Details |
| BHSRE | Bottom Hole Sampling Report | | | | Details |
| BIOR | Biostratigraphic Range Log | | | | Details |
| BIORE | Biostratigraphy Study Report | | | | Details |
| BITOR | Bitumenes Orinoco S.A. Venezuela | | | | Details |
| bkr | breaker | | | | Details |
| bldg-drk | building derrick | | | | Details |
| bldg-rds | building roads | | | | Details |
| bldrs | boulders | | | | Details |
| blk-lnr | blank liner | | | | Details |
| BLOR | barrels load oil recovered | | | | Details |
| BLOTBR | barrels load oil to be recovered | | | | Details |
| BLOYTR | barrels load oil yet to recover | | | | Details |
| BLR | BELARUS | | | | Details |
| blr | bailer | | | | Details |
| BLR | boiler | | | | Details |
| BLTR | barrels of load to recover | | | | Details |
| BLWR | blower | | | | Details |
| BLWTR | barrels load water to recover | | | | Details |
| bmpr | bumper | | | | Details |
| bndry | boundary | | | | Details |
| BOEMRE | Bureau of Ocean Energy Management, Regulation and Enforcement | | | | Details |
| BOEMRE | Bureau of Ocean Energy Management, Regulation and Enforcement, DOI | | | | Details |
| Bol.flor. | Bolivina floridana | | | | Details |
| Borb | prefix denoting a number in billions | | | | Details |
| BORCO | Bahamas Oil Refining Co. Venezuela | | | | Details |
| BOREH | Borehole Seismic Analysis | | | | Details |
| Borouge | Abu Dhabi Polymers Company Limited | | | | Details |
| BP/CLR | bypass cooler | | | | Details |
| BPR | BOP Pipe Rams | | | | Details |
| Br | Breadth | | | | Details |
| BR | Budget Requisition | | | | Details |
| BR | BRAZIL | | | | Details |
| BR | Petrobras | | | | Details |
| BR | building rig | | | | Details |
| BR | building road | | | | Details |
| br | brown | | | | Details |
| BR | Petrobras Internacional S.A. Brazil | | | | Details |
| Br.ld. | Break load | | | | Details |
| BRA | BRAZIL | | | | Details |
| brach | brachiopod | | | | Details |
| brack | brackish | | | | Details |
| BRASPETRO | Petrobras Internacional S.A. Brazil | | | | Details |
| BRB | BARBADOS | | | | Details |
| BRC | brace(ing)(ed) | | | | Details |
| brec | breccia | | | | Details |
| BRFL/V | butterfly valve | | | | Details |
| brg | bearing | | | | Details |
| BRGDS | Best ReGarDS | | | | Details |
| BRGG | Bureau de Recherches Geologiques et Geophysique France | | | | Details |
| BRGM | Bureau de Recherches Geologiques et Minieres France | | | | Details |
| BRGN | Bureau de Researches Géologiques et Minières | | | | Details |
| bri | bright | | | | Details |
| Brid | bridger | | | | Details |
| brit | brittle | | | | Details |
| brk | break(broke) | | | | Details |
| brkn | broken | | | | Details |
| brkn-sd | broken sand | | | | Details |
| BRKR | breaker | | | | Details |
| BRKS | brakes | | | | Details |
| brksh | brackish(water) | | | | Details |
| brkt(s) | brackets(s) | | | | Details |
| BRN | BRUNEI DARUSSALAM | | | | Details |
| brn | brown | | | | Details |
| Brn Li | brown lime | | | | Details |
| brnsh | brownish | | | | Details |
| brn-sh | brown shale | | | | Details |
| BROB | Bunkers Remaining On Board | | | | Details |
| Brom | bromide | | | | Details |
| BRPLG | Bridge Plug Log | | | | Details |
| BRT | Below Rotary Table (used as a datum for depths in a well) | | | | Details |
| BRT | Below Rotary Table | | | | Details |
| Brt | Gross tonnage | | | | Details |
| brtl | brittle | | | | Details |
| bry | bryozoa | | | | Details |
| BSR | Bottom Simulating Reflector (seismic) | | | | Details |
| BSR | blind shear rams (blowout preventer) | | | | Details |
| BSR | bending strength ratio | | | | Details |
| BSTR | booster | | | | Details |
| btry | battery | | | | Details |
| Buckr | buckrange | | | | Details |
| bunr | burner | | | | Details |
| BUR | Build Up Rate (drilling) | | | | Details |
| BUR | Build-Up rate | | | | Details |
| Burg | Burgess | | | | Details |
| C&R | circulate and reciprocate | | | | Details |
| CaBr2 | calcium bromide | | | | Details |
| CAGR | compound annual growth rate | | | | Details |
| CAIR | Comprehensive Assessment Information Rule (under TSCA) | | | | Details |
| CALIBR | calibrate, calibration | | | | Details |
| CAR | Company Appointed Representative | | | | Details |
| CAR | Corrective Action Request | | | | Details |
| CAR | Corporate Activity Report | | | | Details |
| Car | Carlile | | | | Details |
| carb | carbonaceous | | | | Details |
| carb | test carbontetrachloride | | | | Details |
| CARBESA | Carbon Black Espanola S.A. Spain | | | | Details |
| Carm | Carmel | | | | Details |
| CART | Cam Actuated Running Tool (Housing Running Tool) | | | | Details |
| CART | Cap Replacement Tool | | | | Details |
| CATR | Clean Air Transportation Rule | | | | Details |
| CBL GRN | Acoustic Cement Bond G/R Neutron | | | | Details |
| CBL/GR | Acoustic Cement Bond Gamma Ray | | | | Details |
| CBL/GR/NEU | Acoustic Cement Bond G/R Neutron | | | | Details |
| CBL-GR | Cement Bond-Gamma Ray Logging | | | | Details |
| CBL-GRN | Cement Bond-Gamma Ray Neutron | | | | Details |
| CCPR | casing collar perforating record | | | | Details |
| CCR | Change Control Request | | | | Details |
| CCR | Continuous Catalytic Reformer | | | | Details |
| CCR | Central Control Room | | | | Details |
| CCR | Conradson carbon residue | | | | Details |
| CCR | critical compression ratio | | | | Details |
| CCRT | Coct Control Reporting Tool (SAP Report) | | | | Details |
| CDCL GR | Compensated Densilog Caliper Gamma Ray | | | | Details |
| CDL/CAL/GR | Compensated Densilog Caliper | | | | Details |
| CDL/CAL/GR | Densilog Caliber Gamma Ray Log | | | | Details |
| CDLC GRN | Compensated Densilog Caliper G/R Neutron | | | | Details |
| CDR | Compensated Dual Resistivity | | | | Details |
| CDR | Council for Development and Reconstruction | | | | Details |
| Cdr | Mtn Cedar Mountain | | | | Details |
| CDR | Continuous Directional Survey | | | | Details |
| CDRCL | Compensated Dual Resistivity Cal. Log | | | | Details |
| CDRT | Completion Design Review Team | | | | Details |
| cdsr | condenser | | | | Details |
| centr | centrifugal | | | | Details |
| CERA | Cambridge Energy Research Associates | | | | Details |
| CERCLA | a US Law – Comprehensive Environmental Response, Compensation and Liability Act of 1980 | | | | Details |
| CERCLA | Comprehensive Environmental Response, Compensation, and Liability Act (The Superfund Law) | | | | Details |
| CERE | Cement Remedial Log | | | | Details |
| CERHYD | Centre de Recherche Pour La Valorisation des Hydrocarbures & Derives Algeria | | | | Details |
| CERT | certified | | | | Details |
| Cert.ex. | Ceratobulimina eximia | | | | Details |
| CFR | Cost and FReight | | | | Details |
| CFR | critical flow rate | | | | Details |
| CFR | Code of Federal Regulations | | | | Details |
| CFR | cement friction reducer | | | | Details |
| CFR | cement friction retarder | | | | Details |
| CFR | Companie Francaise de Raffinage (sub. of Total) France | | | | Details |
| CFRC | Coordinating Fuel Research Committee | | | | Details |
| CgASR | Coated-Grain, Algal, Skeletal Rudstone-Floatstone | | | | Details |
| CGR | Condensate gas ratio | | | | Details |
| CGR | Computed Gamma Ray | | | | Details |
| C-gr | coarse grained | | | | Details |
| CGRI | Canadian Gas Research Institute | | | | Details |
| CHAR | characteristics | | | | Details |
| Char | Charles | | | | Details |
| Cher | Cherokee | | | | Details |
| Chert | a hard, silicate sedimentary rock Similar to flint, but with less ordered structure A cryptocrystalline form of quartz | | | | Details |
| chert | chert | | | | Details |
| CHFR | Cased Hole Formation Resistivity | | | | Details |
| CHFR | Cased Hole Formation Resisitivity | | | | Details |
| CHFRTM | cased hole formation resistivity tool | | | | Details |
| Chim-R | Chimney Rock | | | | Details |
| CHKSR | Checkshot Survey Report | | | | Details |
| CHL GR | Chlorinlog-Gamma Ray | | | | Details |
| CHL GR | Chlorinlog-Gamma Ray | | | | Details |
| CHLR | chlorinator | | | | Details |
| CHMBR | chamber | | | | Details |
| CHR | Surgutneftegas Russia | | | | Details |
| chrg | charge(ed)(ing) | | | | Details |
| chrm | chairman | | | | Details |
| CHROM | Chromatolog | | | | Details |
| chromat | chromatograph | | | | Details |
| chrome | chromium | | | | Details |
| CHRT | casing hanger running tool | | | | Details |
| CIR | Circulate | | | | Details |
| cir | circle | | | | Details |
| cir | circuit | | | | Details |
| cir | circular | | | | Details |
| cir | mils circular mills | | | | Details |
| CIRC | circulate | | | | Details |
| circ | circulate, circulation, circulating | | | | Details |
| circ | circulate, circulating, circulation | | | | Details |
| CIRES | Companhia Industrial de Resinas Sinteticas Portugal | | | | Details |
| CIRP | Schlumberger's Completion Insertion and Retrieval under Pressure, (snap lock guns) | | | | Details |
| CIRR | Commercial Interest Reference Rate | | | | Details |
| Clarks | Clarksville | | | | Details |
| CLFR | clarifier | | | | Details |
| CLG/TWR | cooling tower | | | | Details |
| clr | clear | | | | Details |
| clr | clear, clearance | | | | Details |
| CLR | cooler | | | | Details |
| CLR/TWR | cooling tower | | | | Details |
| CLRC | Career Ladder Review Committee | | | | Details |
| clrg | clearing | | | | Details |
| CLRP | Color Plot Continuous | | | | Details |
| CLTR | collector | | | | Details |
| CMPARTR | comparator | | | | Details |
| CMR | Combinable Magnetic Resonance (Schlumberger NMR type logging tool) | | | | Details |
| CMR | CMR Log | | | | Details |
| CMR | Combinable Magnetic Resonance | | | | Details |
| CMR | CAMEROON | | | | Details |
| CNGR | Compensated Neutron Gamma Ray Log | | | | Details |
| CNR | Conditioning Run | | | | Details |
| CNR | corner | | | | Details |
| cntr | center(d) | | | | Details |
| cntr | container | | | | Details |
| cntr | controller | | | | Details |
| cnvr | conveyor | | | | Details |
| colr | collar | | | | Details |
| Com Den-GR | Compensated Density Gamma Ray | | | | Details |
| commr | commissioner | | | | Details |
| COMPR | Completion Program Report | | | | Details |
| compr | compressor | | | | Details |
| compr | st compressor station | | | | Details |
| COMPTR | computer | | | | Details |
| COMRE | Completion Record Log | | | | Details |
| Con Dr. | Continuous Drift | | | | Details |
| CONDR | Continuous Directional Log | | | | Details |
| condr | conductor ( csq) | | | | Details |
| condr | conductor(pipe) | | | | Details |
| Contr | contractor | | | | Details |
| contr | resp contractor responsibility | | | | Details |
| contrib | contribution | | | | Details |
| coord | coordinates | | | | Details |
| coord | coordinate | | | | Details |
| COPAREX | Companie de Participations, de Recherches et d’Exploitations Petrolieres France | | | | Details |
| COR | Coring Run | | | | Details |
| cor | corner | | | | Details |
| COR | Carbon Dioxide Redrill | | | | Details |
| Cor Det | Electro-Magnetic Corrosion Detector | | | | Details |
| CORAN | Core Analysis Report | | | | Details |
| CORC | Cairo Oil Refining Company Egypt | | | | Details |
| CORCO | Commonwealth Oil Refining Co., Inc. | | | | Details |
| CORE | Core Report | | | | Details |
| CORG | Corgun Log | | | | Details |
| CORIB | Coriband Log | | | | Details |
| CORL | Correlation | | | | Details |
| CORLG | Correlation Log | | | | Details |
| COROR | Core Orientation Report | | | | Details |
| Corp | corporation | | | | Details |
| corr | corrected, correction | | | | Details |
| corr | correct(ed)(ion) | | | | Details |
| corr | corrosion | | | | Details |
| corr | corrugated | | | | Details |
| correl | correlation, correlated | | | | Details |
| correl | correlation | | | | Details |
| corres | correspondence | | | | Details |
| CORS | Canadian Operational Research Society | | | | Details |
| CPIRE | CPI Report | | | | Details |
| CPR | Cardio Pulmonary Resuscitation | | | | Details |
| CPR | Choke Performance Relationship | | | | Details |
| CPR | Cooper River Meridian(Alaska) | | | | Details |
| CPRA | Concurrent Production & Rig Activities (SIMOPS) | | | | Details |
| Cr | Chrome | | | | Details |
| CR | Casing Run | | | | Details |
| CR | Current Rate | | | | Details |
| Cr | Crane | | | | Details |
| CR | Cored | | | | Details |
| CR | COMOROS | | | | Details |
| CR | CORAL SEA ISLANDS | | | | Details |
| CR | COMOROS | | | | Details |
| CR | COSTA RICA | | | | Details |
| Cr | chrome 13Cr is 13% chrome | | | | Details |
| Cr | chromium | | | | Details |
| CR | cold rolled | | | | Details |
| CR | compression ratio | | | | Details |
| CR | Cow Run | | | | Details |
| CR | Con carbon residue(Conradson) | | | | Details |
| cr | moly chrome molybdenum | | | | Details |
| Cr+6 | hexavalent chromium | | | | Details |
| CRA | Corrosion Resistant Alloy (material) | | | | Details |
| CRA | Change Rams | | | | Details |
| CRA | Corrosive Resistive Alloy | | | | Details |
| CRA | corrosion resistant alloy | | | | Details |
| CRA | cased reservoir analysis | | | | Details |
| CRA | chemically retarded acid | | | | Details |
| CRA | Complex Reservoir Analysis | | | | Details |
| CRBD | Coriband-Kerogen Analysis | | | | Details |
| crbd | crossbedded | | | | Details |
| CRC | Coordinating Research Council, Inc. | | | | Details |
| CRC | Czech Refinery Company Czech Rep. | | | | Details |
| CRCMF | circumference | | | | Details |
| Crd | cored | | | | Details |
| CRDL | cradle(s) | | | | Details |
| CRE | Comision Reguladora de Energia Mexico | | | | Details |
| cren | crenulated | | | | Details |
| CRET | Cement Retainer Setting Log | | | | Details |
| Cret | Cretaceous | | | | Details |
| CRET | Cement Retainer | | | | Details |
| CRF | Cost Recovery Factor | | | | Details |
| Crg | coring | | | | Details |
| CRI | COSTA RICA | | | | Details |
| Crin | crinoid(al) | | | | Details |
| Cris | Christellaria | | | | Details |
| crit | critical | | | | Details |
| crk | creek | | | | Details |
| crkg | cracking | | | | Details |
| Crkr | cracker | | | | Details |
| CRL | Cost Recovery Limit | | | | Details |
| CR-MSN | Gamma Ray – Multi-Spaced Neutron Log | | | | Details |
| CRN | crane | | | | Details |
| crn | blk crown block | | | | Details |
| crnk | crinkled | | | | Details |
| CROB | Cargo Remaining OnBoard | | | | Details |
| Crom | Cromwell | | | | Details |
| CRP | control riser platform | | | | Details |
| CRP | common/central reference point (subsea survey) | | | | Details |
| CRP | Control-cum-Riser Platform | | | | Details |
| CRP | Bureau de Recherche de Petrole France | | | | Details |
| CRR | Companie Rhenane de Raffinage France | | | | Details |
| crs | coarse(ly) | | | | Details |
| CRS | cold-rolled steel | | | | Details |
| CRS | cross | | | | Details |
| crs-xln | coarse crystalline | | | | Details |
| CRT | Casing Running Tools | | | | Details |
| CRT | Clamp Replacement tool | | | | Details |
| CRT | cathode ray tube | | | | Details |
| CRU | catalytic reforming unit | | | | Details |
| CRV | curve | | | | Details |
| crypto-xln | cryptocrystalline | | | | Details |
| cryst | crystalline | | | | Details |
| CS - Filter | Con-Slot Filter | | | | Details |
| CSR | Corporate Social Responsibility | | | | Details |
| CSR | Client Satisfaction Report | | | | Details |
| CSTRE | CST Report | | | | Details |
| CTR | Cost Time Resource | | | | Details |
| CTR | Cost Time Resource Sheet | | | | Details |
| CTR | Cost, Time, Resource sheet | | | | Details |
| CTR | controlled tension release tool A release tool for downhole | | | | Details |
| ctr | center | | | | Details |
| CTRAC | Cement Tracer Log | | | | Details |
| Cur | Curtis | | | | Details |
| Cut Oil St Mrl | cutting oil straight mineral | | | | Details |
| cuvar | clean up on various choke sizes | | | | Details |
| CVR | cover | | | | Details |
| CVTR | convert(er)(ed) | | | | Details |
| CWOR | Completion Work Over Riser | | | | Details |
| CWOR | completion and workover riser | | | | Details |
| CWR | Compensated Wave Resistivity tool (PathFinder) | | | | Details |
| CWR | cooling water return | | | | Details |
| CWRGM | Compensated Wave Resistivity Gamma MultiLink | | | | Details |
| CXR | CHRISTMAS ISLAND | | | | Details |
| CYPRO | Cyberproducts Log | | | | Details |
| CYRFT | Repeat Formation Tester Quicklook | | | | Details |
| DAR | Digital Acoustic Tool | | | | Details |
| Dar | Darwin | | | | Details |
| DAR | discovery allowable requested darcy | | | | Details |
| DARC | Permeability Estimation | | | | Details |
| DARCI | Darci Log | | | | Details |
| DART | Data Acquisition, Reporting, and Transmission Tool | | | | Details |
| DART | Days Away/Restricted or Transfer Rate (see comment) | | | | Details |
| DCR | Daily Cost Report | | | | Details |
| DCTR | detector | | | | Details |
| DDR | Daily Drilling Report | | | | Details |
| DDR | Double Data Rate | | | | Details |
| deaer | deaerator | | | | Details |
| debutzr | debutanizer | | | | Details |
| decr | decrease | | | | Details |
| decr | decrease(ed)(ing) | | | | Details |
| deethzr | deethanizer | | | | Details |
| Del R | Del Rio | | | | Details |
| demur | demurrage | | | | Details |
| DENR | Radioactive fluid density tool (in PLT tool) | | | | Details |
| Depr | depreciation | | | | Details |
| deprop | depropanizer | | | | Details |
| DERPROSA | Derivados del Propileno S.A. Spain | | | | Details |
| desorb | desorbent | | | | Details |
| deterg | detergent | | | | Details |
| detr | detrital | | | | Details |
| DFR | Drilling Factual Report | | | | Details |
| DG-Packer | Double Grip Packer | | | | Details |
| DGR | Dual Gamma Ray | | | | Details |
| DGR | Daily Geological Report | | | | Details |
| DGR | Dangerous Goods Regulations | | | | Details |
| DGR | Digital Gamma Ray Log | | | | Details |
| Dgt Tp Rec | Digital Tape Recording | | | | Details |
| DHR | dry hole reentered | | | | Details |
| dichlor | dichloride | | | | Details |
| DIEGR | Dielectric Gamma Ray Log | | | | Details |
| DIFL/GR | Dual Induction Focused Log Gamma Ray | | | | Details |
| DIGAQRO | Distribuidora de Gas de Queretaro S.A. Mexico | | | | Details |
| Dip Rec | Dip Log Digital Log Dgt | | | | Details |
| DIPAR | Dipole Acoustic Report | | | | Details |
| DIPRE | Dipmeter Report | | | | Details |
| DIPRM | Dip Removal Log | | | | Details |
| DIR | Directional | | | | Details |
| DIR | Directive | | | | Details |
| dir | direct(tion)(tor) | | | | Details |
| dir | drlg directional drilling | | | | Details |
| dir | sur directional survey | | | | Details |
| DIR | Directional Survey | | | | Details |
| DIRS | Directional Survey Log | | | | Details |
| DIRS | Directional survey | | | | Details |
| DIRSU | Directional Survey Report | | | | Details |
| distr | distribute(ed)(ing)(ion) | | | | Details |
| DKBR | Dresdner Kleinwort Benson Research | | | | Details |
| dlr | dealer | | | | Details |
| DMOR | Daily Moving Report | | | | Details |
| dmpr | damper | | | | Details |
| DMR | Daily Moving Report | | | | Details |
| DMUR | drilling, milling and under-reaming | | | | Details |
| DNR | Department of Natural Resources | | | | Details |
| DOCREQ | Document request | | | | Details |
| doc-tr | doctor-treatment | | | | Details |
| DOR | Daily Operations Report | | | | Details |
| Dorn | H Dornick Hills | | | | Details |
| DOWRE | Downhole Report | | | | Details |
| DPR | Daily Production Report | | | | Details |
| DPRES | Dual Propagation Resistivity Log | | | | Details |
| DPRT | Deep Propagation Resistivity | | | | Details |
| DR | Dummy Run Log | | | | Details |
| DR | Drilling Report | | | | Details |
| DR | Düsenrohr | | | | Details |
| DR | Dimention Ratio | | | | Details |
| DR | Decision reviewers | | | | Details |
| DR | Disaster Recovery | | | | Details |
| DR | DOMINICAN REPUBLIC | | | | Details |
| DR | Devel opment Redrill | | | | Details |
| DR | Directional Survey | | | | Details |
| DR | Drift | | | | Details |
| DR | development redrill(sidetrack) | | | | Details |
| dr | drain | | | | Details |
| dr | drive | | | | Details |
| dr | drum | | | | Details |
| dr | druse | | | | Details |
| Dr Crk | Dry Creek | | | | Details |
| DRAM | Dynamic Random Access Memory | | | | Details |
| DRAPR | Delaware River Area Petroleum Refineries | | | | Details |
| DRB | Decision Review Board | | | | Details |
| DRB | Dual Receiver Bond Log | | | | Details |
| DRBA | Delaware River Basin Authority | | | | Details |
| DrehT | Drehtisch | | | | Details |
| DrehT" | Drehtisch | | | | Details |
| dresser | Mechanical coupling used to join joints or lengths or pipe rather than threading or welding | | | | Details |
| DRGL | drilling | | | | Details |
| DRI | Drill (kick, H2S) | | | | Details |
| DRI | Drift Log | | | | Details |
| DRI | Dual Resistivity Induction Log | | | | Details |
| drk | derrick | | | | Details |
| DRL | Drilling Run | | | | Details |
| DRL | double random lengths | | | | Details |
| drl | drill | | | | Details |
| DRLCT | Drilling Chart | | | | Details |
| drld | drilled | | | | Details |
| drlg | drilling | | | | Details |
| DRLOG | Drilling Log | | | | Details |
| DRLPR | Drilling Proposal/Prog. Report | | | | Details |
| drlr | driller | | | | Details |
| DRM | Digital Rights Management | | | | Details |
| DRM | drum | | | | Details |
| drng | drainage | | | | Details |
| DRODB | drilling, recompletion and repair data base | | | | Details |
| dropd | dropped | | | | Details |
| DRPG | Drilling Program Report | | | | Details |
| DRPRS | Drilling Pressure | | | | Details |
| DRREP | Drilling Report | | | | Details |
| DRS | Digital Recording Sampler (SLB) | | | | Details |
| drsy | drusy | | | | Details |
| DRV(R) | drive(ing)(er) | | | | Details |
| DRW | Drawworks | | | | Details |
| DRY | Dry | | | | Details |
| dry | drier, drying | | | | Details |
| DRYRE | Drying Report | | | | Details |
| DSFR | Developed Scope For Recovery | | | | Details |
| DST(Strd) | drillstem test with straddle packers | | | | Details |
| DSTR | Drill Stem Test Report | | | | Details |
| DSTRE | Drill Stem Test Report | | | | Details |
| DSUPHTR | desuperheater | | | | Details |
| DTR | Days On Job Transfer Or Restriction | | | | Details |
| dtr | detrital | | | | Details |
| DTRV | Drop-Bar-Triggered Surge Valve (also production valve - Schlumberger) | | | | Details |
| DUR | Developed Ultimate Recovery | | | | Details |
| DUR | Duration | | | | Details |
| DVD-R | Digital Versatile Disc Recordable | | | | Details |
| DVRT | Digital Vertilog | | | | Details |
| DWTR | Daily Well Testing Report | | | | Details |
| DWTR | dewatering | | | | Details |
| E&P-FORUM | Oil Industry Intenational Exploration & Production Forum UK | | | | Details |
| Earls | Earlsboro | | | | Details |
| ECMOR | European Conference on the Mathematics of Oil Recovery | | | | Details |
| ECOPETROL | Empresa Colombiana de Petroleos Colombia | | | | Details |
| ECR | Emergency Command Room | | | | Details |
| ECR | Emergency Control Room | | | | Details |
| ECR | Employment Change Request | | | | Details |
| ECRD | Electrically Controlled Release Tool | | | | Details |
| EDCTN(R) | education(tor) | | | | Details |
| EDR | Exploration Drilling Report | | | | Details |
| EDR | Electronic Drilling Recorder | | | | Details |
| EDRS | Electrical Drilling Report System | | | | Details |
| EDRS | Enhanced Drilling Reporting System (KCA DEUTAG) | | | | Details |
| EEPROM | Electrically Erasable (user) Programmable Read-Only Memory | | | | Details |
| Efire | Electronic Firing Head | | | | Details |
| EFR | Engineering Factual Report | | | | Details |
| EFR | external floating roof | | | | Details |
| Egyfert | Egyptian Fertilizer Company | | | | Details |
| EIR | environmental impact report | | | | Details |
| ejtr | ejector | | | | Details |
| el gr | elevation ground | | | | Details |
| EMARAT | Emirates General Petroleum Corp. UAE | | | | Details |
| emer | emergency | | | | Details |
| EMR | Electronic Memory Read-out | | | | Details |
| EMR | Electronic Medical Records | | | | Details |
| EMR | Equipment Movement Record | | | | Details |
| EMR | Department of Energy, Mines, and Resources (Canada) | | | | Details |
| ENAFOR | Entreprise Nationale de Forage Algeria | | | | Details |
| ENFERSA | Empresa Nationale de Fertiliantes S.A. Spain | | | | Details |
| ENGEBRAS | Engenharia Especializada Brasileira, S.A. Brazil | | | | Details |
| engr(g) | engineer(ing) | | | | Details |
| ENVIR | environment | | | | Details |
| EOR | Enhanced Oil Recovery | | | | Details |
| EOR | east of Rockies | | | | Details |
| EOWR | End Of Well Report | | | | Details |
| EPCRA | Emergency Planning and Community Right-to-Know Act | | | | Details |
| EPCRA | Emergency Planning and Community Right –To-Know Act ( Title III of SARA, commonly called Right-To-Know or SARA Title III) | | | | Details |
| EPIDORIS | Exploration and Production Integrated Drilling Operations and Reservoir Information System | | | | Details |
| EPIRB | Emergency Position Indicating Radio Beacon | | | | Details |
| EPR | Exploration & Production - Russia | | | | Details |
| EPR | Energy profit ratio | | | | Details |
| EPXRTC | Regional Technical Directorate. Team that inherits the project after Exploration has found and appraised them. | | | | Details |
| EPX-RTC | Regional Technical Directorate. Team that inherits the project after Exploration has found and appraised them. | | | | Details |
| ER | Emergency Reponse | | | | Details |
| ER | Extended Reach (in Drilling horizontal wells) | | | | Details |
| ER | Erosion | | | | Details |
| ER | Extended Reach | | | | Details |
| ER | ERITREA | | | | Details |
| E-R | Diagram-Entity Relationship Diagram | | | | Details |
| ER(D) | Extended Reach (Drilling) | | | | Details |
| ERAP | Entreprise de Recherches et d’Activites Petrolieres France | | | | Details |
| ERC | Emissions Reduction Credit | | | | Details |
| ERC/MK | erection mark | | | | Details |
| ERCB | Energy Resources Conservation Board | | | | Details |
| ERCB | Energy Resources Conservation Board, Alberta | | | | Details |
| ERCB | Energy Resource Conservation Board (Alberta, Canada) | | | | Details |
| ERD | Extended Reach Drilling | | | | Details |
| ERD | Extended Reach Drilling (see comment) | | | | Details |
| erect | erection | | | | Details |
| ERF | error function | | | | Details |
| ERI | ERITREA | | | | Details |
| Eric | Ericson | | | | Details |
| ERIP | European/Russian Council for the Petroleum Industry (—) | | | | Details |
| ERM | Exploration Reservoir Management | | | | Details |
| EROEI | Energy return on energy invested | | | | Details |
| ERP | Emergency Response Plan | | | | Details |
| ERP | Enterprise Resource Planning | | | | Details |
| ERP | Experienced Retention Position | | | | Details |
| ERPG | Emergency Response Planning Guidelines | | | | Details |
| ERS | Easy Record Software | | | | Details |
| ERT | Emergency Response Team | | | | Details |
| ERT | Emergency Response Training | | | | Details |
| ERT | EPA Electronic Reporting Tool | | | | Details |
| ERW | extended reach well | | | | Details |
| ERW | electric resistance weld | | | | Details |
| ERWDA | Environmental Research & Wildlife Development Agency (UAE) | | | | Details |
| ESAR | Estimating & Schedule Assurance Review | | | | Details |
| E-SPIR | e-Spare Parts Interchangeable Record | | | | Details |
| ESR | Reservoir Engineering | | | | Details |
| ESR | equilibrium step rate test | | | | Details |
| ESRI | GIS Software (ESRI) | | | | Details |
| ESRI | Environmental Systems Research Institute | | | | Details |
| et vir | and husband | | | | Details |
| EUR | Estimated Ultimate Recovery | | | | Details |
| EUR | Expected ultimate recovery | | | | Details |
| EURAFRAP | EURAFRAP Nederland B.V. (and others) Netherlands | | | | Details |
| EURAFREP | Societe de Recherches et d’Exploitation de Petrole France | | | | Details |
| EUROCORD | European Federation of Twine, Cordage and Netting Industries | | | | Details |
| EUROGAS | European Union of the Natural Gas Industry Belgium | | | | Details |
| EUROGIF | European Oil and Gas Innovation Forum | | | | Details |
| EUROPIA | European Petroleum Industry Assn. | | | | Details |
| EVARE | Evaluation Report | | | | Details |
| EVR | Evaluation Run | | | | Details |
| ev-sort | even sorted | | | | Details |
| EWR | Early Warning Report | | | | Details |
| EWR | Early Warning Radar | | | | Details |
| EWR | End Of Well Report | | | | Details |
| EWR-M5 | EWR-M5 Resistivity | | | | Details |
| EWR-P4 | EWR-Phase 4 Resisitivity | | | | Details |
| EWR-P4D | EWR-Phase 4D Resistivity | | | | Details |
| EWRS | Electromagnetic Wave Resistivity (Shielded) | | | | Details |
| EXPEC-ARC | Exploration and Petroleum Engineering Center’s Advanced Research Center | | | | Details |
| expir | expire(ed)(ing)(ation) | | | | Details |
| EX-PRF | explosion proof | | | | Details |
| exr | executor | | | | Details |
| Exrx | executrix | | | | Details |
| extr | exterior | | | | Details |
| extrac | extraction | | | | Details |
| extrm | extreme or extremely | | | | Details |
| F/GOR | formation gas-oil ratio | | | | Details |
| F/WTR | fire water | | | | Details |
| FAFR | Fatal Accident Frequency Rate | | | | Details |
| FAIFR | first aid injury frequency rate | | | | Details |
| fair | fair | | | | Details |
| FAR | Fatal Accident Rate | | | | Details |
| Farm | Farmington | | | | Details |
| FARO | flow at rate of | | | | Details |
| FARO | flowed(ing) at the rate of | | | | Details |
| fbrgs | fiberglass | | | | Details |
| FD/WTR | feed water | | | | Details |
| FDC-GR | Formation Density-Gamma Ray Logging | | | | Details |
| fdr | feeder | | | | Details |
| FDRC | Capacitance water holdup tool (in PLT tool) | | | | Details |
| FER | Field Equipment Room | | | | Details |
| FERC | Federal Energy Regulatory Commission (US gov agency) | | | | Details |
| FERC | U.S. Federal Energy Regulatory Commission | | | | Details |
| FERC | Federal Energy Regulatory Commission | | | | Details |
| Ferg | Ferguson | | | | Details |
| ferr | ferruginous | | | | Details |
| fert | fertilizer | | | | Details |
| Fertil | Ruwais Fertilizer Industries | | | | Details |
| FERTIL | Ruwais Fertilizer Industries Ltd. Abu Dhabi | | | | Details |
| FGLR | formation GLR | | | | Details |
| FGOR | flowing gas oil ratio | | | | Details |
| f-gr | fine grained | | | | Details |
| FIFR | fatality incidence frequency rate | | | | Details |
| FIFRA | Federal Insecticide, Fungicide, and Rodenticide Act | | | | Details |
| FIRC | flow indicating ratio controller | | | | Details |
| fldspr | feldspar | | | | Details |
| FLOPR | Flow Profile Report | | | | Details |
| Flor | fl Florence flint | | | | Details |
| FLRA | Field Level Risk Assessment | | | | Details |
| FLTR | Fluid Travel Log/Fluid Entry Survey | | | | Details |
| FLTR | filter | | | | Details |
| fluor | fluorescence, fluorescent | | | | Details |
| FLUORAZ | a high performance elastomer for seal assemblies | | | | Details |
| Flwrpt | flowerpot | | | | Details |
| FMWTR | formation water | | | | Details |
| FOR | Free On Rail | | | | Details |
| FOR | fuel oil return | | | | Details |
| Forak | Foraker | | | | Details |
| Foram | foraminifera | | | | Details |
| formation | evaluation | | | | Details |
| Fort | Fortura | | | | Details |
| FORTRAN | Formula Translation | | | | Details |
| FoRxo | FoRxo Caliper | | | | Details |
| Fprf | fireproof | | | | Details |
| FR | Flow Rate | | | | Details |
| FR | Formation Resistivity factor | | | | Details |
| FR | FRANCE | | | | Details |
| fr | fractional, from | | | | Details |
| fr | fair | | | | Details |
| FR | feed rate | | | | Details |
| FR | flow recorder | | | | Details |
| fr | fractional | | | | Details |
| fr | from | | | | Details |
| fr | front | | | | Details |
| fr | frosted | | | | Details |
| fr | E/L from east line | | | | Details |
| fr | N/L from north line | | | | Details |
| fr | S/L from south line | | | | Details |
| fr | W/L from west line | | | | Details |
| F-R | oil fire-resistant oil | | | | Details |
| Fr. wa. | Fresh water | | | | Details |
| FRA | Fracture Log | | | | Details |
| FRA | Formation Rate Analysis | | | | Details |
| FRA | FRANCE | | | | Details |
| FRA | formation rate analyser, a well performance test method | | | | Details |
| FRA | friction reducing agent | | | | Details |
| FRAC | Frac Log DIP | | | | Details |
| FRAC L | Frac Log | | | | Details |
| frac(d)(s) | fracture, fractured, fractures | | | | Details |
| frac, fract | fracture, fractured | | | | Details |
| FRAC/GR | Frac Log-Gamma Ray DIP | | | | Details |
| FRAC-GR | Frac Log-Gamma Ray Log | | | | Details |
| fract | fractionation, fractionator, fractional | | | | Details |
| frag | fragment, fragmental | | | | Details |
| frag | fragment | | | | Details |
| fran | franchise | | | | Details |
| Franc | Franconia | | | | Details |
| FRANCAREP | Compagnie Franco-Afrique de Recherches Petrolieres France | | | | Details |
| FRARE | Fracture Report | | | | Details |
| FRC | Fire Retardant Clothing (Treated cotton) | | | | Details |
| FRC | Fast Rescue Craft | | | | Details |
| FRC | fire retardant clothing | | | | Details |
| FRC | flow recorder control | | | | Details |
| FRD | Focused Results Delivery | | | | Details |
| Fred | Fredericksburg | | | | Details |
| Fred | Fredonia | | | | Details |
| Free Ex Ins | FREE of any EXtra INSurance (Owners) | | | | Details |
| FREP | Fujian Refining and Petroleum Company Ltd. | | | | Details |
| Freq | Frequency | | | | Details |
| FRES | Final Reserve Report | | | | Details |
| FRF | Formation Resistivity Factor | | | | Details |
| FRFavg | The harmonic mean of the calculated directionally dependent FRFs | | | | Details |
| FRG | forge(ed)(ing) | | | | Details |
| Frgy | froggy | | | | Details |
| fri | friable | | | | Details |
| FRM(G) | frame, framing | | | | Details |
| FRO | FAROE ISLANDS | | | | Details |
| Fron | frontier | | | | Details |
| fros | frosted | | | | Details |
| Froth | a foam with very high internal gas volume, usually 90%+ gas High viscosity and often very stable | | | | Details |
| FRP | Fracture Re-opening Pressure | | | | Details |
| FRP | Fiberglass Reinforced Plastic | | | | Details |
| FRP | fiber reinforced pipe | | | | Details |
| FRP | failure to release packer | | | | Details |
| FRP | fiberglass-reinforced plastic | | | | Details |
| FRR | field receiving report | | | | Details |
| FRR | final report for rig | | | | Details |
| frs | fresh | | | | Details |
| FRT | Formation Response Test | | | | Details |
| FRT | Flow Rate Tester | | | | Details |
| frt | freight | | | | Details |
| Fruit | Fruitland | | | | Details |
| FRW | final report for well | | | | Details |
| frwk | framework | | | | Details |
| FRXL | Forxo | | | | Details |
| frzr | freezer | | | | Details |
| FSR | Facilities Status Report | | | | Details |
| Ft R | Fort Riley | | | | Details |
| ft-lb/hr | foot-pound per hour | | | | Details |
| FTR | Formation Treatment Run | | | | Details |
| FTR | failure to release from nipple/sidepocket | | | | Details |
| FTRE | Formation Testing Report | | | | Details |
| FTrL | Fluid Travel Log | | | | Details |
| furf | furfural | | | | Details |
| furn | furnace | | | | Details |
| FURN | furnish(ed) | | | | Details |
| Furn | & fix furniture and fixtures | | | | Details |
| FWR | Final Well Report | | | | Details |
| fwtr | fresh water | | | | Details |
| G Rk | gas rock | | | | Details |
| G/R OH | Gamma Ray-Open Hole | | | | Details |
| gal/yr | gallons per year | | | | Details |
| GAZPROM | RAO Gazprom (former USSR Ministry of Gas Production) Russia | | | | Details |
| GBR | UNITED KINGDOM | | | | Details |
| GCR | gas condensate ratio | | | | Details |
| GCR | gas-condensate ratio | | | | Details |
| GCRD | Gamma Guard | | | | Details |
| GDR | Global Depositary Receipt | | | | Details |
| GDR | Geothermal Development Redrill | | | | Details |
| GDR | gas-distillate ratio | | | | Details |
| GEOPR | Geological Operations Progress Report | | | | Details |
| GEORE | Geological Report | | | | Details |
| GEOROT | GEOgraphical ROTation | | | | Details |
| GFR | Gas Flow Rate | | | | Details |
| GFR | gas-fluid ratio | | | | Details |
| GGR | Greater Green River | | | | Details |
| GGRB | Greater Green River Basin | | | | Details |
| GGRD | Gamna Guard El | | | | Details |
| GGRD | Gamma Guard EL | | | | Details |
| G-Grd | Gamma Guard | | | | Details |
| GGRG | Gauge Ring | | | | Details |
| gHSEr | getting Health Safety & Environment right (BP expression) | | | | Details |
| Glor | Glorieta | | | | Details |
| GLR | Gas Liquid Ratio | | | | Details |
| GLR | gas / liquid ratio | | | | Details |
| GLR | gas-liquid ratio | | | | Details |
| GMR | Great Man-Made River | | | | Details |
| GOR | Gas-Oil-Ratio | | | | Details |
| GOR | Gas Oil Ratio | | | | Details |
| GOR | gas / oil ratio May refer to a solution GOR or total GOR | | | | Details |
| GOR | Gas to Oil Ratio | | | | Details |
| GOR | gas-oil ratio | | | | Details |
| Gor | Gorham | | | | Details |
| GPGR | Geo-Pilot Azimuthal Gamma Ray | | | | Details |
| GPR | gravel pack replacement | | | | Details |
| GR | Gamma Ray | | | | Details |
| GR | Gamma Ray Messung | | | | Details |
| GR | GRain | | | | Details |
| GR | Ground Level (or Elevation //(also [GE or GRE])) or Gamma Ray | | | | Details |
| GR | GREECE | | | | Details |
| GR | gamma ray log | | | | Details |
| GR | gauge ring | | | | Details |
| GR | Glen Rose | | | | Details |
| gr | grade | | | | Details |
| gr | gravity | | | | Details |
| gr | grease | | | | Details |
| gr | ground | | | | Details |
| gr | API gravityº API | | | | Details |
| gr | roy green royalty | | | | Details |
| GR | Gamma Ray Cased Hole | | | | Details |
| GR | Gamma Ray-Open Hole | | | | Details |
| GR | Gamma Ray Logging | | | | Details |
| GR CH | Gamma Ray Cased Hole | | | | Details |
| Gr Sd | Gray sand | | | | Details |
| gr wt | gross weight | | | | Details |
| GR&DC | Gulf Research and Development Company | | | | Details |
| GR, GRD | ground | | | | Details |
| GR/CALD | Gamma Ray/Dual Caliper | | | | Details |
| GR/D CALIPER | Gamma Ray/Dual Caliper | | | | Details |
| gr/dscf | grains per dry standard cubic foot | | | | Details |
| GR/N OH | Gamma Ray Neutron-Open Hole | | | | Details |
| GR/NEU | (Thru Casing) | | | | Details |
| GR/NEU | G/R Neutron | | | | Details |
| GR/NEU | Gamma Ray Neutron-Cased Hole | | | | Details |
| GR/NEU | Gamma Ray Neutron-Open Hole | | | | Details |
| GRA | Geochemical Reservoir Analyzer | | | | Details |
| GRA | gallons regular acid | | | | Details |
| GRAD | Gradiometer Log | | | | Details |
| GRAD | gradiomanometer | | | | Details |
| grad | gradual, gradually | | | | Details |
| gran | granular | | | | Details |
| gran | granite, granular | | | | Details |
| gran | w granite wash | | | | Details |
| granny rag | Type of coating or method of coating a pipeline in the field rather than factory applied coating | | | | Details |
| Granos | Graneros | | | | Details |
| grap | graptolite | | | | Details |
| grav | gravity | | | | Details |
| GRAV | Gravity | | | | Details |
| GRAY | Gnnity | | | | Details |
| Gray | Grayson | | | | Details |
| Grayb | Grayburg | | | | Details |
| GRC | GREECE | | | | Details |
| GRD | GeaRed | | | | Details |
| GRD | GRENADA | | | | Details |
| Grd | Guard | | | | Details |
| GRDC | Gamma Ray Depth Control | | | | Details |
| grdg | grading | | | | Details |
| grdg | loc grading location | | | | Details |
| GRDL | Guard | | | | Details |
| GRDL | guard log | | | | Details |
| GRE | Glass Reinforced Epoxy (Fibreglass) | | | | Details |
| GRE | Ground Elevation (also [GR or GE]) | | | | Details |
| GRE | Ground Elevation (also ) | | | | Details |
| GRE | Glass Reinforced Epoxy | | | | Details |
| GREG | Groupe de recherche en gazotechnologies | | | | Details |
| GRG | Global Reservoir Geology | | | | Details |
| GRG | gas reserve group | | | | Details |
| GRI | Gas Research Institute | | | | Details |
| GRI | Global Reporting Initiative | | | | Details |
| GRL | GREENLAND | | | | Details |
| GRL | Gallllla Ray | | | | Details |
| GRLOG | Grapholog | | | | Details |
| GRMR | Gradiomanometer | | | | Details |
| GRN | Gamma Ray Neutron Log | | | | Details |
| GRN | Goods Receipt Note (or Received Note) | | | | Details |
| GRN | Gamma Ray Neutron | | | | Details |
| grn | green | | | | Details |
| GRN | Gamma -Ray-Neutron | | | | Details |
| Grn | Riv Green River | | | | Details |
| grn | sh green shale | | | | Details |
| GRN | Gamma Ray-Neutron Logging | | | | Details |
| GRN | Simultaneous Gamma Ray-Neutron | | | | Details |
| GR-N | Gamma Ray – Neutron Log | | | | Details |
| GRN CH | Gamma Ray Neutron-Cased Hold | | | | Details |
| grnd | ground | | | | Details |
| GRNL | Gamma Ray - Neutron | | | | Details |
| GRNL | Gamma Ray – Neutron | | | | Details |
| grnlr | granular | | | | Details |
| grnt | granite | | | | Details |
| GRP | Glass Reinforced Plastic | | | | Details |
| GRP | group | | | | Details |
| GRS | gas to surface | | | | Details |
| grs | gross | | | | Details |
| GRS | Gamma Ray-Sonic Logging | | | | Details |
| GRSL | Gamma Ray - Sonic | | | | Details |
| GRSL | Gamma Ray – Sonic | | | | Details |
| GRST | Gamma Ray Spectrometry Tool | | | | Details |
| GRST | Grainstone | | | | Details |
| GRSVY | Gradient Survey Log | | | | Details |
| GRT | Gamma Ray Tool | | | | Details |
| Grt | Grant | | | | Details |
| grt | grant(of land) | | | | Details |
| grtg | grating | | | | Details |
| GRTS | Gamma Ray - Tracer survey | | | | Details |
| GRTS | Gamma Ray – Tracer Survey | | | | Details |
| grty | gritty | | | | Details |
| GRV | Gross Rock Volume | | | | Details |
| GRW | Gordon Rule Writing | | | | Details |
| grv | grooved | | | | Details |
| grvt | gravitometer | | | | Details |
| GRVTY | gravity | | | | Details |
| gry | gray | | | | Details |
| GVR | GeoVision Resistivity (RAB) - (near bit
resistivity) This tool includes GR also! | | | | Details |
| GWR | Gas Water Ratio | | | | Details |
| GWR | Geothermal Wildcat Redrill | | | | Details |
| GWREP | Geo Well Report | | | | Details |
| Gyr. | Gyroidina | | | | Details |
| Gyr. | sc. Gyroidina scal | | | | Details |
| GYRO | GvTo Survev | | | | Details |
| GYRO | Gyro Survey | | | | Details |
| GyroHDS1 | Gyro High-Speed Directional Survey | | | | Details |
| HADR | High Temperature Azimuthal Gamma Ray | | | | Details |
| HAGR | High Temperature Azimuthal Gamma Ray | | | | Details |
| HAR | Hazard Analysis Review | | | | Details |
| HAR | Hellenic Aspropyrgas Refinery Greece | | | | Details |
| Hara | Haragan | | | | Details |
| HARC | Hazard Analysis & Risk Control | | | | Details |
| hbr | harbor | | | | Details |
| Hburg | Hardinsburg sand(local) | | | | Details |
| HCR | High Closing Ratio or Hydraulic Control Remote (see comment) | | | | Details |
| HDR | Hot Dry Rock Development Redrill | | | | Details |
| hdr | header | | | | Details |
| HDS1R | High-Speed Directional Survey Retrievable | | | | Details |
| Hdwr | hardware | | | | Details |
| Her | Herington | | | | Details |
| Herm | Hermosa | | | | Details |
| HGOR | High Gas Oil Ratio | | | | Details |
| HGOR | high gas-oil ratio | | | | Details |
| HGR | Hanger | | | | Details |
| HIRA | Hazard Identification and Risk Assessment | | | | Details |
| HNBR | hydrogenated nitrile (bunadiene rubber) | | | | Details |
| HOR | Horizont | | | | Details |
| horiz | horizontal | | | | Details |
| horz | horizontal | | | | Details |
| hp-hr | horsepower-hour | | | | Details |
| HR | Human Resource | | | | Details |
| HR | Hanger Running tool | | | | Details |
| HR | HouR | | | | Details |
| HR | Hours on bit | | | | Details |
| HR | High Resolution | | | | Details |
| HR | CROATIA (LOCAL NAME: HRVATSKA) | | | | Details |
| HR | heavy reformate | | | | Details |
| hr | hour(s) | | | | Details |
| HR | Sul W hole full of sulfur water | | | | Details |
| hr/yr | hours per year | | | | Details |
| HRA | Health Risk Assessment | | | | Details |
| HRAL | High resolution Array Laterolog | | | | Details |
| HRCC | High Resolution Control Cartridge | | | | Details |
| HRCC | HCAl of Calliper (in Inches) | | | | Details |
| HRCH | Hostile Releasable Cablehead (see comment!) | | | | Details |
| HRD | High Resoluti on Dip Meter | | | | Details |
| HRD | High Resolution Dipmeter | | | | Details |
| HRD | high-resolution dipmeter | | | | Details |
| HRDD | HILT High Resolution Density Device | | | | Details |
| HRGD | HILT High Resolution Resitivity Gamma Ray Density Device | | | | Details |
| HRI | High Resolution Induction (includes HRAI) | | | | Details |
| HRLA | High-Resolution Laterolog Array Tool | | | | Details |
| HRLT | High-Resolution Laterolog Array Tool | | | | Details |
| HRMS | High Resolution Measurement Sonde | | | | Details |
| HRS | HouRS | | | | Details |
| hrs | heirs | | | | Details |
| HRS | hot-rolled steel | | | | Details |
| HRSS | High Resolution Sequence Stratigraphy | | | | Details |
| HRT | High Resolution Thermometer | | | | Details |
| HRT | High-Resolution Thermometer | | | | Details |
| HRT | Temperature Log | | | | Details |
| HRT | Temperature | | | | Details |
| HRV | CROATIA (LOCAL NAME: HRVATSKA) | | | | Details |
| HRWF | High Rate Water Frac (Haliburton) | | | | Details |
| HRWP | High Rate Water Pack (Haliburton) | | | | Details |
| HRWP | see high rate water pack | | | | Details |
| HTHRT | Hydraulic Tubing Hanger Running Tool (subsea wells) | | | | Details |
| htr | heater | | | | Details |
| HWR | Hot Dry Rock Wildcat Redrill | | | | Details |
| HYDRO | hydro test | | | | Details |
| HYDRO | Norsk Hydro Norway | | | | Details |
| HYDRO-Congo | National Oil Exploration and Exploitation Corp. Congo | | | | Details |
| hydtr | hydrotreater | | | | Details |
| HYROP | Hydrophone Log | | | | Details |
| IARC | Inter Arab Ratings Company | | | | Details |
| IARC | International Agency for Research on Cancer | | | | Details |
| IARF | Infinite-Acting Radial Flow | | | | Details |
| IARFR | Infinite Acting Radial Flow Regime | | | | Details |
| IBRD | International Bank for Reconstruction and Development | | | | Details |
| ICR | information collection request | | | | Details |
| IDRO | Industrial Development and Renovation Organization | | | | Details |
| IEL/GR | Induction Electrolog Gamma Ray | | | | Details |
| IEL/GR | Induction Log-Gamma Ray | | | | Details |
| IEL/GR/NEU | Induction Electrolog Gamma | | | | Details |
| IEL-GR | Induction Electrolog-Gamma Ray | | | | Details |
| IEL-GRN | Induction Electrolog-Gamma Ray Neutron | | | | Details |
| IFR | Integrated Functional Review | | | | Details |
| IFR | internal floating roofs | | | | Details |
| IGLR | injection gas lift ratio | | | | Details |
| IGOR | injection gas-oil ratio | | | | Details |
| IGR | Independent Gate Reveiw | | | | Details |
| IGR | Injection Gas redrill | | | | Details |
| I-GR | Induction-Gamma Ray Logging | | | | Details |
| IHPHR | indicated horsepower hour | | | | Details |
| IHRDC | International Human Resources Development Company | | | | Details |
| IIRC | If I recall correctly | | | | Details |
| imperv | impervious | | | | Details |
| INCLR | intercooler | | | | Details |
| INCR | Incline Report | | | | Details |
| incr | increase (d) (!gg) | | | | Details |
| incr | increase(ed)(ing) | | | | Details |
| INCRE | Incline Report | | | | Details |
| indr | indurated | | | | Details |
| INDRS | IND RES Sonic Log | | | | Details |
| ingr | intergranular | | | | Details |
| INR | Indian Rupee | | | | Details |
| Inst Ser | Special Instrument Service Sp | | | | Details |
| instr | instrument, instrumentation | | | | Details |
| INSUR | Inrun Survey Report | | | | Details |
| intclr | intercooler | | | | Details |
| interbd | interbedded | | | | Details |
| interbdd | interbedded | | | | Details |
| Intergen | International Generating Company | | | | Details |
| inter-gran | intergranular | | | | Details |
| interlam | inter laminated | | | | Details |
| inter-lam | interlaminated | | | | Details |
| INTERQUISA | Intercontinental Quimica S.A. Spain | | | | Details |
| INTERTANKO | Intl. Assn. of Independent Tanker Owners (—) | | | | Details |
| inter-xln | intercrystalline | | | | Details |
| interxlyn | intercrystalline | | | | Details |
| intgr | integrator | | | | Details |
| intr | intrusion | | | | Details |
| Investcorp | Arabian Investment Banking Corporation | | | | Details |
| invrtb | invertebrate | | | | Details |
| IOR | Improved Oil Recovery | | | | Details |
| IPR | Injection Production Ratio (waterflood) | | | | Details |
| IPR | Inflow Performance Relationship | | | | Details |
| IPR | Independant Peer Review | | | | Details |
| IPR | inflow performance relationship The relationship that shows inflow as a function of drawdown Changes with time | | | | Details |
| IPR | inflow performance rate | | | | Details |
| IPRTOC | Improved Petroleum Recovery TransOil Corporation | | | | Details |
| IR | Interpretation Report | | | | Details |
| IR | Injury Rate | | | | Details |
| IR | Incident Rate | | | | Details |
| IR | IRAN | | | | Details |
| IR | Infra-Red | | | | Details |
| IR | injection rate | | | | Details |
| IR | infrared | | | | Details |
| IRAA | Independent Refiners Association of America | | | | Details |
| IRBP | Institut Royal Belge du Petroles Belgium | | | | Details |
| IRC | Inspection Release Certificate | | | | Details |
| IRC | i-Recruitment Code | | | | Details |
| IRDV | Intelligent Remote Dual Valve | | | | Details |
| Ire | Ireton | | | | Details |
| IRENA | International Renewable Energy Agency | | | | Details |
| IREP | Integrated Report | | | | Details |
| IRF | Improved Recovery Factor | | | | Details |
| IRF | International Regulators Forum | | | | Details |
| IRGC | Islamic Revolution’s Guards Corps | | | | Details |
| irid | iridescent | | | | Details |
| IRIS | Intelligent Remote Implementation System | | | | Details |
| IRIS | International Research Institute of Stavenger | | | | Details |
| IRISTM | intelligent remote implementation system | | | | Details |
| IRL | IRELAND | | | | Details |
| IRM | Integrated Reservoir Modelling | | | | Details |
| IRM | Information and Records Management | | | | Details |
| IRN | IRAN | | | | Details |
| IRO | Assn. of Dutch Suppliers in the Oil & Gas Industry Netherlands | | | | Details |
| IRP | Industry Recommended Practice | | | | Details |
| IRQ | IRAQ | | | | Details |
| IRR | Internal Rate of Return | | | | Details |
| irreg | irregular | | | | Details |
| IRS | Integrated Reservoir Study | | | | Details |
| IRS | Internal Revenue Service | | | | Details |
| IRSHAD | Related with Petroleum Ports Authority and Shipping Agents | | | | Details |
| Irst | ironstone | | | | Details |
| IRT | Induction Resistivity Tool | | | | Details |
| IRT | Induction-Spherically Focused Log | | | | Details |
| IRTJ | IRTJ Gamma Ray Slimhole Log | | | | Details |
| ISFGR | ISF GR Casing Collar Locator Log | | | | Details |
| ISO/CKR | isocracker | | | | Details |
| ISR | ISRAEL | | | | Details |
| ISRS | international safety rating system | | | | Details |
| ITR | Integrated Technical Review (Subsurface, replaced IMR in 2009) (Surface has Assumptions Review) | | | | Details |
| ITR | Inspection Test Record | | | | Details |
| IWR | Injection Water redrill | | | | Details |
| IWRC | Independent wire rope center | | | | Details |
| jbr | jobber | | | | Details |
| JCGR | Junk Catcher Gauge Log | | | | Details |
| jeeper | Electronic device or instrument used to detect holes (holidays) in the steel pipeline protective coating | | | | Details |
| Jersey | Standard Oil Company of New Jersey | | | | Details |
| JOR | JORDAN | | | | Details |
| Jordinvest | Jordan Investment Trust | | | | Details |
| JPRC | Jordan Petroleum Refinery Company | | | | Details |
| JRA | job risk assessment | | | | Details |
| JRCTM | Jet Research Center | | | | Details |
| Jur | Jurassic | | | | Details |
| juris | jurisdiction | | | | Details |
| KALREZTM | a brand name for a high temperature seal | | | | Details |
| KAZGOSNEDRA | Kazakhstan | | | | Details |
| Keo-Bur | Keokuk-Burlington | | | | Details |
| KERMAC | Kerr-McGee Corp. | | | | Details |
| kero | kerosine(kerosene) | | | | Details |
| KEVLARTM | an extremely strong fiber, common in composites | | | | Details |
| KGRA | known geothermal resource area | | | | Details |
| KIR | KIRIBATI | | | | Details |
| Kirt | Kirtland | | | | Details |
| Kl-Packer | Klappen-Packer | | | | Details |
| KOR | KOREA, SOUTH | | | | Details |
| Kr | relative permeability | | | | Details |
| Kr | Relative Permeability. | | | | Details |
| KR | KIRIBATI | | | | Details |
| KR | KOREA, SOUTH | | | | Details |
| KREB | Kuwait Real Estate Bank | | | | Details |
| KREIC | Kuwait Real Estate Investment Consortium | | | | Details |
| Krg | Relative Permeability to Gas | | | | Details |
| Kri | Krider | | | | Details |
| Kro | oil relative permiability | | | | Details |
| Kro | Triphasic Relative Permeability to Oil | | | | Details |
| Kro | relative permeability to oil | | | | Details |
| Krog | Relative Permeability to Oil in presence of Gas | | | | Details |
| Krow | Relative Permeability to Oil in presence of Water | | | | Details |
| KRP | Kill Rate Pressure | | | | Details |
| Krw | water relatiie permiability | | | | Details |
| Krw | Relative Permeability to water | | | | Details |
| kvar | kilovar; reactive kilovolt-ampere | | | | Details |
| kvar-hr | kilovar-hour | | | | Details |
| kWh/yr | kilowatt-hours per year | | | | Details |
| L x R | links rechts Übergang | | | | Details |
| L/Cret | Lower Cretaceous | | | | Details |
| LAER | Lowest Achievable Emission Rate | | | | Details |
| Lar | Laramie | | | | Details |
| LARS | Launch & Recovery System | | | | Details |
| LASR | Laser Log | | | | Details |
| LAYR | Multi-Layer Testing | | | | Details |
| lb/hr | pounds per hour | | | | Details |
| lb/yr | pounds per year | | | | Details |
| LBR | LIBERIA | | | | Details |
| lbr | lumber | | | | Details |
| LCR | Lowest Current Rate | | | | Details |
| LDR | loader | | | | Details |
| LEPRE | Litho-Elastic Property Report | | | | Details |
| LGR | Liquid Gas Ratio | | | | Details |
| LGR | Local Grid Refinement | | | | Details |
| LGR | Liquid Gas Recovery | | | | Details |
| LGR | Local Grid Refinement | | | | Details |
| LGR | Liquids to Gas Ratio | | | | Details |
| LH/RP | long handle/round point | | | | Details |
| LIRA | Logistic and Infrastructure Resource Assessment | | | | Details |
| LITHR | Lithological Description Report | | | | Details |
| LITRE | Lithostratigraphy Report | | | | Details |
| LKR | locker | | | | Details |
| LL GR-N | Laterlog-Gamma Ray-Neutron Log | | | | Details |
| LL/GR | Laterolog-Gamma Ray | | | | Details |
| LL/GR/NEU | Laterolog-Gamma Ray-Neutron | | | | Details |
| LLRT | liquid level leak test | | | | Details |
| LMR | Lower Marine Riser | | | | Details |
| LMRP | Lower Marine Riser Package | | | | Details |
| Lnr | liner | | | | Details |
| LOGRS | Log Restoration Report | | | | Details |
| LOLER | Lifting Operations and Lifting Equipment Regulations | | | | Details |
| LOR | Letter Of Recommendation | | | | Details |
| LOR | Land Owner Royalty | | | | Details |
| LOR | Lindsey Oil Refinery Ltd. UK | | | | Details |
| LPR | Lower Pipe Rams | | | | Details |
| LPR | Tester valves (Halliburton) | | | | Details |
| LPR | Low Permeability Reservoir | | | | Details |
| LPRN | Tester valves (Halliburton) | | | | Details |
| LR | Lloyds Register of Shipping | | | | Details |
| LR | Large Range | | | | Details |
| LR | LIBERIA | | | | Details |
| LR | Legacy Rehost | | | | Details |
| LR | level recorder | | | | Details |
| LR | long radius | | | | Details |
| LRAP | long-range automation plan | | | | Details |
| LRC | level recorder controller | | | | Details |
| lrg | large | | | | Details |
| LRP | Lower Riser Package | | | | Details |
| LRP | Low Resistivity Pay | | | | Details |
| LRP | long-range plan | | | | Details |
| LRT | LINC Running Tool (SLB data Acquisition) | | | | Details |
| LRTAP | Long-Range Transboundary Air Pollution | | | | Details |
| LRTC | LINC Running Tool Cartridge (SLB data Acquisition) | | | | Details |
| LRTL | LINC Running Tool Latch (SLB data Acquisition) | | | | Details |
| LSBGR | Long Spacing BHC GR Log | | | | Details |
| lstr | lustre | | | | Details |
| LTI(FR) | Lost Time Incident (Frequency Rate) | | | | Details |
| LTIFR | lost time injury frequency rate | | | | Details |
| ltr | letter | | | | Details |
| LTRM | long term reservoir management | | | | Details |
| LUBRIESUR | Lubricantes del Sur S.A. Spain | | | | Details |
| LUBRINER | Lubricantes Nervion S.A. Spain | | | | Details |
| LUBRITURIA | Lubricantes Turia S.A. Spain | | | | Details |
| LVBR | Low Value Budget Request | | | | Details |
| lwr | lower | | | | Details |
| LWRP | lower workover riser package | | | | Details |
| LxR | links rechts Übergang | | | | Details |
| M & R | Sta. measuring and regulating station | | | | Details |
| M or m | prefix designating a number in thousands (not to be confused with SI prefix M for mega- or m for milli) | | | | Details |
| m/r | Mates receipt | | | | Details |
| MAHBRT | metres along hole below rotary table | | | | Details |
| MAIR | Maximum Allowable (water) Injection Rate | | | | Details |
| Major | typically a large operator, usually a multinational oil company that is usually a large producer in several areas of the world | | | | Details |
| MAMR | Main Administration of Mineral Resources | | | | Details |
| MAR | Multidisciplinary Asset Review | | | | Details |
| MAR | MOROCCO | | | | Details |
| mar | marine | | | | Details |
| mar | maroon | | | | Details |
| MARA | Maralog | | | | Details |
| March | Marchand | | | | Details |
| marg | marginal | | | | Details |
| Marg. | Marginulina | | | | Details |
| Marg. coco. | Marginulina coco | | | | Details |
| Marg. fl. | Marginulina flat | | | | Details |
| Marg. Rd | Marginulina round | | | | Details |
| Marg. Tex. | Marginulina texana | | | | Details |
| margas | marine gasoline | | | | Details |
| MARICONSULT | Technical support to Transmed Algeria | | | | Details |
| Mark | Markham | | | | Details |
| Marm | Marmaton | | | | Details |
| MARPOL | Marine Pollution | | | | Details |
| MARR | Maximum Allowable Reservoir Rate | | | | Details |
| MARSH | Marshal(ling) | | | | Details |
| MAXR | Monobore Automatic X-Type Release | | | | Details |
| Mbr | Member | | | | Details |
| MBR | Minimum Bending Ratio | | | | Details |
| mbr | member(geologic) | | | | Details |
| MBRO | Multi-Bore Restriction Orifices | | | | Details |
| MCR | Manpower Change Request | | | | Details |
| mcr-x | microcrystalline | | | | Details |
| MDBRL | Measured Depth Below Reference Level | | | | Details |
| MDL_R | Compact Dual Laterolog Sonde | | | | Details |
| MDNR | Michigan Department of Natural Resources | | | | Details |
| MDR | Monthly Development Report | | | | Details |
| MDR | Monthly Drilling Report | | | | Details |
| MDR | manufacturer’s data reports | | | | Details |
| MDR | Main Drilling Report | | | | Details |
| MDRT | Measured Depth below Rotary Table | | | | Details |
| MDRT | measured depth relative to the rotary table | | | | Details |
| Medr | Medrano | | | | Details |
| MEOR | Microbial EOR | | | | Details |
| MEOR | microbial enhanced oil recovery | | | | Details |
| MEPRL | Mechanical Properties Log | | | | Details |
| MER | Maximum Efficient Rate | | | | Details |
| MER | Medical Emergency Response | | | | Details |
| MER | Maximum effective rate (of production) | | | | Details |
| MER | maximum efficient recovery or rate | | | | Details |
| Mer | Meramec | | | | Details |
| merc | mercury | | | | Details |
| mercap | mercaptan | | | | Details |
| MERCR | Mercury Injection Study Report | | | | Details |
| MERG | Merge FDC/CNL/Gamma Ray/Dual Laterolog/Micro SFL Log | | | | Details |
| merid | meridian | | | | Details |
| methr | methanator | | | | Details |
| metr | metric | | | | Details |
| MFR | Multi Frequency Resistivity | | | | Details |
| MFR | Multi-Frequency Resistivity | | | | Details |
| MFR | manufacture(er) | | | | Details |
| Mg/yr | megagrams per year | | | | Details |
| mgr | manager | | | | Details |
| m-gr | medium grained | | | | Details |
| MICR | moving in completion rig | | | | Details |
| microsec | microsecond | | | | Details |
| micro-xin | microcrystalline | | | | Details |
| Midor | Middle East Oil Refinery | | | | Details |
| MIFR | Mini Frac Log | | | | Details |
| MIR | Materials Issue Request | | | | Details |
| MIR | maximum injection rate | | | | Details |
| MIR | moving in rig | | | | Details |
| MIRO | Mineraloelraffinerie Oberrhein GmbH & Co. Germany | | | | Details |
| MIRT | moving in rotary tools | | | | Details |
| MIRU | Move in, Rig up | | | | Details |
| MIRU | Move In and Rig Up | | | | Details |
| MIRU | moving in and rigging up | | | | Details |
| MIRUSU | moving in rigging up swabbing units | | | | Details |
| MIRV | Multiple-opening Intrenally operated Reversing Valve (SLB tool) | | | | Details |
| MISR | moving in service rig | | | | Details |
| ML/CAL/GR | Minilog Caliper Gamma Ray | | | | Details |
| MM or mm | prefix designating a number in millions (or SI unit millimetre) | | | | Details |
| MMBtu/hr | million British thermal units per hour | | | | Details |
| MMormm | prefix designating a number in millions (not to be confused with SI unit mm for millimetre) | | | | Details |
| MMR | Compact Microlaterolog | | | | Details |
| MMR | MYANMAR (SEE BURMA) | | | | Details |
| MMRVB | million reservoir barrels | | | | Details |
| MNR | Ministry of Natural Resources, Kurdistan Region of Iraq | | | | Details |
| MNR | minor | | | | Details |
| mnrl | mineral | | | | Details |
| MOMR | Monthly Oil Market Report | | | | Details |
| Moor | Mooringsport | | | | Details |
| MOR | Managed Open Resources | | | | Details |
| MOR | Monthly Oil Report | | | | Details |
| Mor | Morrow | | | | Details |
| MOR | moving out rig | | | | Details |
| Morr | Morrison | | | | Details |
| MORT | moving (ed) off rotary tools | | | | Details |
| MORT | moving out(off ) rotary tools | | | | Details |
| MPGR-Soap | multipurpose grease soap base | | | | Details |
| MPR | Multidiciplinary Peer Review | | | | Details |
| MPR | Middle Pipe Rams | | | | Details |
| MPR | Monthly Progress Report | | | | Details |
| MPR | Multiple Propogation Resistivity | | | | Details |
| MPSR | Multisample Production Sample Receptacle (MDT sample bottle) | | | | Details |
| MR | Material Requisition (purchasing) | | | | Details |
| MR | Mobility Ratio (water or EOR flood, less than 1 is good) | | | | Details |
| MR | Marine Riser | | | | Details |
| MR | Mantelrohr | | | | Details |
| MR | Mud Report | | | | Details |
| MR | Medium Range | | | | Details |
| MR | Morning Report | | | | Details |
| MR | Marine Riser, (Morning report) | | | | Details |
| MR | MAURITANIA | | | | Details |
| MR | marine rig | | | | Details |
| MR | meter run | | | | Details |
| Mr | milliroentgen | | | | Details |
| MRBP | Magna Range Bridge Plug | | | | Details |
| MRC | Maximum Reservoir Contact | | | | Details |
| MRC | maximum reservoir contact (well) | | | | Details |
| MRCF | MDT - Flow Control Module | | | | Details |
| MRCV | Multi Reverse Circulating Valve | | | | Details |
| mrem | millirem (a radiation dose or exposure unit) | | | | Details |
| MREX | Magnetic Resonance Explorer Imaging Log | | | | Details |
| MRF | “merf ”/main reaction furnace | | | | Details |
| MRHY | MDT - hydraulic power module (electric module) | | | | Details |
| MRI | Mechanical Risk Index (Oilpatch standard) | | | | Details |
| MRI | Material Recommendation Index (a factor for evaluating solid production handling of ESP pumps) | | | | Details |
| MRI | magnetic resonance imaging | | | | Details |
| MRIL | Magnetic Resonance Imaging Log | | | | Details |
| MRIL-WD | Magnetic Resonance Image Logging | | | | Details |
| MRIRE | Magnetic Resonance Image Report | | | | Details |
| MRIW | Monthly Report of Injecting Wells | | | | Details |
| MRK | marking | | | | Details |
| MRLD | Mechanical Rigid Lockdown tool (Drill euipment tool) | | | | Details |
| mrlst | marlstone | | | | Details |
| MRMS | MDT - Multisample Module (6 samples) | | | | Details |
| MRO | Maintenance, repair, and operations | | | | Details |
| MRO | Memory Read Out | | | | Details |
| MRP | Magnetic Resonanace Porosity | | | | Details |
| MRPA | MDT - Dual-Packer Module (see comment!) | | | | Details |
| MRPC | MDT - Power Cartridge in MDT converting AC to DC | | | | Details |
| MRPD | MDT - Dual-Probe Module | | | | Details |
| MRPM | Bureau de Recherches et de Participations Minieres Morocco Morocco | | | | Details |
| MRPO | MDT - Pump-Out Module | | | | Details |
| MRPP | MDT - Power Panel | | | | Details |
| MRPS | MDT - Single-Probe Module | | | | Details |
| MRPS | Modular Formation Dynamics Tester Single-Probe | | | | Details |
| MRPW | Monthly Report of Producing Wells | | | | Details |
| MRQ | memo requesting quote(s) | | | | Details |
| MRR | Material Receipt Report | | | | Details |
| MRSC | MDT - Modular Sample Chamber (conventional 1 or 2 3/4 gallon sample chambers_ NOT PVT) | | | | Details |
| MRSC | Modular Formation Dynamics Tester Sample Chamber | | | | Details |
| MRST | Multi Reverse Spot Tool (Expro DST tool) | | | | Details |
| MRT | Magnetic Resonance | | | | Details |
| MRT | Micro Resistivity Tool | | | | Details |
| MRT | MAURITANIA | | | | Details |
| MRT400 | Micro Resistivity Tool | | | | Details |
| MRWD | Magnetic Resonanace While Drilling | | | | Details |
| MSR | Mud Silt Removal acid | | | | Details |
| MSR | MONTSERRAT | | | | Details |
| MSR | mud/silt remover | | | | Details |
| MSRP | manufacturer's suggested retail price | | | | Details |
| Mstr | master | | | | Details |
| MTIR | medically treated injury rate | | | | Details |
| MTR | Material Test Report | | | | Details |
| MTR | motor | | | | Details |
| mtr | meter | | | | Details |
| MVERT | Corrosion log from Baker Hughes | | | | Details |
| MVRT | Multi Verto Log | | | | Details |
| MVRT | Multi-Channel Vertilog | | | | Details |
| MWDRE | Measurement While Drilling Report | | | | Details |
| NACR | National Association of Chemical Recyclers | | | | Details |
| NALRD | Northern Alberta Land Registration district | | | | Details |
| NAMCOR | National Petroleum Corp. of Namibia Namibia | | | | Details |
| Napocor | National Power Corporation | | | | Details |
| NARO | National Association of Royalty Owners | | | | Details |
| NARR | narrative | | | | Details |
| NATREF | National Petroleum Refiners of South Africa (Pty) Ltd. South Africa | | | | Details |
| Navr | Navarro | | | | Details |
| NBR | nitrile butadiene rubber The most widely used elastomers in the oil field | | | | Details |
| NCR | Non Conformity Report | | | | Details |
| NDOR | notifiable dangerous occurrence rate | | | | Details |
| NEFR | Noise Exposure Frequency Rate | | | | Details |
| NER | NIGER | | | | Details |
| NERC | North American Electric Reliability Corporation | | | | Details |
| NEREFCO | Netherlands Refining Co. Netherlands | | | | Details |
| NETRA | Norddeutsche Erdgas Transversale & Co. Germany | | | | Details |
| Neutron | Ray | | | | Details |
| NFL/GR | Nuclear Flolog-Gamma Ray | | | | Details |
| NFL/GR/NEU | Nuclear Flolog-Gamma Ray Neutron | | | | Details |
| NFR | Naturally Fractured Reservoirs | | | | Details |
| NGR | Natural Gamma Ray | | | | Details |
| NGRC | National Geological Records Centre (United Kingdom) | | | | Details |
| NGRT | Gamma Ray Tool | | | | Details |
| NGTR | NGT Ratio Log | | | | Details |
| NHRP | National Register of Historic Places | | | | Details |
| NIR | near infared | | | | Details |
| NIRPDC | National Iranian Refining & Petroleum Products Distribution Co. Iran | | | | Details |
| NITR | nitrile | | | | Details |
| nitro | nitoglycerine | | | | Details |
| NLL/GR | Neutron Lifetime Gamma Ray | | | | Details |
| NLL/GR/NEU | Neutron Lifetime G/R-Neutron | | | | Details |
| NLRB | National Labor Relations Board | | | | Details |
| NMR | Nuclear Magnetic Resonance Log | | | | Details |
| NMR | nuclear magnetic resonance | | | | Details |
| NMR | Nuclear Magnetic Ressonance | | | | Details |
| NMR | nuclear magnetic resonance log Can show the difference in water, oil and gas movable fluids | | | | Details |
| NMRT | Nuclear Magnetic Resonance Tool | | | | Details |
| NMTIR | non-medically treated injury rate | | | | Details |
| NOR | Notice Of Readiness | | | | Details |
| NOR | NORWAY | | | | Details |
| NOR | no order required | | | | Details |
| nor | normal | | | | Details |
| NORM | Naturally Occurring Radioactive Material | | | | Details |
| NORM | Natural Occurring Radioactive Minerals | | | | Details |
| NORM | Natural Occurring Radioactive Material | | | | Details |
| NORM | a naturally occurring radioactive scale Usually Barium Sulfate scale with Uranium or Radium atoms substituted into the lattice structure Can be detected downhole with a gamma ray log | | | | Details |
| NORSOK | Norsk Sokkels Konkurranseposisjon | | | | Details |
| NPR | Naval Petroleum Reserve | | | | Details |
| NPRA | National Petrochemical & Refinery Association | | | | Details |
| NPRA | Naval Petroleum Reserve, Alaska | | | | Details |
| NPRA | National Petroleum Refiners Association | | | | Details |
| NPR-A | National Petroleum Reserve–Alaska | | | | Details |
| NPRM | Notice Proposed Rulemaking | | | | Details |
| NPTR | American Standard Taper Railing Pipe Thread | | | | Details |
| NR | Non Rotating | | | | Details |
| NR | NAURU | | | | Details |
| NR | no returns, mud logging term | | | | Details |
| NR | no report or not reported | | | | Details |
| nr | not reported | | | | Details |
| NR | new rod | | | | Details |
| NR | no recovery | | | | Details |
| NR | no report, not reported | | | | Details |
| NR | nonreturnable, no returns, not reached | | | | Details |
| NRA | Natural Resources Authority | | | | Details |
| NRC | National Recruitment Center | | | | Details |
| NRC | Nuclear Regulatory Commission or National Response Center | | | | Details |
| NRC | Nuclear Regulatory Commission | | | | Details |
| NRe | Reynold’s number | | | | Details |
| NREC | National Real Estate Company | | | | Details |
| NREL | National Renewable Energy Laboratory, a laboratory of the US Department of Energy | | | | Details |
| NRI | Net Revenue Interest | | | | Details |
| NRP | National Religious Party | | | | Details |
| NRPOD | New Revised Plan of Development | | | | Details |
| NRS | Non-reactive Reservoir Sampler (SLB) | | | | Details |
| NRS | nonrising stem(valve) | | | | Details |
| NRSB | nonreturnable steel barrel | | | | Details |
| NRSD | nonreturnable steel drum | | | | Details |
| NRU | NAURU | | | | Details |
| NRV | Non Return Valve (Chicksan valve that only allows flow in one direction) | | | | Details |
| NRV | Non Return Valve | | | | Details |
| NRWO | non rig workover | | | | Details |
| ntr | nothing to report | | | | Details |
| NUCR | Nuclear | | | | Details |
| NUMAR | Magnetic Resonance Image Log | | | | Details |
| OBR | oil | | | | Details |
| OBW & RS | optimum bit weight and rotary speed | | | | Details |
| OCR | Optical Character Recognition (In scaning & printing - changing the scan to text ) | | | | Details |
| OCR | Office of Coal Research | | | | Details |
| ODR | Operating day rate | | | | Details |
| OERB | Oklahoma Energy Resources Board | | | | Details |
| OFR | Oil Flow Rate | | | | Details |
| OHRA | Occupational Health Risk Assessment | | | | Details |
| OHRM | Occupational Heath Risk Management | | | | Details |
| oilfract | Oil fractured | | | | Details |
| OILREC | OIL RECovery | | | | Details |
| OMRL | Oriented Micro | | | | Details |
| OMRL | OMRL Log | | | | Details |
| OMRL | Oriented Micro-Resistivity Log | | | | Details |
| OMRL | oriented microresistivity | | | | Details |
| Onarep | Office National de Recherche et d’Exploitation Petrolière | | | | Details |
| ONAREP | Office National des Recherches et d’Exploitations Petrolieres (Moroccan National Oil Co.) Morocco | | | | Details |
| ONR | octane number requirement | | | | Details |
| ONRI | octane number requirement increase | | | | Details |
| oper | operate, operations, operator | | | | Details |
| Operc | Operculinoides | | | | Details |
| opr | operator | | | | Details |
| OPR | Orienting Perforating Service | | | | Details |
| OPRES | Overpressure Log | | | | Details |
| OR | Oregon PA - Pennsylvania | | | | Details |
| OR | orange | | | | Details |
| Or | Oread | | | | Details |
| OR&A | Operations Readiness & Availability | | | | Details |
| OR&A | Operations Readiness and Assurance | | | | Details |
| ORB | Oil Record Book | | | | Details |
| ORC | Oman Oil Refinery Company | | | | Details |
| ORD | Compensated Bulk Density | | | | Details |
| Ord | Ordovican | | | | Details |
| Ore | a mineral deposit rich enough to be mined commercially | | | | Details |
| ORF | offshore receiving facility | | | | Details |
| orf | orifice | | | | Details |
| org | organic | | | | Details |
| org | organization | | | | Details |
| ORI | Overriding Royalty Interest | | | | Details |
| ORI | Orientation Borehole Corrections | | | | Details |
| ORIAC | Oil Refining Industry Action Committee | | | | Details |
| ORICO | Oriented Core Data Report | | | | Details |
| ORIENT | orientation | | | | Details |
| orif | orifice | | | | Details |
| orig | original. originally | | | | Details |
| orig | original, originally | | | | Details |
| Orisk | Oriskany | | | | Details |
| ORIT | Instrument Orientation Log | | | | Details |
| ORL | Oil Refineries Ltd. Israel | | | | Details |
| ORM | Other Regulated Materials | | | | Details |
| orng | orange | | | | Details |
| ORP | Opportunity Realization Process | | | | Details |
| ORP | Origin Reference Point | | | | Details |
| ORR | Overriding Royalty | | | | Details |
| ORRI | overriding royalty interest | | | | Details |
| ORSANCO | Ohio River Valley Water Sanitation Commission | | | | Details |
| orth | orthoclase | | | | Details |
| OSHRC | Occupational Safety and Health Review Commission | | | | Details |
| OSR | Oil Steam Ratio | | | | Details |
| OSR | Oil Steam Ratio (primarily used for economics) | | | | Details |
| OSRC | (ADNOC) Oil Spill Response Centre | | | | Details |
| OTDR | Optical Time Domain Reflectometry | | | | Details |
| Our | Ouray | | | | Details |
| overbend | High spot in a pipeline usually installed by field-bending a pipeline joint | | | | Details |
| OWR | Oil Water Ratio (see comment!) | | | | Details |
| OWR | oil | | | | Details |
| P Lar | Post Laramine | | | | Details |
| PADPRT | Pressure Assisted Drillpipe Running Tool | | | | Details |
| PAR | Pre-Assembled Rack | | | | Details |
| PAR | per-acre rental | | | | Details |
| Para | Paradox | | | | Details |
| Parco | Pak-Arab Refinery Ltd. | | | | Details |
| PARCO | Pak-Arab Refinery Pakistan/Abu Dhabi | | | | Details |
| Park | C Park City | | | | Details |
| PART | partial | | | | Details |
| PARTEX | Participations & Exploration Corporation | | | | Details |
| PBR | Polished Bore Receptacle (component of a completion string) | | | | Details |
| PBR | Polished Bore Receptacle (component of a completion string) | | | | Details |
| PBR | Polished Bore Receptacle | | | | Details |
| PBR | see Polished Bore Receptacle | | | | Details |
| PBRA | Petrobras | | | | Details |
| PCKR | Packer Log | | | | Details |
| PCKR | Packer | | | | Details |
| PCR | Permanent Cement Retainer | | | | Details |
| PCR | Performance and Career Review (Staff Appraisal) | | | | Details |
| PDKR | PDK 100 Report | | | | Details |
| PDPR | Per Day Pro-Rata | | | | Details |
| PDR | Performance Development Review | | | | Details |
| PDR | Geopressure Development Redrill | | | | Details |
| PDR | pressure differential recorder | | | | Details |
| PDR | Pressure Data Report | | | | Details |
| PDRC | pressure differential recorder controller | | | | Details |
| PER | Perforation Run | | | | Details |
| PER | PERU | | | | Details |
| perco | percolation | | | | Details |
| PERDC | Perforation Depth Control | | | | Details |
| Perf | Perforation | | | | Details |
| PERF | Petroleum Environmental Research Forum | | | | Details |
| perf | perforate, perforated | | | | Details |
| PERF | Perforated Log | | | | Details |
| perf | perforate(ed)(ing)(or) | | | | Details |
| perf | csg perforated casing | | | | Details |
| PERFO | Perforation Log | | | | Details |
| PERI | Periscope | | | | Details |
| PERM | Permeability | | | | Details |
| perm | permeable, penneability | | | | Details |
| perm | penmeable, permeability | | | | Details |
| perm | permanent | | | | Details |
| perm | permeable(ability) | | | | Details |
| Perm | Permian | | | | Details |
| PERMAGO | Perforaciones Marinas del Golfo S.A. Mexico | | | | Details |
| PERML | Permeability Log | | | | Details |
| PermP | Permanent-Packer | | | | Details |
| perp | perpendicular | | | | Details |
| pers | personnel | | | | Details |
| PERSERO | PT Perusahaan Gas Negara Indonesia | | | | Details |
| PERT | performance evaluation and review technique | | | | Details |
| PERTAMINA | Perusahaan Pertambangan Minyak dan Gas Bumi Negara (Indonesian State Oil and Gas Enterprise) Indonesia | | | | Details |
| PERUPETRO | Peru Petro S.A. Peru | | | | Details |
| PETRESA | Petroquimica Espanola, S.A. Spain | | | | Details |
| petrf | petroliferous | | | | Details |
| PETROBANGLA | Bangladesh Oil, Gas & Mineral Corporation Bangladesh | | | | Details |
| Petrobel | Belayim Petroleum Company | | | | Details |
| PETROBEL | Belayim Petroleum Co. Egypt | | | | Details |
| PETROBRAS | Petroleo Brasileiro, S.A. Brazil | | | | Details |
| PETROCAN | Petroleos de Canarias Spain | | | | Details |
| petrochem | petrochemical | | | | Details |
| PETROCI | Societe Nationale d’Operations Petrolieres de la Cote d’Ivoire Cote d’Ivoire | | | | Details |
| PETRO-COMMERCIAL | Empresa Estatal de Commercializacion y Transporte de Petroles del Ecuador Ecuador | | | | Details |
| PETRO-ECUADOR | Petroleos de Ecuador Ecuador | | | | Details |
| PetroFinance | Petroleum Finance Company | | | | Details |
| PETROGAB | Societe Nationale Petroliere -PETROGAB Gabon | | | | Details |
| PETROGAL | Petroleos de Portugal Portugal | | | | Details |
| PETROGAS | Petroleum Gas Co. Egypt | | | | Details |
| PETROGUIN | National Petroleum Co. of Guinea-Bissau (formerly PETROMINAS) Guinea-Bissau | | | | Details |
| PETRO-INDUSTRIAL | Empresa Estatal de Industrializacion de Petroles del Ecuador Ecuador | | | | Details |
| PETROJAM | Petroleum Corporation of Jamaica Jamaica | | | | Details |
| PETROJET | Petroleum Projects and Technical Consultations Co. Egypt | | | | Details |
| Petrokemya | Arabian Petrochemical Company | | | | Details |
| PETROKEMYA | Arabian Petrochemical Co. Saudi Arabia | | | | Details |
| PETROL | Petrol, A Slovene Oil Company Slovenia | | | | Details |
| PETROM | Petrom RA Romania | | | | Details |
| PETROMED | Petroleos del Mediterraneo Spain | | | | Details |
| PETROMIN | General Petroleum and Mineral Organization Saudi Arabia | | | | Details |
| PETROMINAS | Empresa Nacional de Pesquisa e Exploracao Petroliferas e Mineras EP (now PETROGUIN) Guinea-Bissau | | | | Details |
| PETROMOC | Empresa Nacional Petroles de Moçambique Mozambique | | | | Details |
| PETRON | Petron Corporation (PNOC/Saudi Aramco partnership) Philippines | | | | Details |
| PETRONAS | Petroliam Nasional Bhd. Malaysia | | | | Details |
| PETRONET | Petronet India ltd. India | | | | Details |
| PETRONIC | Empresa Nicaraguense del Petroleo Nicaragua | | | | Details |
| PETRONOR | Petroleos del Norte, S.A. Spain | | | | Details |
| PETROPAR | Petroleos Paraguayos Paraguay | | | | Details |
| PETROPERU | Petroleos del Peru Peru | | | | Details |
| PETRO-PRODUCTION | Empresa Estatal de Exploration y Produccion de Petroleos del Ecuador Ecuador | | | | Details |
| PETROQUISA | Petrobras Quimica S.A. Brazil | | | | Details |
| PETROREP | Societe Petroliere de Recherches Dans La Region Parisienne France | | | | Details |
| PETROSEN | Societe Nationale des Petroles du Senegal Senegal | | | | Details |
| PETROSUR | Petroleos del Sur S.A. Spain | | | | Details |
| PETROTRIN | Petroleum Company of Trinidad & Tobago Ltd. Trinidad & Togago | | | | Details |
| PETRO-Vietnam | Oil and Gas Company Vietnam VIETNAM | | | | Details |
| PETROZAIRE | Entreprise Petroliere du Zaire Zaire | | | | Details |
| PETRP | Petrophysical Evaluation Report | | | | Details |
| PFC GR | PFC Gamma Ray | | | | Details |
| PFRACT | prefractionator | | | | Details |
| PFREC | Perforation Record Log | | | | Details |
| PGOR | Produced Gas Oil Ratio | | | | Details |
| PIR | Post Implementation Review | | | | Details |
| PIRC | PI Research Center | | | | Details |
| PIRINC | Petroleum Industry Research Foundation, Inc. | | | | Details |
| PJR | Post Job Report | | | | Details |
| Pkr | Packer | | | | Details |
| Plan. har. | Planulina harangensis | | | | Details |
| PLASR | plaster | | | | Details |
| plngr | plunger | | | | Details |
| PLRC | Professional Ladder Review Committee (old designation for CLRC) | | | | Details |
| PLTRE | Production Logging Tool Report | | | | Details |
| PMR | Personnel Movement Report | | | | Details |
| PMRF | Plant Modification Request Form | | | | Details |
| PNR | please note and return | | | | Details |
| POR | Density Porosity Log | | | | Details |
| POR | Porosity | | | | Details |
| por | porosity, porous | | | | Details |
| porc | porcelaneous | | | | Details |
| porc | porcion | | | | Details |
| PORMINER | Promotora de Minmercados S.A. Spain | | | | Details |
| poro | porous , porosity | | | | Details |
| POROH | Porosity from Open Hole logs | | | | Details |
| PORT | Pressure Operated Reference Tool | | | | Details |
| port | portable | | | | Details |
| PORTGAS | Sociedad de Producao e Distribucion de Gas S.A. Portugal | | | | Details |
| POSFR | Post Fracture Report | | | | Details |
| POT/WTR | potable water | | | | Details |
| pour | ASTM pour point(ASTM method) | | | | Details |
| POWERS | Parallel Oil Water and Gas Reservoir Simulator | | | | Details |
| PPKR | Production Packer | | | | Details |
| PPR | Post Project Report | | | | Details |
| Ppr | pseudo-reduced pressure | | | | Details |
| PPROA | Panhandle Producers and Royalty Owners Association | | | | Details |
| PQR | procedure qualification record | | | | Details |
| PR | Purchase Request | | | | Details |
| PR | Productivity Ratio | | | | Details |
| PR | Penetration Rate | | | | Details |
| PR | Purchase Request or Profit Rate i.e. interest rate | | | | Details |
| PR | PUERTO RICO | | | | Details |
| PR | pressure | | | | Details |
| pr | poor | | | | Details |
| pr | P.OOr | | | | Details |
| Pr | Average Reservoir Pressure | | | | Details |
| pr | pair | | | | Details |
| PR | polished rod | | | | Details |
| PR | pressure recorder | | | | Details |
| PR | public relations | | | | Details |
| PR | purchasing request | | | | Details |
| pr op | present operations | | | | Details |
| Pr Temp | Precision Temperature | | | | Details |
| PR&T | pull(ed) rods and tubing | | | | Details |
| PR2 | Testing regime to API6A Annex F | | | | Details |
| PRA | Production Reporting & Allocation | | | | Details |
| PRC | Petroleum Reserves Company | | | | Details |
| PRC | pressure recorder control | | | | Details |
| PRC NEU | PFC Neutron | | | | Details |
| prcst | precast | | | | Details |
| PRD | pressure relief device | | | | Details |
| prd | period | | | | Details |
| PRE | pitting resistance equivalent number | | | | Details |
| Pre | Camb Precambrian | | | | Details |
| PREC | Perforation Record | | | | Details |
| PRECIP | precipitator | | | | Details |
| predom | predominant | | | | Details |
| prefab | prefabricated | | | | Details |
| prehtr | preheater | | | | Details |
| prelim | preliminary | | | | Details |
| prem | premium | | | | Details |
| prep | preparing | | | | Details |
| Prep | prepare, preparing, preparation | | | | Details |
| Pres | Reservoir Pressure | | | | Details |
| PRESS | Pressure Report | | | | Details |
| press | pressure | | | | Details |
| prest | prestressed | | | | Details |
| prev | prevent, preventive | | | | Details |
| PREV | previous | | | | Details |
| PREV | DA previous daily average | | | | Details |
| PRF | Primary Reference Fuel | | | | Details |
| PRI | PUERTO RICO | | | | Details |
| pri | primary | | | | Details |
| PRI | Petroleum Recovery Institute | | | | Details |
| prin | principal | | | | Details |
| priv | privilege | | | | Details |
| PRK | KOREA, NORTH | | | | Details |
| PRL | Pipe Recovery Log | | | | Details |
| PRL | Pipe Recovery | | | | Details |
| prly | pearly | | | | Details |
| PRM | Permanent Reservoir Monitoring | | | | Details |
| PRM | PRISM® | | | | Details |
| PRMS | Petroleum Resource Management Systems (see comment) | | | | Details |
| PRMS | Permeability Spinner survey | | | | Details |
| prmt | permit | | | | Details |
| PRN | Tester valves (Halliburton) | | | | Details |
| prncpl-lss | principal lessee(s) | | | | Details |
| PRO | Procedure | | | | Details |
| pro | prorated | | | | Details |
| PROAS | Productos Asfalticos S.A. Spain | | | | Details |
| prob | probable(ly) | | | | Details |
| proc | process | | | | Details |
| PROD | Production Log | | | | Details |
| prod | produced, producing, production | | | | Details |
| Prod | Production in company name | | | | Details |
| prod | produce(ed)(ing)(tion), product(s) | | | | Details |
| PRODESA | Productos de Estireno, S.A. de C.V. Mexico | | | | Details |
| prog | progress | | | | Details |
| proj | projected | | | | Details |
| proj | project(ed)(ion) | | | | Details |
| PROP | property | | | | Details |
| prop | proportional | | | | Details |
| prop | propose(ed) | | | | Details |
| PROPEL | Produtos de Petroleo Lda. Portugal | | | | Details |
| prot | protection | | | | Details |
| PROTE | Production Test Report | | | | Details |
| Protero | Proterozoic | | | | Details |
| PROTEXA | Construcciones Protexa, S.A. de C.V. Mexico | | | | Details |
| Prov | provincial | | | | Details |
| PROX | Proximity Log | | | | Details |
| PROX | Proximity | | | | Details |
| PROX/ML | Proximity Minilog | | | | Details |
| PROXL | Proximity Log | | | | Details |
| PRP | premature release of packer | | | | Details |
| prpl | purple | | | | Details |
| PRPs | Potentially Responsible Parties | | | | Details |
| PRPT | preparing to take potential test | | | | Details |
| PRR | Product Removal Record | | | | Details |
| PRS | Pipe Racking System (rig) | | | | Details |
| prsm | prism(atic) | | | | Details |
| PRSM | PRISM® Log | | | | Details |
| PRSRE | Pressure Gauge Report | | | | Details |
| PRT | Platinum Resistance Thermometer | | | | Details |
| PRT | PORTUGAL | | | | Details |
| prtgs | partings | | | | Details |
| PRV | Pressure Relief Valve | | | | Details |
| PRV | Pressure Reducing Valve | | | | Details |
| PRXL | Proximity | | | | Details |
| PRY | PARAGUAY | | | | Details |
| PTR | Pore Throat Radius (from MICP) | | | | Details |
| PTR | pulling tubing and rods | | | | Details |
| PTRR | Post tax Rate of Return | | | | Details |
| PUR | Plant Upset Report | | | | Details |
| PURCH | purchasing | | | | Details |
| PURF | purification | | | | Details |
| purp | purple | | | | Details |
| PUWER | Provision and Use of Work Equipment Regulations | | | | Details |
| PVR | plant(pressure) volume reduction | | | | Details |
| PVTRE | Pressure Volume Temperature Report | | | | Details |
| PWR | Practises Worth Replicating | | | | Details |
| PWR | Geopressure Wildcat Redrill | | | | Details |
| PWR | power | | | | Details |
| PWRI | Produced Water Re-injection | | | | Details |
| PWRI | Power Water Re-Injection | | | | Details |
| pyr | pyrite, pyritic | | | | Details |
| pyr | pyrite | | | | Details |
| pyrbit | pyrobitumen | | | | Details |
| pyrclas | pyroclastic | | | | Details |
| Qatargas | Qatar Liquefied Gas Company | | | | Details |
| QATARGAS | Qatar Liquified Gas Co. (consortium) Qatar | | | | Details |
| QCR | Quality Control Report | | | | Details |
| QDRNT | quadrant | | | | Details |
| QRA | Quantitative Risk Assessment | | | | Details |
| QRA | Quality return on assets | | | | Details |
| QRA | qualitative risk assessment | | | | Details |
| QRC | quick ram change | | | | Details |
| QRE | Qualified Reservoir Engineer | | | | Details |
| QRU | Quick Rig Up | | | | Details |
| qry | quarry | | | | Details |
| QTHERM | Queensland Department of Energy Australia | | | | Details |
| qtr | quarter | | | | Details |
| QUIMAR | Quimica del Mar, S.A. Mexico | | | | Details |
| R & D | research and development | | | | Details |
| R & T | rods and tubing | | | | Details |
| R H DIP | 4 Arm High Resolution Diplog | | | | Details |
| R&D | research and development | | | | Details |
| R&D | Research & Development | | | | Details |
| R&L | road & location | | | | Details |
| R&LC | road & location complete | | | | Details |
| R&O | rust and oxidation | | | | Details |
| R&R | read and record | | | | Details |
| R&W | reservoir and wells | | | | Details |
| R(16”) | resistivity as recorded from | | | | Details |
| R.O. | Red Oak | | | | Details |
| R/A | regular acid | | | | Details |
| R/A Grd | Radiation Guard | | | | Details |
| R/A Tra | Radioactive Tracer | | | | Details |
| R/B | Rack back | | | | Details |
| R/D | Rig-down | | | | Details |
| R/P | reserves to production ratio | | | | Details |
| R/U | Rig up | | | | Details |
| R1 | MARSHALL ISLANDS | | | | Details |
| RA | Recreation Areas | | | | Details |
| RA | right angles | | | | Details |
| RA | radioactive | | | | Details |
| RA | right angle | | | | Details |
| RAB | Resisitivity at Bit;Azimuthal Laterolog - Gamma Ray (aka GVR) | | | | Details |
| RAC | Ratio Curves | | | | Details |
| RAC | Radiation Advisory Committee | | | | Details |
| RACI | Responsible / Accountable / Consulted / Informed | | | | Details |
| RACT | Reasonable Available Control Technology | | | | Details |
| RACTR | reactor | | | | Details |
| RAD | Rapid Application Development | | | | Details |
| RAD | radioactive densiometer Fluid density measuring device | | | | Details |
| rad | radical | | | | Details |
| rad | radiological | | | | Details |
| rad | radius | | | | Details |
| RADEEC | Regie Autonome Intercommunal de Distribution d’Eau et d’Electricité de la Chaouia | | | | Details |
| RADT | radiant | | | | Details |
| radtn | radiation | | | | Details |
| RAF-B | Ras Abu Fontas “B” | | | | Details |
| RAG | Rohol-Aufsuchungs AG Austria | | | | Details |
| RAGL | raw gas lift | | | | Details |
| RAID | Redundant Array of Inexpensive (or Independent) Disks | | | | Details |
| RALOG | running radioactive log | | | | Details |
| RAM | Risk Assessment Matrix | | | | Details |
| RAM | Reliability, Availability, and Maintainability | | | | Details |
| RAM | Random Access Memory | | | | Details |
| RAMCO | Ramco Energy plc UK | | | | Details |
| RAMS | Remote Are Medical Services | | | | Details |
| RAMUR | High Resolution Radon Multiple Removal (CGGVeritas) | | | | Details |
| Rang | Ranger | | | | Details |
| RAP | Rolling Activity Plan | | | | Details |
| RasGas | Ras Laffan Liquefied Natural Gas Company | | | | Details |
| RASGAS | Ras Laffan LNG Co. (consortium) Qatar | | | | Details |
| RASGR | Rudist, Algal, Skeletal, Grainstone-Rudstone | | | | Details |
| RASHPETC | Rashed Oil Company Egypt and others | | | | Details |
| RASIOM | Raffinerie Siciliane Olii Minerali Italy | | | | Details |
| RAT | Radioactive Tracer | | | | Details |
| RAWS | Raw Stacks VSP Log | | | | Details |
| RAY | Optimized Grey Scales | | | | Details |
| RAYP | Additional Playback | | | | Details |
| RAZ | Rich Azimuth | | | | Details |
| Razi | al- The Saudi Methanol Company | | | | Details |
| RB | Reservoir Barrel (volume in bbl in reservoir condition) | | | | Details |
| RB | Rig Back | | | | Details |
| RB | Rack back | | | | Details |
| RB | Reservoir Barrel | | | | Details |
| RB | SERBIA | | | | Details |
| RB | reservoir barrels | | | | Details |
| RB | rock bit | | | | Details |
| RB | rotary bushing | | | | Details |
| RBA | Risk Based Audit | | | | Details |
| RBG | Richtbohrgarnitur | | | | Details |
| RBGL | Riser Based Gas Lift | | | | Details |
| RBI | Risk Based Inspection | | | | Details |
| RBLR | reboiler | | | | Details |
| Rbls | rubber balls | | | | Details |
| RBM | rotary bushing measurement | | | | Details |
| R-BOP | rotating BOP | | | | Details |
| RBP | Retrievable Bridge Plug | | | | Details |
| rbr | rubber | | | | Details |
| RBSO | rainbow show of oil | | | | Details |
| RBSOF | rubber ball sand oil frac | | | | Details |
| RBSWF | rubber ball sand water frac | | | | Details |
| RC | Reservoir Charactrization | | | | Details |
| RC | Route Cause | | | | Details |
| RC | rapid curing | | | | Details |
| RC | Red Cave | | | | Details |
| RC | remote control | | | | Details |
| RC | reverse circulation | | | | Details |
| RC | running casing | | | | Details |
| RCA | Root Cause Analysis | | | | Details |
| RCAL | Routine Core Analysis | | | | Details |
| RCC | Revolutionary Command Council | | | | Details |
| RCD | Rotating Control Device | | | | Details |
| RCFA | root cause failure analysis | | | | Details |
| RCH | Rotating Control Head | | | | Details |
| RCI | Reservoir Characterization Instrument | | | | Details |
| RCI | Reservoir Charactization Instrument (logging tool) | | | | Details |
| RCJB | ReCirculating Junk Basket | | | | Details |
| RCKST | Rig Checkshot | | | | Details |
| RCL | Retainer Correlation Log | | | | Details |
| RCM | Reclaimed concrete material | | | | Details |
| RCM | Reliability Centred Maintenance | | | | Details |
| RCM | recirculating mixer | | | | Details |
| RCnBR | Rudist, Caprinid, Boundstone-Rudstone | | | | Details |
| RCO | returning circulation oil | | | | Details |
| RCOR | Rotary Sidewall Coring Tool | | | | Details |
| RCOR | Rotary Coring Tool | | | | Details |
| RCP | resin coated proppant | | | | Details |
| RCpBF | Rudist, Caprotinid, Boundstone | | | | Details |
| RCPT | receptacle | | | | Details |
| RCR | Remote Component Replacement (Tool) | | | | Details |
| RCR | Remote Component Replacement(Tool) | | | | Details |
| RCR | Ramsbottom Carbon Residue | | | | Details |
| RCR | reverse circulation rig | | | | Details |
| RCRA | Recourse Conservation and Recovery Act | | | | Details |
| RCRA | Resource Conservation and Recovery Act | | | | Details |
| RCS | resin coated sand | | | | Details |
| RCSC | Reservoir Characterization and Simulation Conference | | | | Details |
| RCSSP | resin coated sand slurry pack | | | | Details |
| RCT | radial cutting torch, a tubing cutting tool that uses thermite plasma | | | | Details |
| RCTN | reaction | | | | Details |
| RCU | Remote Control Unit | | | | Details |
| RCVR | receiver | | | | Details |
| RCVY | recovery | | | | Details |
| RCYL | recycle | | | | Details |
| RD | Rupture Disk | | | | Details |
| RD | Relative Density | | | | Details |
| RD | Rig Down | | | | Details |
| RD | redrill | | | | Details |
| RD | redrilled | | | | Details |
| RD | rigged(ing) down | | | | Details |
| rd | road | | | | Details |
| rd | round | | | | Details |
| Rd | Bds red beds | | | | Details |
| rd | thd round thread | | | | Details |
| Rd Fk | Red Fork | | | | Details |
| Rd Pk | Red Peak | | | | Details |
| RD&D | research, development, and demonstration | | | | Details |
| RDB | rotary drive bushing | | | | Details |
| RDB-GD | rotary drive bushing to ground | | | | Details |
| RDBMS | Relational DBMS | | | | Details |
| RDCR | reducer | | | | Details |
| rdd | rounded | | | | Details |
| RDF | Reservoir Drilling Fluid | | | | Details |
| RDFN | rig down for night | | | | Details |
| RDL | Reservoir Data Log | | | | Details |
| RDMO | Rig Down Move Out | | | | Details |
| RDMO | rig down, move off or out | | | | Details |
| RDMO | rigged down, moved out | | | | Details |
| RDS | Reservoir Development Sevises | | | | Details |
| RDS | Reservoir Development Study | | | | Details |
| RDS | Remote Degassing Station | | | | Details |
| RDS | reservoir description service | | | | Details |
| RDSU | rigged-down swabbing unit | | | | Details |
| RDT | Rapid Development Team | | | | Details |
| RDT | Reservoir Description Tool | | | | Details |
| rdtp | round trip | | | | Details |
| RDX | perforating charge explosive Cyclotrimethaylenetrinitramine | | | | Details |
| RE | Reply | | | | Details |
| RE | Reference (in letter writting) | | | | Details |
| RE | Reservoir Engineer | | | | Details |
| re | Drainage Radius in equations | | | | Details |
| RE | REUNION | | | | Details |
| re | reservoir drainage radius | | | | Details |
| REA | Ream | | | | Details |
| REABS | reabsorber | | | | Details |
| reacd | reacidize(ed)(ing) | | | | Details |
| React | reaction(ed) | | | | Details |
| rebar | reinforcing bar | | | | Details |
| REC | Recommendation | | | | Details |
| rec | recovered | | | | Details |
| rec | recommend | | | | Details |
| rec | record(er)(ing) | | | | Details |
| rec | recover(ed)(ing), recovery | | | | Details |
| recd | received | | | | Details |
| RECIP | reciprocate | | | | Details |
| recip | reciprocate(ing) | | | | Details |
| recirc | recirculate | | | | Details |
| recomp | recomplete(ed)(ion) | | | | Details |
| RECOMP | recompressor | | | | Details |
| recond | recondition(ed) | | | | Details |
| recp | receptacle | | | | Details |
| rect | rectangle, rectangular | | | | Details |
| rect | rectifier | | | | Details |
| recy | recycle | | | | Details |
| RED | restriction enhancement drill (under reamer) | | | | Details |
| red | reducing, reducer | | | | Details |
| red | bal reducing balance | | | | Details |
| redrld | redrilled | | | | Details |
| REEF | Refrigerated | | | | Details |
| ref | reference | | | | Details |
| ref | refine(ed)(er)(ry) | | | | Details |
| REFCO | Abu Dhabi Refining Company | | | | Details |
| refg | refining | | | | Details |
| refl | reflection | | | | Details |
| refl | reflux | | | | Details |
| REFMR | reformer | | | | Details |
| REFOO | re-evaluation for overoptimism | | | | Details |
| reform | reformate(er)(ing) | | | | Details |
| REFR | Refracture | | | | Details |
| refr | refraction, refractory | | | | Details |
| REFRIG | refrigerator(rant)(tion) | | | | Details |
| reg | register | | | | Details |
| reg | regular, regulator | | | | Details |
| REGANOSA | Regasification subsidiary of SONATRACH Algeria | | | | Details |
| regen | regenerator | | | | Details |
| reinf | reinforce(ed)(ing)(ment) | | | | Details |
| reinf | conc reinforced concrete | | | | Details |
| rej | reject | | | | Details |
| rej’n | rejection | | | | Details |
| Rek | Reklaw | | | | Details |
| rel | relay | | | | Details |
| rel | release(ed) | | | | Details |
| REL | running electric log | | | | Details |
| reloc | relocate(ed) | | | | Details |
| rem | remains | | | | Details |
| rem | remedial | | | | Details |
| Ren | Renault | | | | Details |
| rent | rental | | | | Details |
| Reo. | bath. Reophax bathysiphoni | | | | Details |
| REOR | Reorientation Log | | | | Details |
| rep | repair(ed)(ing)(s) | | | | Details |
| rep | replace(ed) | | | | Details |
| rep | report | | | | Details |
| REPE | Re-Perforation Report | | | | Details |
| RE-PE | Re-Perforation Report | | | | Details |
| REPEAT | Reservoir Engineering Prospect Evaluation Automated Tool (Shell Houston software) | | | | Details |
| reperf | reperforate | | | | Details |
| reperf | reperforated | | | | Details |
| repl | replace(ment) | | | | Details |
| REPSOL | Repsol S.A. (formerly “Hispanoil”)(see Repsol-YPF) Spain | | | | Details |
| REPSOL-YPF | Former Hispanoil (Spain) & YPF (Argentina) Spain | | | | Details |
| REQ | request | | | | Details |
| req | requisition | | | | Details |
| reqd | required | | | | Details |
| reqmt | requirement | | | | Details |
| RES | Reservoir | | | | Details |
| res | resistivity | | | | Details |
| res | research | | | | Details |
| res | reserve(ation) | | | | Details |
| res | resistance, resistivity, resistor | | | | Details |
| Res. | O. N. Research Octane Number | | | | Details |
| RESAN | Reservoir Analysis | | | | Details |
| RESEV | Reservoir Evaluation | | | | Details |
| RESFL | Reservoir Fluid | | | | Details |
| RESI | Resistivity Log | | | | Details |
| resid | residual, residue | | | | Details |
| RESIS | resistor(s) | | | | Details |
| RESISA | Resinas Sinteticas S.A. Spain | | | | Details |
| RESL | Reservoir Log | | | | Details |
| RESOI | Residual Oil | | | | Details |
| ret | retainer | | | | Details |
| ret | retain(er)(ed)(ing) | | | | Details |
| ret | return | | | | Details |
| Ret DST | Retainer Dichtstück | | | | Details |
| Ret. | Retainer | | | | Details |
| retd | returned | | | | Details |
| RetDST | Retainer Dichtstock | | | | Details |
| retr | retrievable | | | | Details |
| retr | ret retrievable retainer | | | | Details |
| RETV | Retainer Valve | | | | Details |
| REU | REUNION | | | | Details |
| REV | reverse | | | | Details |
| rev | reverse (ed) (ing) | | | | Details |
| rev | reverse(ed) | | | | Details |
| rev | revise(ed)(ing)(ion) | | | | Details |
| rev | revolution(s) | | | | Details |
| rev out | reverse out | | | | Details |
| rev/O | reversed out | | | | Details |
| REZ | Renewable Energy Zone (United Kingdom) | | | | Details |
| RF | Recovery Factor | | | | Details |
| RF | raised face | | | | Details |
| RF | rig floor | | | | Details |
| RFC | Rotating Flow Converter | | | | Details |
| RFC | Ready for Commissioning | | | | Details |
| RFF | Resources for the Future | | | | Details |
| RFFE | raised face, flanged end | | | | Details |
| RFFG | Reserve Fund for Future Generations | | | | Details |
| RFG | roofing | | | | Details |
| RFG/BD | refrigeration building | | | | Details |
| RFI | Request for Information | | | | Details |
| RFLCT | reflect(ed)(ing)(tion) | | | | Details |
| RFLNG | Ready for Liquefied Natural Gas | | | | Details |
| RFLNG | Ready for LNG | | | | Details |
| RFMTS | Repeat Formation Tester | | | | Details |
| RFP | Request For Proposal | | | | Details |
| RFQ | Request For Quotation | | | | Details |
| RFQ | Request For Quote | | | | Details |
| RFQL | Repeat Formation Tester Quicklook | | | | Details |
| RFR | ready for rig | | | | Details |
| RFS | Request For Service | | | | Details |
| RFSF | raised face, smooth finish | | | | Details |
| RFSO | raised face, slip on | | | | Details |
| RFSU | Ready For Start-Up | | | | Details |
| RFSU | Ready For Start Up | | | | Details |
| RFT | Repeat Formation Tester | | | | Details |
| RFT | See Repeat Formation Tester | | | | Details |
| RFT | RFT | | | | Details |
| RFTRE | Repeat Formation Tester Report | | | | Details |
| RFTS | Repeat Formation Tester Sample | | | | Details |
| RFV | radial flow valve | | | | Details |
| RFWN | raised face, weld neck | | | | Details |
| RG | Rounded Gauge | | | | Details |
| RG | raw gas | | | | Details |
| rg | ring | | | | Details |
| RG | ring groove | | | | Details |
| RGB | Red Green Blue | | | | Details |
| RGDS | ReGarDS | | | | Details |
| RGE | RanGE | | | | Details |
| rgh | rough | | | | Details |
| RGTR | register | | | | Details |
| RH | Residency House | | | | Details |
| RH | rat hole | | | | Details |
| RH | relative humidity | | | | Details |
| RH | right hand | | | | Details |
| RHD | righthand door | | | | Details |
| rheo | rheostat | | | | Details |
| RHM | rat hole mud | | | | Details |
| RHN | Rockwell hardness number | | | | Details |
| RHOB | Bulk Density | | | | Details |
| RHT | Right Hand Turn | | | | Details |
| RI | Resistivity index | | | | Details |
| RI | SERBIA | | | | Details |
| RI | Rhode Island | | | | Details |
| RI | royalty interest | | | | Details |
| Rib | ribbon sand | | | | Details |
| Rier | Rierdon rig | | | | Details |
| RIGMO | Rig Move | | | | Details |
| RIH | Run In Hole | | | | Details |
| RIH | running pipe in the hole | | | | Details |
| RIH | ran in hole | | | | Details |
| RIL | Riliance Company® | | | | Details |
| RIL | Reliance Industries limited | | | | Details |
| RIL | red indicating lamp | | | | Details |
| RIMS | Riser Integrity Monitoring System | | | | Details |
| rinv | Radius of investigation | | | | Details |
| RISC | Reduced Instruction Set Computer | | | | Details |
| RIT | Resistivity Imaging | | | | Details |
| RITT | Riser Insertion Tube (Tool) | | | | Details |
| riv | rivet | | | | Details |
| RIZ | resistivity invaded zone | | | | Details |
| RJ | ring joint | | | | Details |
| RJFE | ring joint, flanged end | | | | Details |
| RK | rack | | | | Details |
| rk | rock | | | | Details |
| RKB | Rotary Kelly Bushing (a datum for measuring depth in an oil well) | | | | Details |
| RKB | Rotary Kelly Bushings | | | | Details |
| RKB | reference Kelly bushing or rotary Kelly bushing | | | | Details |
| RKB | rotary kelly bushing | | | | Details |
| RKB=BRT | Rotary Kelly Bushing = (below rotary table) | | | | Details |
| rky | rocky | | | | Details |
| RL | Relief line | | | | Details |
| RL | random lengths | | | | Details |
| rlf | relief | | | | Details |
| rlg | railing | | | | Details |
| RLOF | Rock Load-out Facility | | | | Details |
| rls(d)(ing) | release(ed)(ing) | | | | Details |
| RLT | RigLess testing | | | | Details |
| RLT | Reservoir Limit Test | | | | Details |
| RLWI | Rig Less Well Intervention | | | | Details |
| RLWI | Riserless Light Well Intervention | | | | Details |
| rly | relay | | | | Details |
| RM | Rig Move | | | | Details |
| RM | Repair & Maintenance | | | | Details |
| RM | Risk Management | | | | Details |
| RM | MALI | | | | Details |
| RM | MARSHALL ISLANDS | | | | Details |
| RM | Resistivity of Mud | | | | Details |
| RM | Rollenmeißel | drilling bit | | | Details |
| rm | ream | | | | Details |
| Rm | resistivity of mud | | | | Details |
| rm | room | | | | Details |
| RMA | Radioactive Mineral Analysis | | | | Details |
| RMC | Mud Cake Resistivity | | | | Details |
| rmd | reamed | | | | Details |
| RMDB | Reservoir Management Data Base | | | | Details |
| RMF | Mud Filtrate Resistivity | | | | Details |
| Rmf | resistivity, mud filtrate | | | | Details |
| rmg | reaming | | | | Details |
| RMLC | Request for Mineral Land Clearance | | | | Details |
| rmn | remains | | | | Details |
| RMOGA | Rocky Mountain Oil and Gas Association | | | | Details |
| RMP | Reservoir Management Plan | | | | Details |
| RMP | Reservoir Monitoring Program | | | | Details |
| RMP | Resource Management Plan | | | | Details |
| RMS | Ratcheting Mule Shoe | | | | Details |
| RMS | Request for Material or Service | | | | Details |
| RMS | Riser Monitoring System | | | | Details |
| RMS | root mean square | | | | Details |
| rmv(l) | remove(al)(able) | | | | Details |
| RN | SAINT MARTIN (FRENCH PART) | | | | Details |
| RNA | Random Noise Attenuation | | | | Details |
| RND | National Democratic Rally | | | | Details |
| rnd | rounded | | | | Details |
| rng | running | | | | Details |
| RNI | Rassemblement National des Independants | | | | Details |
| RNMO | Residual Normal Move Out | | | | Details |
| RNR | Rate Not Reported | | | | Details |
| RNT | RNT Log | | | | Details |
| RO | Ring Out | | | | Details |
| Ro | Vitrinite reflectance, in oil | | | | Details |
| RO | ROMANIA | | | | Details |
| RO | reversed out | | | | Details |
| ro | rose | | | | Details |
| Ro | Rosiclare sand | | | | Details |
| ROA | Return on Assets | | | | Details |
| ROACE | Return on Average Capital Employed | | | | Details |
| ROAR | Regional Review | | | | Details |
| ROB | Remaining On Board | | | | Details |
| Rob | Robulus | | | | Details |
| ROC | Reference Our Cable....(date) | | | | Details |
| ROC | Retention Of Cuttings (Mud term) | | | | Details |
| ROCE | Return on capital employed (same as ROACE, See ROACE) | | | | Details |
| ROCE | return on capital employed | | | | Details |
| ROCK | Retention Of Critical Knowledge | | | | Details |
| ROCT | Rotary Coring Tool | | | | Details |
| ROD | Record of Decision | | | | Details |
| Rod | Rodessa | | | | Details |
| ROE | Radius of Exposure | | | | Details |
| ROF | rich oil fractionator | | | | Details |
| ROGL | rotative gas lift | | | | Details |
| RoHS | Restriction of Hazard Substances | | | | Details |
| ROI | Return On Investment | | | | Details |
| Rok | remove | | | | Details |
| Rok | rock | | | | Details |
| ROL | Re-Order Level | | | | Details |
| ROL | rig on location | | | | Details |
| ROM | Read Only Memory | | | | Details |
| ROM | rough order of magnitude | | | | Details |
| ROM | run of mine | | | | Details |
| RON | Research Octane Number | | | | Details |
| ROP | Rate of Penetration, Rate of Penetration | | | | Details |
| ROP | Rate of Penetration | | | | Details |
| ROPE | really overbalanced perforating, see EOP or extreme overbalanced perforating | | | | Details |
| ROPME | Regional Organization for Protection of Marine Environment | | | | Details |
| ROR | Rate Of Return (Economics) | | | | Details |
| ROR | rate of return | | | | Details |
| RORO | Roll On Roll Off ship | | | | Details |
| ROS | Remaining Oil Saturation (reservoir) | | | | Details |
| ROS | residual oil saturation | | | | Details |
| ROS | Remaining Oil Saturation | | | | Details |
| ROS | remote operating system(station) | | | | Details |
| ROSKO-MNEDRA | Ministry of Fuel & Energy for the Russian Federation Russia | | | | Details |
| ROSS | Remotely Operated Sliding Sleeves | | | | Details |
| ROT | Remote Operated Tool | | | | Details |
| rot | rotary, rotate, rotator | | | | Details |
| ROTLX | Reference Our TeLeX ...(date) | | | | Details |
| ROU | Radius Of Uncertainty | | | | Details |
| ROU | ROMANIA | | | | Details |
| ROV | Remotely Operated Vehicle, used for subsea construction and maintenance | | | | Details |
| ROV | Remotely Operated Vehicle | | | | Details |
| ROV | remote operated vehicle, usually an unmanned underwater work vehicle | | | | Details |
| ROV/WROV | Remotely Operated Vehicle/WorkClass Remotely Operated Vehicle, used for subsea construction and maintenance | | | | Details |
| ROW | Right-of-Way | | | | Details |
| ROW | Right of Way | | | | Details |
| ROWS | Remote Operator Workstation | | | | Details |
| roy | royalty | | | | Details |
| ROZ | Recoverable Oil Zone | | | | Details |
| ROZ | residual oil zones | | | | Details |
| RP | Recommended Practice | | | | Details |
| RP | Receiver Point | | | | Details |
| RP | Reserves/production ratio | | | | Details |
| RP | PHILIPPINES | | | | Details |
| RP | rock pressure | | | | Details |
| R-PAT | Regional Petroleum Association | | | | Details |
| RPC | Refineria de Petroleo Concon S.A. Chile | | | | Details |
| RPCM | Ring Pair Corrosion Monitoring | | | | Details |
| RPD | Reserves and Production Division of the EIA | | | | Details |
| RPE | Respiratory Protective Equipment | | | | Details |
| RPF | Rudist, Peloid Floatstone | | | | Details |
| RPI | Reciprocal Productivity Index | | | | Details |
| RPI | Research Planning Institute | | | | Details |
| RPL | Reliance Petroleum Ltd. India | | | | Details |
| RPM | Revs. Per Minute | | | | Details |
| RPM | Revolutions Per Minute, (Rotations Per Minute) | | | | Details |
| RPM | Relative Permeability Modifier | | | | Details |
| RPM | Reservoir Performance Monitoring | | | | Details |
| RPM | Rotations Per Minute | | | | Details |
| RPM | Reservoir Performance Monitor | | | | Details |
| rpm | revolutions per minute | | | | Details |
| rpmn | repairman | | | | Details |
| RPP | Respiratory Protection Program | | | | Details |
| RPP | retail pump price | | | | Details |
| RPR | Rudist, Peloid Rudstone | | | | Details |
| RPRT | report | | | | Details |
| RPS | Revolution Per Second | | | | Details |
| rps | revolutions per second | | | | Details |
| Rpt | Report | | | | Details |
| rptd | report ed | | | | Details |
| rptd | reported | | | | Details |
| RQ | PUERTO RICO | | | | Details |
| RQ | Reportable Quantity | | | | Details |
| RQI | Reservoir Quality Index | | | | Details |
| RR | Rig Repair | | | | Details |
| RR | Ringraum | | | | Details |
| RR | Re-Run | | | | Details |
| RR | Rig Release | | | | Details |
| RR | railroad | | | | Details |
| RR | rig released | | | | Details |
| RR | Red River | | | | Details |
| RR | rigging rotary | | | | Details |
| RR&T | ran(running) rods and tubing | | | | Details |
| RRA | Recruitment and Retention Adjustments | | | | Details |
| RRC | Railroad Commission | | | | Details |
| RRC | Railroad Commission (Texas) | | | | Details |
| RRE | Rig Repair | | | | Details |
| RRM | Reserves Resource Matrix | | | | Details |
| RROCK | Routine Rock Properties Report | | | | Details |
| RRP | Reverse Rotation Prevention (in pumps) | | | | Details |
| RRP | recommended retail price | | | | Details |
| RRP | NV Rotterdam-Rijn Pijpleiding Mij Netherlands | | | | Details |
| RRR | Reserves Replacement Rate | | | | Details |
| RRR | Reserves Replacement Ratio | | | | Details |
| RRT | Reservoir Rock Type | | | | Details |
| RRT | Reservoir Rock Types | | | | Details |
| RS | Reversing and Spotting | | | | Details |
| RS | Rohrschneider | cutting tool | | | Details |
| RS | Rohrschuh | | | | Details |
| RS | solution gas oil ratio | | | | Details |
| Rs | Solution Gas Oil Ratio in situ | | | | Details |
| RS | RUSSIAN FEDERATION | | | | Details |
| RS | SERBIA | | | | Details |
| RS | rig service | | | | Details |
| RS | rig skidded | | | | Details |
| RS | rising stem(valve) | | | | Details |
| RSA | Reservoir Sampling Analysis | | | | Details |
| RSA | Resample | | | | Details |
| RSCP | Rachet-Set Compression Packer | | | | Details |
| RSCT | Rotary Sidewall Coring Tool | | | | Details |
| RSCT | Rotary Sidewall Coring | | | | Details |
| RSD | returnable steel drum | | | | Details |
| RSE | Rig Service | | | | Details |
| RSFR | Rudist, Skeletal, Floatstone-Rudstone | | | | Details |
| Rsi | Initial gas oil ratio | | | | Details |
| RSI | Repetitive strain injury | | | | Details |
| RSM | Response Surface Model | | | | Details |
| RSM | Riser Seal Mandrel | | | | Details |
| RSMD | resumed | | | | Details |
| RSMS | Road Safety Management System | | | | Details |
| rsns | resinous | | | | Details |
| RSO | Red Sea Oil Corpo-Ration | | | | Details |
| RSO | Red Sea Oil Corporation Tanzania | | | | Details |
| R-SP | recommended spare part | | | | Details |
| RSPA | Research and Special Programs Administration of the Department of Transportation | | | | Details |
| RSR | Rudist, Skeletal Rudstone | | | | Details |
| RSS | Rotary Steerable Systems (SLB - See comment) | | | | Details |
| RSS | Rig Site Survey | | | | Details |
| RSS | Rotary Steerable Systems | | | | Details |
| RSS | Rotary Steerable System | | | | Details |
| RST | Reservoir Saturation Tool (Schlumberger) Log | | | | Details |
| RST | Regressive System Track | | | | Details |
| RST | Reservoir Saturation Tool | | | | Details |
| RST | Bridge Plus | | | | Details |
| RSU | released swab unit | | | | Details |
| RSV | Rückschlagventil | | | | Details |
| RSVP | "répondez s'il vous plaît," which in English translates to "please reply." | | | | Details |
| rsvr | reservoir | | | | Details |
| Rsw | Gas solubility in water | | | | Details |
| RSWC | Rotational Side Wall Core | | | | Details |
| RT | Rotary Table | | | | Details |
| RT | radiographic examination (method) or radiography | | | | Details |
| RT | Real Time | | | | Details |
| RT | Round Trip | | | | Details |
| RT | True Resistivity | | | | Details |
| RT | rotary tools | | | | Details |
| RT | radiographic examination | | | | Details |
| RT | rig time | | | | Details |
| RT | rotary time | | | | Details |
| RT CB | round trip changed bit | | | | Details |
| RTA | Rate Transient Analysis | | | | Details |
| RTA | Road Traffic Accident | | | | Details |
| RTD | resistive thermal device, used for temperature measurement | | | | Details |
| RTD | rotary total depth | | | | Details |
| rtd | retard(ed) | | | | Details |
| RTDT | Real Time Data Transmission | | | | Details |
| RTE | Rotary Table Elevation (height of the RT from the GL) | | | | Details |
| RTECS | Registry of Toxic Effects of Chemical Substances | | | | Details |
| RTEP | Real Terms Earnings Power | | | | Details |
| rtg | rating | | | | Details |
| RTG | routing | | | | Details |
| RTG | running tubing | | | | Details |
| RTJ | Ring Type Joint | | | | Details |
| RTJ | ring tool joint or ring tool joint flange | | | | Details |
| RTJ | ring tool joint | | | | Details |
| RTJ | ring-type joint | | | | Details |
| RTKB | Rotary Table Kelly Bushing | | | | Details |
| RTL | Realizing The Limit | | | | Details |
| RTL | Refinery Technology Laboratory | | | | Details |
| RTLTM | rate too low to measure | | | | Details |
| RTMTR | rotameter | | | | Details |
| rtnr | retainer | | | | Details |
| RTNS | returns | | | | Details |
| RTO | Real Time Operations | | | | Details |
| RTO | regional transmission operators | | | | Details |
| RTOC | Real Time Operation Center | | | | Details |
| RTOC | Real Time Operations Center | | | | Details |
| RTOS | Real Time Operations Center | | | | Details |
| RTP | reinforced thermoset plastic | | | | Details |
| RTP | Radioactive Tracer logging | | | | Details |
| RTR | Risk Toloerance Ratio | | | | Details |
| RTRS | Radioactive Tracer | | | | Details |
| RTS | Remote Testing Station | | | | Details |
| RTS | Ready to service; time for a service company to be on location | | | | Details |
| RTTGP | re-enterable through tubing gravel pack system | | | | Details |
| RTTS | Retrievable Test-treat-squeez (packer) | | | | Details |
| RTTS | Retrievable Test Treat Squeeze | | | | Details |
| RTTS | a brand name for a retrievable squeeze tool Retrievable, test, treat, squeeze | | | | Details |
| RTTS | retrievable test treat squeeze(tool) | | | | Details |
| RTU | Remote Terminal Unit | | | | Details |
| RTU | remote telemetry unit | | | | Details |
| RTWR | return to work rate | | | | Details |
| RU | Rig Up | | | | Details |
| RU | RUSSIAN FEDERATION | | | | Details |
| RU | rigging up, rigged up | | | | Details |
| RU | rig(ged)(ging) up | | | | Details |
| RU | rotary unit | | | | Details |
| RUCC | rig-up casing crew | | | | Details |
| RUCT | rigging up cable tools or standard tools, completion tools or completion unit | | | | Details |
| RUCT | rigging-up cable tools | | | | Details |
| RUL | Regular unleaded gasoline | | | | Details |
| RUM | rigging-up machines | | | | Details |
| RUP | rigging-up pump | | | | Details |
| rupt | rupture | | | | Details |
| RURT | rigging up rot ary t o. ols | | | | Details |
| RURT | rigging-up rotary tools | | | | Details |
| RUS | RUSSIAN FEDERATION | | | | Details |
| RUSR | rigging-up service rig | | | | Details |
| RUST | rigging-up standard tools | | | | Details |
| RUSU | rigging up swabbing unit | | | | Details |
| RUSU | rigging-up swabbing unit | | | | Details |
| RUT | rigging-up tools | | | | Details |
| RV | Rückschlagventil (Back pressure Valve, Check valve, Float valve, non-return valve) | | | | Details |
| RV | Relief Valve | | | | Details |
| RV | Ranking Value | | | | Details |
| RVI | Remote Visual Inspection | | | | Details |
| RVP | Reid Vapour Pressure (see comment) | | | | Details |
| RVP | Reid Vapour Pressure | | | | Details |
| RVP | Reid vapor pressure | | | | Details |
| rvs(d) | reverse(ed) | | | | Details |
| RVT | rivet | | | | Details |
| Rw | Resistivity of Water | | | | Details |
| rw | Wellbore Radius | | | | Details |
| RW | RWANDA | | | | Details |
| Rw | resistivity, water | | | | Details |
| RWA | RWANDA | | | | Details |
| RWA | Resistivity Water Apparent | | | | Details |
| Rwa | resistivity, water(apparent) | | | | Details |
| RWC | Restricted Work Case (see comment) | | | | Details |
| RwC | Reaming with Casing | | | | Details |
| RWD | RWD Log | | | | Details |
| RWD | Reaming While Drilling | | | | Details |
| RWE-DEA | RWE(Rheinische-Westfalische Electrzitatwerk AG)-DEA AG fur Mineraloel und Chimie Germany | | | | Details |
| RWI | Raw Water Injection | | | | Details |
| rwk(d) | rework(ed) | | | | Details |
| rwkd | reworked | | | | Details |
| RWO | rig workover | | | | Details |
| RWP | Remedial Work Plan | | | | Details |
| RWTP | returned well to production | | | | Details |
| RXC | Regional Exploration Consultant | | | | Details |
| RXO | Resistivity of the invaded zone | | | | Details |
| Rxo | resistivity, flushed zone | | | | Details |
| RYC | Reference Your Cable...(date) | | | | Details |
| RYTLX | Reference Your TeLeX...(date) | | | | Details |
| S Riv | Seven Rivers | | | | Details |
| S.THR. | Side Thruster | | | | Details |
| S/R B/L | Signing and Releasing Bill(s) of Lading | | | | Details |
| S/SR | sliding-scale royalty | | | | Details |
| S/WTR | sanitary water | | | | Details |
| S7RV | SenTREE 7 Retainer Valve | | | | Details |
| SACROC | Scurry Area Canyon Reef Operators Committee | | | | Details |
| SADCOP-MAHRUKAT | Syrian Storing and Distributing Co., Petroleum Products Syria | | | | Details |
| SAGR | Spectral Azimuthal Gamma Ray | | | | Details |
| Samarec | Saudi Arabian Marketing and Refining Company | | | | Details |
| Samir | Société Marocaine de Raffinage | | | | Details |
| Samref | Saudi Aramco-Mobil Yanbu Refinery Company | | | | Details |
| SAMREF | Saudi Aramco Mobil Refinery Co. Ltd. Saudi Arabia | | | | Details |
| SAR | System Available Rate | | | | Details |
| SAR | Search and Rescue | | | | Details |
| SAR | Societe Africaine de Raffinage Senegal | | | | Details |
| SARA | Saturates, Aromatics, Resins, and Asphaltenes (See comment! "SARA Analysis") | | | | Details |
| SARA | Saturates, Aromatics, Resins, Asphaltenes | | | | Details |
| SARA | Superfund Amendments and Reporting Act | | | | Details |
| SARA | Superfund Amendments and Reauthorization Act | | | | Details |
| Sara | Saratoga | | | | Details |
| SARA | Superfund Amendments and Reauthorization Act of 1987 | | | | Details |
| SARAS | Saras S.p.A. Raffinerie Sarde Italy | | | | Details |
| SARPI | Ste. Algerienne pour la Reparation des Pipelines Algeria | | | | Details |
| SARPOM | Societa Azionaria Raffinazione Olli Minerali Italy | | | | Details |
| SART | Search & Rescue Transponder | | | | Details |
| Sasref | Saudi Aramco Shell Refining Company | | | | Details |
| SASREF | Saudi Aramco Shell Refinery Co. Saudi Arabia | | | | Details |
| Saudi Aramco | Saudi Arabian Oil Company | | | | Details |
| SAWR | Slim Array Wave Resistivity/Gamma Ray | | | | Details |
| SCANRAFF | Skandinaviska Raffinaderi AB Sweden | | | | Details |
| SCAR | DST Sample Carrier (SLB) | | | | Details |
| scf/yr | standard cubic feet per year | | | | Details |
| SCIRI | Supreme Council of the Islamic Revolution in Iraq | | | | Details |
| SCR | Slow Circulation Rate | | | | Details |
| SCR | Silicon-controlled rectifier | | | | Details |
| SCR | Steel Catenary Riser (subsea system component) | | | | Details |
| SCR | selective catalytic reduction | | | | Details |
| scr | scraper | | | | Details |
| scr | scratcher | | | | Details |
| scr | screen | | | | Details |
| scr(d) | screw(ed) | | | | Details |
| SCRAMSTM | surface controlled reservoir analysis and management system | | | | Details |
| SCRO | Subsea Control Room | | | | Details |
| SCRS | Sidewall Cores | | | | Details |
| scrub | scrubber | | | | Details |
| sctrd | scattered | | | | Details |
| SCWR | Slim Compensated Wave Resistivity tool (PathFinder) | | | | Details |
| SCWR | Slim Compensated Wave Resistivity | | | | Details |
| sdfract | sand fractured | | | | Details |
| sdfract | sandfracked | | | | Details |
| sdoilfract | sand-oil fracked | | | | Details |
| SDR | size diameter ratio, a common measurement in plastic liner pipe | | | | Details |
| SDR | shut down repairs | | | | Details |
| SDR | shut down for repairs | | | | Details |
| SDRAM | Synchronous Dynamic Random Access Memory | | | | Details |
| sdtkr | sidetrack(ed)(ing) | | | | Details |
| sdwtrfract | sand water fractured | | | | Details |
| sdwtrfract | sand-water fracked | | | | Details |
| SEDAR | System for Electronic Document Analysis and Retrieval | | | | Details |
| SEDRE | Sedimentology REport | | | | Details |
| Semi (or Semi-Sub) | Semi-Submersible Drilling Rig | | | | Details |
| SEPAR | Separator Sampling Report | | | | Details |
| ser | series, serial | | | | Details |
| SEREPCA | Societe Elf de Recherches et d’Exploitation des Petroles au Cameroun Cameroon | | | | Details |
| Serp | serpentine | | | | Details |
| Serr | Serratt | | | | Details |
| serv | service(s) | | | | Details |
| serv | chg service charge | | | | Details |
| SERVICES | SCHLUMBERGER WELL | | | | Details |
| SFER | Santa Fe Energy Resources, Inc. | | | | Details |
| SFERAE | Global Association for the use of knowledge on Fractured Rock in a state of Stress, in the field of Energy, Culture and Environment | | | | Details |
| SFR | Scope For Recovery | | | | Details |
| SGR | Spectral Gamma Ray | | | | Details |
| SGR | Shale Gouge Ratio | | | | Details |
| SGR | spectral gamma ray tool | | | | Details |
| SGRF | State General Reserve Fund | | | | Details |
| SHARP | Slim Hole Retrievable MWD Tool | | | | Details |
| Sharq | Eastern Petrochemical Company | | | | Details |
| SHARQ | Eastern Petrochemical Co. Saudi Arabia | | | | Details |
| SHR | Shrinkage | | | | Details |
| shr | shear | | | | Details |
| SHRK | Shrinkage factor | | | | Details |
| SHRT | Shrinkage Temperature | | | | Details |
| SHRV | Single-shot Hydraulic Reversing Valve | | | | Details |
| SIPETROL | Sociedad Internacional Petrolera S.A. Chile | | | | Details |
| SIR | Societe Ivoirienne de Raffinage Cote d’Ivoire | | | | Details |
| SIRIM | Standards & Industrial Research Institute of Malaysia Malaysia | | | | Details |
| skr d | sucker rod | | | | Details |
| SLNCR | silencer | | | | Details |
| SLPR | sleeper | | | | Details |
| SLPRC | Sierra Leone Petroleum Refining Co. Ltd. Sierra Leone | | | | Details |
| SLSR | Schlumberger Electronic Memory Gauge Recorder (Sapphire Type) | | | | Details |
| SLUR | slurry | | | | Details |
| SMART | Specific Measurable Auditable Realistic Time based | | | | Details |
| SMART | Specific, Measurable, Achievable, Realistic and Time-Based | | | | Details |
| SMR | SAN MARINO | | | | Details |
| SMR | Societe Malgache de Raffinage Madagascar | | | | Details |
| SMRI | Solution Mining Research Institute | | | | Details |
| SMRP | Static Model Review Panel | | | | Details |
| SMRT | Slim Micro Resistivity Tool | | | | Details |
| SNCR | selective non-catalytic reduction | | | | Details |
| SNP-GR | SNP Neutron-Gamma Ray Logging | | | | Details |
| Snr | Non removable skin | | | | Details |
| SNR | Serial Number | | | | Details |
| SNUR | Significant New Use Rule | | | | Details |
| Socar | State Oil Company of Azerbaijan | | | | Details |
| SOCAR | State Oil Company of the Azerbaijan Republic Azerbaijan | | | | Details |
| SOCIR | Societe Congo-Italianne de Raffinage Dem. Rep. of the Congo | | | | Details |
| SOGARA | Societe Equatoriale de Raffinage Gabon | | | | Details |
| SONATRACH | Entreprise Nationale Sonatrach Algeria | | | | Details |
| SONPETROL | Sondeos Petroliferos, S.A. Spain | | | | Details |
| SONRE | Sonic Calibration Report | | | | Details |
| SONWR | Sonic Waveform Report | | | | Details |
| SOPOR | Sociedad Distribuidora de Cumbustiveis S.A. Portugal | | | | Details |
| SOR | Statement For Requirments (see comment) | | | | Details |
| SOR | Steam Oil Ratio (HO projects) | | | | Details |
| Sor | residual oil Saturation (oil that is immobile) | | | | Details |
| SOR | Statement of Requirements | | | | Details |
| SOR | start of run | | | | Details |
| SOR | Sharjah Oil Refining Co. Ltd. Emir. of Sharjah | | | | Details |
| SORC | Sharjah Oil Refining Company | | | | Details |
| Sorg | Residual Oil Saturation after gas flood | | | | Details |
| sort | sorted(ing) | | | | Details |
| Sorw | residual oil Saturation to waterflood | | | | Details |
| Sorw | Residual Oil Saturation after water flood | | | | Details |
| SOTRAL | Societe de Transport d’Arzews Algeria | | | | Details |
| sp gr | specific gravity | | | | Details |
| SPARC | Scalable Processor Architecture Reduced instruction set Computer | | | | Details |
| spcr | spacer | | | | Details |
| SpectraS | SpectraScan - spectral gamma ray | | | | Details |
| Spectrum | A Function of Frequency | | | | Details |
| Sphaer | Sphaerodina | | | | Details |
| Spiro.b. | Spiroplectammina barrowi | | | | Details |
| spkr | sprinkler | | | | Details |
| SPLTR | splitter | | | | Details |
| SPR | Strokes Per Minute | | | | Details |
| SPR | Strategic petroleum reserve | | | | Details |
| Spra | Spraberry | | | | Details |
| sprf | spirifers | | | | Details |
| Sprin | Springer | | | | Details |
| SPRM | Smart Pilot Reservoir Monitoring | | | | Details |
| SPROF | Seismic Profile | | | | Details |
| SPRT | Standard Platinum Resistance Thermometers | | | | Details |
| SQRT | square root | | | | Details |
| SR | Saugrohr | | | | Details |
| SR | Severity Rate | | | | Details |
| SR | Supplementary Requirement | | | | Details |
| SR | Shear Rate | | | | Details |
| SR | Source Rock | | | | Details |
| SR | Sampling Rate | | | | Details |
| SR | SAUDI ARABIA | | | | Details |
| SR | SURINAME | | | | Details |
| SR | short radius | | | | Details |
| SR | swab rate | | | | Details |
| SR | swab run(s) | | | | Details |
| SRA | Source Rock Analyser | | | | Details |
| SRAK | South Rub‘ al-Khali Company Ltd. | | | | Details |
| SRB | Sulphate Reducing Bacteria (souring of reservoir) | | | | Details |
| SRB | Straight Run Benzene | | | | Details |
| SRB | Sulfate Reducing Bacteria | | | | Details |
| SRB | SERBIA | | | | Details |
| SRB | sulfate bacteria | | | | Details |
| SRB | Single Receiver Bond Log | | | | Details |
| SRBC | Susquehanna River Basin Commission | | | | Details |
| SRD | Seismic Reference Datum, an imaginary horizontal surface at which TWT is assumed to be zero | | | | Details |
| SRD | Shell Recruitment Day | | | | Details |
| SRD | short radius Drilling | | | | Details |
| SREC | Seismic Record Log | | | | Details |
| SRF | State-administered water pollution control Revolving Funds | | | | Details |
| SRG | surge | | | | Details |
| SRL | single random lengths | | | | Details |
| SRME | Surface-Related Multiple Attenuation | | | | Details |
| SRN | Service Receipt Note | | | | Details |
| SRN | straight-run naphtha | | | | Details |
| SRO | Surface Read-Out | | | | Details |
| SRP | Sucker Rod Pump | | | | Details |
| SRP | sulfur recovery plant | | | | Details |
| SRPL | Surface Recorded Pressure Log | | | | Details |
| SRS | Single-Phase Reservoir Sampler (SLB) | | | | Details |
| SRS | Spinner Reponse Slope (see comment) | | | | Details |
| SRS | Seismic Reference Survey | | | | Details |
| SRS | Velocity Survey | | | | Details |
| SRS | Seismic Reference Service | | | | Details |
| SRSL | Seismic Reference Survey/Neutron | | | | Details |
| SRSN | Seismic Reference Survey/ Neutron | | | | Details |
| SrSO4 | strontium sulfate | | | | Details |
| SRT | Microspherically Focused Resistivity | | | | Details |
| SRT | Step Rate Test | | | | Details |
| SRT | Site Receival Test | | | | Details |
| SRT | spill response team | | | | Details |
| srt | sort(ed)(ing) | | | | Details |
| SRT | Microlaterolog Focused Log | | | | Details |
| SRU | sulfur recovery unit | | | | Details |
| SRV | safety relief valve | | | | Details |
| SSCR | Shaped Steel Caternary Riser | | | | Details |
| SSEWR-P4 | SuperSlim EWR-Phase 4 | | | | Details |
| SSMAR | Synthetic Seismic Marine Log | | | | Details |
| SSPLR | Subsea Pig Launcher/Receiver | | | | Details |
| SSR | Subsurface Release (see comment) | | | | Details |
| SSR | Shear Seal Ram | | | | Details |
| SSR | Sum of Squares Regression | | | | Details |
| STAGR | Static Gradient Survey Report | | | | Details |
| STAR | Simultaneous Acoustic and Resistivity Imager | | | | Details |
| STERPP | storage tank emission reduction partnership program (72 FR 19891) | | | | Details |
| Stgr | Steigrohr | | | | Details |
| stir | stirrup | | | | Details |
| stnr | strainer | | | | Details |
| stor | storage | | | | Details |
| STPR | strip(per)(ping) | | | | Details |
| stpr(d) | stopper(rd) | | | | Details |
| STR | System Technical Rate | | | | Details |
| Str | Strawn | | | | Details |
| S-T-R | Section-Township-Range | | | | Details |
| STRA | STRATA LOGIK® | | | | Details |
| Straddle | Doppel-Packer Anordnung | | | | Details |
| STRAT | Stratigraphy, stratigraphic | | | | Details |
| strat | stratigraphic | | | | Details |
| strd | straddle | | | | Details |
| strd | strand(ed) | | | | Details |
| STRF | Steigrohrfehler | | | | Details |
| strg | strong | | | | Details |
| strg | storage | | | | Details |
| strg(r) | string(er) | | | | Details |
| stri | striated | | | | Details |
| strk | streak | | | | Details |
| strkd | streaked | | | | Details |
| strks | streaks | | | | Details |
| STROH | strap out of hole | | | | Details |
| strom | stromatoporoid | | | | Details |
| STRONGER | State Review of Oil and Natural Gas Environmental Regulation, Inc | | | | Details |
| STRONGER | State Review of Oil and Natural Gas Environmental Regulations | | | | Details |
| STRRE | Stratigraphy Report | | | | Details |
| STRT | Strata | | | | Details |
| strt | straight | | | | Details |
| strtd | straightened | | | | Details |
| STRTS | Strata | | | | Details |
| struc | structure, structural | | | | Details |
| sub rnd | sub rounded | | | | Details |
| sub rnd | subrounded | | | | Details |
| sucr | sucrosic | | | | Details |
| SUMRE | Summary Report | | | | Details |
| suprv | supervisor | | | | Details |
| SUR | SURINAME | | | | Details |
| Sur | survey | | | | Details |
| SURF | Subsea/Umbilicals/Risers/Flowlines | | | | Details |
| SURF | subsea, umbilicals, riser, flowline | | | | Details |
| surf | surface | | | | Details |
| SURFR | Surface Sampling Report | | | | Details |
| Surp | surplus | | | | Details |
| SURRE | Survey Report | | | | Details |
| SURVL | Survey Chart Log | | | | Details |
| Svry | severy | | | | Details |
| SW/SWTR | salt water | | | | Details |
| SWFRACT | sand water fractured | | | | Details |
| swgr | switchgear | | | | Details |
| SWN/GR | Sidewall Neutron-Gamma Ray | | | | Details |
| SWR | statewide rules | | | | Details |
| SWRK | switchrack | | | | Details |
| SXAR | Schlumberger Automatic X-Type Release | | | | Details |
| SYNRE | Synthetic Seismic Report | | | | Details |
| SYR | SYRIAN ARAB REPUBLIC | | | | Details |
| T&R | tubing & rods | | | | Details |
| T&R | tubing and rods | | | | Details |
| T/BRD | terminal board | | | | Details |
| TAGOGR | Thermally Assisted Gas/Oil Gravity Drainage | | | | Details |
| Taper | Pipe thread | | | | Details |
| TAR | True Amplitude Recovery | | | | Details |
| Tark | Tarkio | | | | Details |
| TBR | To Be Renamed | | | | Details |
| TBRT | Thin-Bed Resistivity | | | | Details |
| TCR | Tubing Conveyed Release | | | | Details |
| TDR | temperature differential recorder | | | | Details |
| TDRM | top down reservoir modeling/modeling | | | | Details |
| TDT GR | TDT Gamma Ray Casing Collar Locator Log | | | | Details |
| TDTGR | TDT Gamma Ray Casing Collar Locator Log | | | | Details |
| TELER | Teledrift Report | | | | Details |
| TEMP/GR | Temperature Log-Gamma Ray | | | | Details |
| TENR | Technologically Enhanced Natural Radiation | | | | Details |
| TEOR | thermal enhanced oil recovery | | | | Details |
| Ter | tertiary | | | | Details |
| termin | terminate(ed)(ing)(ion) | | | | Details |
| TFLR | TTRM Sub Fluid Resistivity | | | | Details |
| TFR | Total Flow Rate | | | | Details |
| TGLR | total gas lift ratio | | | | Details |
| TGOR | Total Gas Oil Ratio (GOR uncorrected for gas lift gas present in the production fluid) | | | | Details |
| TGR | Tubing Gauge | | | | Details |
| T-GR | Temperature-Gamma Ray Logging | | | | Details |
| TGRN | Tubing Gamma Ray-Neutronlog | | | | Details |
| Ther | Thermopolis | | | | Details |
| THERM | Thermometer Log | | | | Details |
| Therm | a measure of heat content, where one therm = 100,000 btus | | | | Details |
| therm | thermometer | | | | Details |
| therm | ckr thermal crack | | | | Details |
| therst | thermostat | | | | Details |
| THR | THRuster | | | | Details |
| thrling | throttling | | | | Details |
| thrm | thermal | | | | Details |
| Throw | a fault’s vertical displacement | | | | Details |
| THRT | Tubing Hanger Running Tool | | | | Details |
| thru | through | | | | Details |
| Thur | Thurman | | | | Details |
| TIPRO | Texas Independent Producers and Royalty Owners Association | | | | Details |
| tkr | tanker(s) | | | | Details |
| TLROP | Tehnical Limit Rate of Penetration | | | | Details |
| tndr | tender | | | | Details |
| tons/yr | tons per year | | | | Details |
| TOR | Terms Of Reference | | | | Details |
| Tor | Torque | | | | Details |
| Tor | Toronto | | | | Details |
| TOR | Tema Oil Refinery Ghana | | | | Details |
| TORAN | Torque and Drag Analysis | | | | Details |
| TORC | Thai Oil Refinery Co. Thailand | | | | Details |
| Toro | Toroweap | | | | Details |
| TORT | Tortuosity | | | | Details |
| TORT | tearing out rotary tools | | | | Details |
| TPERF | Tool Performance | | | | Details |
| TPR | Tubing performance relationship ("outflow performance" obtained from Nodal analysis) | | | | Details |
| TPR | Tubing Pipe Rams | | | | Details |
| Tpr | pseudo-reduced temperature | | | | Details |
| TR | Temporary Refugee | | | | Details |
| TR | Thiokol (type of elastomer) | | | | Details |
| TR | Travel Request | | | | Details |
| TR | Temporary Refuge | | | | Details |
| TR | Tracking | | | | Details |
| TR | TURKEY | | | | Details |
| tr | trace | | | | Details |
| Tr | tract | | | | Details |
| TR | temperature recorder | | | | Details |
| TR | tract | | | | Details |
| TRA | Training | | | | Details |
| TRA | Tracer Log | | | | Details |
| TRA | Top Riser Assembly | | | | Details |
| TRA | Task Risk Assessment | | | | Details |
| TRACECA | The Transport Corridor Europe-Caucasus-Asia | | | | Details |
| Track | a recording of one measurement from a log | | | | Details |
| TRACL | Tractor Log | | | | Details |
| trans | transfer(ed)(ing) | | | | Details |
| trans | transformer | | | | Details |
| trans | transmission | | | | Details |
| TRANSCO | Transcontinental Gas Pipe Line Corp. | | | | Details |
| transl | translucent | | | | Details |
| TransMed | Trans-Mediterranean Pipeline Company | | | | Details |
| TRANSMED | Transmediterranean Pipeline Co. Ltd. (also TNPC) Algeria | | | | Details |
| transp | transparent | | | | Details |
| transp | transportation | | | | Details |
| TRAPIL | Societe des Transports Petroliers Par Pipeline France | | | | Details |
| TRBV | Tubing Retrievable Ball Valve | | | | Details |
| TRC | Total Reportable Cases (see comment) | | | | Details |
| TRC | Takreer Research Center | | | | Details |
| TRC | temperature recorder controller | | | | Details |
| TRCF | Total Reportable Case Frequency (see comment) | | | | Details |
| TRCFR | Total Recordable Case Frequency Rate | | | | Details |
| TRCR | Tracer Survey | | | | Details |
| TRD | Total Report Data | | | | Details |
| TRD | Data Transmission | | | | Details |
| TREAT | Treatment Report | | | | Details |
| Tremp | Teremplealeau | | | | Details |
| Tren | Trenton | | | | Details |
| TREP | Test Report | | | | Details |
| Tres | Reservoir Temperature | | | | Details |
| TRG | to be conditioned for gas | | | | Details |
| TRI | Trip | | | | Details |
| TRI | toxics Release Inventory | | | | Details |
| TRI | Toxic Release Inventory | | | | Details |
| Tri | Triassic | | | | Details |
| TRIC | Talk and Risk Identification Card | | | | Details |
| TRIF | Total Recordable Injury Frequency | | | | Details |
| trilo | trilobite | | | | Details |
| TRIM | Tool Review & Inspection Maintenance (repair & maintenance program used by Oilserv) | | | | Details |
| Trin | Trinidad | | | | Details |
| TRIP | Trip Condition Log | | | | Details |
| Trip | pulling all pipe from the well and rerunning the pipe to bottom | | | | Details |
| trip | triplicate | | | | Details |
| Trip | Tripoli | | | | Details |
| trip | tripolitic | | | | Details |
| trip | tripped(ing) | | | | Details |
| Trip out | To remove the drillstring from the wellbore. | | | | Details |
| TRIR | Total Recordable Injury Rate | | | | Details |
| TRIR | Total Reportable Injury Rate | | | | Details |
| trk | truck | | | | Details |
| trkg | trackage | | | | Details |
| TRL | Technology Readiness Level | | | | Details |
| TRL | Tracer Log | | | | Details |
| TRL | Tracerlog | | | | Details |
| TRL/NEU | Tracer Log-Neutron | | | | Details |
| Trn | Trenton | | | | Details |
| TRNDC | transducer | | | | Details |
| TRO | to be conditioned for oil | | | | Details |
| TROIF | Total Recordable Occupational Incident Frequency | | | | Details |
| TRQ | torque | | | | Details |
| TRS | Tubing Running Services | | | | Details |
| TRS | total reduced sulfur | | | | Details |
| TRSCSSSV | Tubing Retrievable Surface Controlled Sub-Surface Safety Valve | | | | Details |
| TRSCSSV | tubing-retrievable, surface-controlled, subsurface safety valves (Weatherford tool) | | | | Details |
| TRSCSSV | Tubing Retrievable Surface Controlled Sub-Surface Valve | | | | Details |
| TRSSSCV | Tubing Retrievable Sub Surface Safety Control Valve | | | | Details |
| TRSSV | Tubing Retrievable Subsurface Safety Valve | | | | Details |
| TRSV | Tubing-Retrievable Safety Valve (see comment!) | | | | Details |
| TRSV | Tubing Retrievable Safety Valve | | | | Details |
| TRT | Tree Running Tool | | | | Details |
| trt(r)(d)(g) | treat(er)(ed)(ing) | | | | Details |
| trtr | treater | | | | Details |
| TRVL | travel(ed)(ing) | | | | Details |
| TSR | Thermochemical Sulphate Reduction (creates H2S) | | | | Details |
| TSR | Thermochemical Sulfate Reduction | | | | Details |
| TSR | Tubing Seal Bore Receptacle | | | | Details |
| TTR | Top Tension Riser | | | | Details |
| TTR | through tubing retrievable | | | | Details |
| TTRD | Through Tubing Rotary Drilling | | | | Details |
| TTRM | Temperature/Tension/Mud Resistivity Sub | | | | Details |
| TTRM | TTRM Sub | | | | Details |
| tube turn | Prefabricated piece of pipeline (allows change of direction of a pipeline without field bending the pipeline) | | | | Details |
| Tupras | Turkiye Petrol Raffinerileri | | | | Details |
| TUPRAS | Turkiye Petrol Rafinerileri A.S. Turkey | | | | Details |
| TUR | TURKEY | | | | Details |
| TURB | turbo, turbine | | | | Details |
| TVDTR | true vertical depth from the rotary table | | | | Details |
| TVRF | True Vertical Depth versus Repeat Formation Tester | | | | Details |
| Tw Cr | Twin Creek | | | | Details |
| TWR | tower | | | | Details |
| tywr | typewriter | | | | Details |
| U/WTR | utility water | | | | Details |
| UBIRE | Ultrasonic Borehole Imager Report | | | | Details |
| UGR | Universal Gamma Ray | | | | Details |
| UKR | UKRAINE | | | | Details |
| ULCGR | Uncompressed LDC CNL Gamma Ray Log | | | | Details |
| unbr | unbranded | | | | Details |
| UNHCR | United Nations High Commission on Refugees | | | | Details |
| UNLDR | unloader | | | | Details |
| UNRWA | United Nations Relief and works Agency | | | | Details |
| UPR | Upper Pipe Rams | | | | Details |
| UR | Ultimate Recovery | | | | Details |
| UR | under-reamer | | | | Details |
| UR | Unclassified redrill (sidetrack) | | | | Details |
| UR | underreaming | | | | Details |
| UR | unsulfonated residue | | | | Details |
| UR | used rod | | | | Details |
| URA | Ultimate recovery appreciation | | | | Details |
| URAG | Unterweser Reederei GmbH Germany | | | | Details |
| URAN | Uraniurn Log | | | | Details |
| URAN | Uranium | | | | Details |
| URF | Ultimate Recovery Factor | | | | Details |
| URL | uniform resource locator | | | | Details |
| URR | Ultimately recoverable resources | | | | Details |
| URT | Universal Running Tool | | | | Details |
| URY | URUGUAY | | | | Details |
| USPARC | Ultra Scalable Processor Architecture Reduced instruction set Computer | | | | Details |
| USR | Ultra Short Radius | | | | Details |
| v.r. | very rare | | | | Details |
| VAFR | vehicle Accident Frequency Rate | | | | Details |
| vap(r) | vapor(izor) | | | | Details |
| VAR | Value Assurance Review | | | | Details |
| var | various. variable | | | | Details |
| var | variable, various | | | | Details |
| var | volt-ampere reactive | | | | Details |
| vari | variegated | | | | Details |
| VARN | varnish | | | | Details |
| VBR | Variable Bore Rams (annular rams) | | | | Details |
| VD-GR | Variable Density-Gamma Ray Logging | | | | Details |
| Vee door | Vee door | | | | Details |
| Ver | Cl Vermillion Cliff | | | | Details |
| VERAN | Verticality Analysis | | | | Details |
| Verd | Verdigris | | | | Details |
| VERIF | Verification List | | | | Details |
| VERLI | Verification Listing | | | | Details |
| vert | vertical | | | | Details |
| VERTK | Vertical Thickness | | | | Details |
| v-f-gr | very fine-grained | | | | Details |
| VIBR | Vibrator | | | | Details |
| VIPER | VIPER Slimhole Coiled Tubing MWD Tool | | | | Details |
| VIPR | Circulation valve (Haliburton) | | | | Details |
| VIR | Value Investment Ratio | | | | Details |
| VIR | VIRGIN ISLANDS (US) | | | | Details |
| Virg | Virgelle | | | | Details |
| VLRC | Virtual Learning Reality Center | | | | Details |
| VOR | Variation Order Request | | | | Details |
| VR | Vitrinite Reflectivity | | | | Details |
| VR | vapor recovery | | | | Details |
| VRR | Voidage Replacement Ratio | | | | Details |
| vrs | varas | | | | Details |
| VRS | Velocity Survey | | | | Details |
| VRT | Vertilog® | | | | Details |
| VRT1 | Vertilog 3-1/2 in. (89 mm), 4-1/2 in. (114 mm) | | | | Details |
| VRT2 | Vertilog 5-1/2 in. (140 mm) | | | | Details |
| VRT3 | Vertilog 7 in. (178 mm) | | | | Details |
| VRT4 | Vertilog 8-5/8 in. (219 mm) | | | | Details |
| vrtb | vertebrate | | | | Details |
| vrtl | vertical | | | | Details |
| VRU | vapor recovery unit | | | | Details |
| vrvd | varved | | | | Details |
| VSPRO | Vertical Seismic Profile | | | | Details |
| VTRC | Vertilog/Vertline | | | | Details |
| W Cr | Wall Creek | | | | Details |
| W&R | Wash & Ream (Drilling) | | | | Details |
| W&R | wash and ream | | | | Details |
| W/CLR | water cooler | | | | Details |
| WAR | Well Available Rate | | | | Details |
| War | Warsaw | | | | Details |
| WARI | walk around rig inspection | | | | Details |
| WCCR | workers’ compensation claim rate | | | | Details |
| WCPR | workers’ compensation premium rate | | | | Details |
| WCQR | Well Testing Compensated Quartz Gauge Recorder | | | | Details |
| Wd R | Wind River | | | | Details |
| WDLR | Work Days Lost Restricted | | | | Details |
| WDR | Deeper Pool Wildcat redrill | | | | Details |
| WESTR | Well Status Record | | | | Details |
| WESUR | Well Summary Report | | | | Details |
| WFR | Water Flow Rate | | | | Details |
| WFR | New Field Wildcat redrill | | | | Details |
| WFRV | water flood regulation valve | | | | Details |
| WGR | Water Gas Ratio | | | | Details |
| w-hr | watt-hour | | | | Details |
| WKOR | work over rig | | | | Details |
| wkor | workover rig | | | | Details |
| WKTANRP | West Kazakhstan Territorial Administration for Natural Resource Protection Kazakhstan | | | | Details |
| wlbr | wellbore | | | | Details |
| wldr | welder | | | | Details |
| WLR | Water Level Recorder | | | | Details |
| WLR | WireLine Run | | | | Details |
| WLR | Water Liquid Ratio (water cut in an oil well ) | | | | Details |
| WOCR | waiting on completion rig | | | | Details |
| WOR | Water-Oil Ratio | | | | Details |
| WOR | water oil contact | | | | Details |
| WOR | Wildcat outpost redrill | | | | Details |
| WOR | waiting on rig or rotary | | | | Details |
| WORKO | Workover | | | | Details |
| Worm | an inexperienced worker | | | | Details |
| WORT | waiting on rotary tools | | | | Details |
| WPR | Well Prognosis Report | | | | Details |
| WPR | Wellhead Performance relationship | | | | Details |
| WPR | Well Potential Rate | | | | Details |
| WPR | New Pool Wildcat redrill | | | | Details |
| wpr | wrapper | | | | Details |
| wr | weekly report | | | | Details |
| WR | Wireline Retrievable (as in a WR Plug) | | | | Details |
| WR | Wet Resistivity | | | | Details |
| WR | White River | | | | Details |
| WRA | World Refining Association | | | | Details |
| wrap | Same as dope; protective coating on a steel pipeline | | | | Details |
| WRAs | Wilderness Reinventory Areas | | | | Details |
| WRB | Well Review Board | | | | Details |
| WRD | Wide Range Distillate | | | | Details |
| Wref | Wreford | | | | Details |
| WRFM | Wells, Reservoir and Facilities Management | | | | Details |
| WRG | wiring | | | | Details |
| WRIC | Wire Rods in Coils | | | | Details |
| WRIV | wireline removable insert valve | | | | Details |
| WROV | work removely operated vehicle | | | | Details |
| WRS | Well Report Sepia | | | | Details |
| WRSCSSV | Wireline Retrievable Surface Controlled Sub-Surface Valve | | | | Details |
| WRSCSSV | Wireline Retrievable Surface Control SSV | | | | Details |
| WRSSSCV | Wireline Retrievable Sub Surface Safety Control Valve | | | | Details |
| WRSSV | wireline retrievable subsurface safety valve | | | | Details |
| wrt | With regard to | | | | Details |
| WRT | With Reference To | | | | Details |
| WRT | With Respect To | | | | Details |
| WRTB | wash and ream to bottom | | | | Details |
| WSERE | Well Seismic Edit Report | | | | Details |
| WSR | Well Shoot Report | | | | Details |
| WSR | Shallower Pool Wildcat redrill | | | | Details |
| WSSUR | Well Seismic Survey Plot | | | | Details |
| WTH/PRF | weatherproof | | | | Details |
| wthr(d) | weather(ed) | | | | Details |
| WTR | Well Technical Rate | | | | Details |
| WTR | water | | | | Details |
| wtr(y) | water, watery | | | | Details |
| wtr.cush | water cushion | | | | Details |
| WTR/PRF | waterproof | | | | Details |
| WTR/T | watertight | | | | Details |
| WWR | When, Where Ready | | | | Details |
| XFMR | transformer | | | | Details |
| XHGR | extra-heavy grade pipe | | | | Details |
| XKR | KINGMAN REEF | | | | Details |
| XMRI | Extended Range Micro Imager (Halliburton) | | | | Details |
| XMTR | transmitter | | | | Details |
| X-over | crossover | | | | Details |
| XPERM | Matrix Permeability in the X-Direction | | | | Details |
| XPOR | Crossplot Porosity | | | | Details |
| XPR | PARACEL ISLANDS | | | | Details |
| XR | SPRATLY ISLANDS | | | | Details |
| X-R | X-ray | | | | Details |
| XRD | eXperienced hire Recruiting Day | | | | Details |
| XRD | X ray Diffraction | | | | Details |
| XRD | X-Ray Difraction | | | | Details |
| XRD | x-ray diffraction analysis | | | | Details |
| X-REF | cross reference | | | | Details |
| XTR | TROMELIN ISLAND | | | | Details |
| Xtree | Christmas tree | | | | Details |
| XX-STR | double extra strong | | | | Details |
| YAR | York Antwerp Rules | | | | Details |
| YORC | Yemen Oil Refining Company | | | | Details |
| yr | year | | | | Details |
| ZRCC | Zhenhai Refining&Chemical Co. Ltd. China | | | | Details |
| rb | Radius of Bohrloch | | | | Details |
| PRT | Produktion Rohrtur | | | | Details |
| TARSS | Temperature-activated rigid setting system | | | | Details |
| CrystalSeal | See PGS | | | | Details |
| THERMATEK | See TARSS | | | | Details |
| H2Zero | See OCPS | | | | Details |
| TARS | Temperature-activated rigid setting | | | | Details |
| LTIR | Lost Time Injury Rate | | | | Details |
| LTIR | Lost Time Incident Rate | | | | Details |
| LTIR | Long-Term Injured Reserve (professional sports) | | | | Details |
| LTIR | Longer Term Investment Return | | | | Details |
| Rt | Reference Teufe (reference depth) | | | | Details |
| RWI | Restricted Work Injury | | | | Details |
| F term | Financial Term | | | | Details |
| NIORDC | National Iranian Oil Refining & Distribution Company | | | | Details |
| IRITEC | Consortium of Iran International Engineering Company | | | | Details |
| C term | Construction | | | | Details |
| P term | Procurement | | | | Details |
| IDRO | Iran Development and Reconstruction Organization | | | | Details |
| vorb | Vorbreitung (preparations…) | | | | Details |
| ÜSR | Über Spüll Rohr | | | | Details |
| UESR | Über Spüll Rohr | | | | Details |
| USR | Über Spüll Rohr (ÜSR) | | | | Details |
| IR | Inside Radius | | | | Details |
| IRMN | Inside Radius Minimum | | | | Details |
| IRMX | Inside Radius Maximum | | | | Details |
| IRAV | Inside Radius Average | | | | Details |
| ER | External Radius | | | | Details |
| ERAV | External Radius | | | | Details |
| Hor | Horizont | layer | | | Details |
| Str | Strang | pipeline | | | Details |
| red | re-dedication | | | | Details |
| KPR | Premium shirttail protection | | | | Details |
| DKPR | Diamond KPR | | | | Details |
| RMS | Mud Sample Resistivity | | | | Details |
| RMFS | Mud Filtrate Resistivity | | | | Details |
| RMCS | Mud Cake Resistivity | | | | Details |
| MRT | Maximum Recorded Temperature | | | | Details |
| RUN | Run Number | | | | Details |
| RDATE | Run Date | | | | Details |
| PRODM | Production Method | | | | Details |
| HRLB | Hours Log began | | | | Details |
| LOGDIR | Logging Direction Up or Down | | | | Details |
| SPR | Surface Prod rate | | | | Details |
| SIR | Surface Injection Rate | | | | Details |
| FRB | Federal Reserve Board | | | | Details |
| DCR | Deep Carbonate Revisit | | | | Details |
| wbwr | Well By Well Review | | | | Details |
| RCP | Rate contrtolled Production | | | | Details |
| AR | Asset Representative | | | | Details |
| nr | Not Reached | | | | Details |
| LRK | linearer Regression koeffizient (same as LKK) | | | | Details |
| SNR | Sondennummer | Well identification number | | | Details |
| wdr | Withdrawal | | | | Details |
| URC | Upstream Research Company | | | | Details |
| EPR | Execusion Progrss Reviews | | | | Details |
| DQAR | Design Quality Assurance Reviews | | | | Details |
| PHSSER | Project HSSE Review | | | | Details |
| ESR | Estimate and Schedule Reviews | | | | Details |
| AR | Asset Register | | | | Details |
| RA | Risk Assessment | | | | Details |
| SRT | Spark Resistant Tool | | | | Details |
| Kair | Air Permeability | | | | Details |
| NRIS | Natural Resources Information System | | | | Details |
| RST | Rundsteuerung | | | | Details |
| DR | Damage Ratio (the ratio of rate without skin to the rate with skin - similar to FE) | | | | Details |
| PR | Peng-Robinson | | | | Details |
| rel | relative | | | | Details |
| res | at reservoir conditions | | | | Details |
| ORB | OPEC Reference Basket | | | | Details |
| HTR | Horner Time Ratio | | | | Details |
| EDR | estimated damage ratio | | | | Details |
| SRK | Soave-Redlich-Kwong | | | | Details |
| WRG | Well Review Gate | | | | Details |
| GRS | Geomagnetic Referencing Services | | | | Details |
| IGRF | International Geomagnetic Reference Field | | | | Details |
| IFR | Infield Referencing | | | | Details |
| ACR | Anti-collision Rule | | | | Details |
| TCR | Tolerable collision risk | | | | Details |
| SR | Step Rate | | | | Details |
| LQCRM | Log Quality Control Reference Manual | | | | Details |
| LRP | Linear Rod Pump | | | | Details |
| MURAG | Fully Automated Fluid Level Measurement Tool | | | | Details |
| SR | Sucker Rod | | | | Details |
| MRQ | Most Recent Quarter | | | | Details |
| RBS | Romenia & Black Sea region | | | | Details |
| WRR | Well/Reservoir Review | | | | Details |
| BRV | Bulk Rock Volume | | | | Details |
| SR | SR Piezzosonde mit Einbauten | | | | Details |
| RPR | Reserves-to-production ratio | | | | Details |
| REG | Re-entry Guide | | | | Details |
| I.res | Inplace reserven | | | | Details |
| Tstr | Test rate | | | | Details |
| RMI | Returned Miscible Injectant | | | | Details |
| FGPR | Free Gas Production Rate | | | | Details |
| GPR | Gas Production rate | | | | Details |
| GIR | Gas Injection rate | | | | Details |
| PR | Production Rate | | | | Details |
| OPR | Oil Production Rate | | | | Details |
| WIR | Water Injection Rate | | | | Details |
| MTR | Middle Time Region | | | | Details |
| CRD | Constant Rate Drawdown | | | | Details |
| CRB | Constant Rate Build-up | | | | Details |
| VRD | Variable rate drawdown | | | | Details |
| SRT | Step-rate Transient Test | | | | Details |
| CSFR | Structure of fundamental | | | | Details |
| TSRT | Transient step-rate test | | | | Details |
| TR | Target Rate | | | | Details |
| STR | Steigrohr | Tubing | | | Details |
| SAARC | South Asian Association for Regional Cooperation | | | | Details |
| IDER | Impulse Derivatve | | | | Details |
| DER | Derivative for Drawdown | | | | Details |
| VDR | Vessel Discharge Ration | | | | Details |
| VLR | Vessel Load Ration | | | | Details |
| Khor | Horizontal permeability | | | | Details |
| ARQS | Advanced Reservoir Quality Services | | | | Details |
| Pro | Production | | | | Details |
| DPR | Descipline Peer Review | | | | Details |
| EUR | Euro | | | | Details |
| ARS | Argentine Peso | | | | Details |
| EUR | Euro | | | | Details |
| BYR | Belarussian Ruble | | | | Details |
| EUR | Euro | | | | Details |
| BRL | Brazilian Real | | | | Details |
| KHR | Kampuchean Riel | | | | Details |
| CRC | Costa Rican Colon | | | | Details |
| HRK | Croatian Kuna | | | | Details |
| EUR | Euro | | | | Details |
| ERN | Eritrean Nakfa | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| INR | Indian Rupee | | | | Details |
| IDR | Indonesian Rupiah | | | | Details |
| IRR | Iranian Rial | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| KRW | Korean Won | | | | Details |
| LRD | Liberian Dollar | | | | Details |
| EUR | Euro | | | | Details |
| MYR | Malaysian Ringgit | | | | Details |
| MVR | Maldive Rufiyaa | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| MRO | Mauritanian Ouguiya | | | | Details |
| MUR | Mauritius Rupee | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| NPR | Nepalese Rupee | | | | Details |
| EUR | Euro | | | | Details |
| OMR | Omani Rial | | | | Details |
| PKR | Pakistan Rupee | | | | Details |
| EUR | Euro | | | | Details |
| QAR | Qatari Rial | | | | Details |
| EUR | Euro | | | | Details |
| RON | Romanian New Leu | | | | Details |
| RUB | Russian Ruble | | | | Details |
| RWF | Rwanda Franc | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| SAR | Saudi Riyal | | | | Details |
| RSD | Dinar | | | | Details |
| SCR | Seychelles Rupee | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| ZAR | South African Rand | | | | Details |
| EUR | Euro | | | | Details |
| LKR | Sri Lanka Rupee | | | | Details |
| SRD | Surinam Dollar | | | | Details |
| TRY | Turkish Lira | | | | Details |
| EUR | Euro | | | | Details |
| YER | Yemeni Rial | | | | Details |
| verl | verloren | lost | | | Details |
| MOMR | Monthly Oil Market Report | | | | Details |
| IPRs | Inflow Performance Curves | | | | Details |
| MOPRO | Monthly Production | | | | Details |
| ABBR | Abbreviation | | | | Details |
| TAPRO | Target Production | | | | Details |
| RCL | Resistivity of Clay | | | | Details |
| RHOB | bulk density | | | | Details |
| RHOBdry | bulk density of dry clay | | | | Details |
| RHOMU | clay corrected matrix density | | | | Details |
| ROMA_CPX | apparent matrix density | | | | Details |
| RHOBCL | bulk density of clay | | | | Details |
| RHOMA | matrix density | | | | Details |
| RHOF | fluid density | | | | Details |
| ROMU_CPX | clay/gas corrected matrix density | | | | Details |
| rl | Reference Log | | | | Details |
| CTR | Click Through Rate | | | | Details |
| RPM | Revenue Per Thousand Impressions | | | | Details |
| RS | Restgas | Residual gas | | | Details |
| DDR | Deutsche Demokratische Republik | East Germany, formally the German Democratic Republic or GDR | | | Details |
| GDR | German Democratic Republic | East Germany, formally the German Democratic Republic | | | Details |
| FRG | Federal Republic of Germany | West Germany | | | Details |
| grd | Grid | | | | Details |
| grf | Graph | | | | Details |
| mrk | Marker Data | | | | Details |
| par | Parser Data | | | | Details |
| prd | Monthly Production | | | | Details |
| qry | Query | | | | Details |
| rh | Report Header | | | | Details |
| rpt | Report | | | | Details |
| srt | Sort Data | | | | Details |
| xrf | Cross-Reference Data | | | | Details |
| IRC | Internal Reserves Committee | | | | Details |
| RFD | Radioactive Fluid Density | | | | Details |
| SGR | Scintillation Gamma Ray | | | | Details |
| ART | Mono Conductor Addressable Release Tools | | | | Details |
| SKR | Sandkammerrohr | Sand Chamber (sand trap) | | | Details |
| DRAD | Drainage Radii | | | | Details |
| LRMC | Long Run Marginal Cost | | | | Details |
| BR | Bruttoraten | Gross rate | | | Details |
| ZR | Zielrate | Target rate | | | Details |
| RM | Reservoir Management | | | | Details |
| RM | Ring Messer | Gauge cutter | | | Details |
| rep | representative | | | | Details |
| Bleiabdruck | Impression Block | Impression Block | | | Details |
| RGL | Rohr- und Gerätelager | Tubular and tools warehouse | | | Details |
| RP | RePerforation | | | | Details |
| GRI | Gross Rate Increase | | | | Details |
| GRD | Gross Rate Decrease | | | | Details |
| DR | Druck | Pressure | | | Details |
| Drrep | Druck Representativ | representative Pressure | | | Details |
| Prc | Recovery Chance | | | | Details |
| Pr | Chance of Realization | | | | Details |
| CSRA | Cost & Schedule Risk Analysis | | | | Details |
| recov | Recoverable | | | | Details |
| Sur | Surface | | | | Details |
| TR | Tubing Reel | | | | Details |
| FSRU | Floating Storage and Regasification Unit | | | | Details |
| SPRs | strategic petroleum reserves | | | | Details |
| WRM | Well and Reservoir Management | | | | Details |
| TRI | Target Rate Increase | | | | Details |
| TRD | Target Rate Deccrease | | | | Details |
| EGR | Enhanced Gas Recovery | | | | Details |
| IGR | Improved Gas Recovery | | | | Details |
| IRD | Injection Rate Decrease | | | | Details |
| IRI | Injection Rate Increase | | | | Details |
| PR | Peer Review | | | | Details |
| PRR | Peer Review Report | | | | Details |
| ERM | Exploration Region Manager | | | | Details |
| KRL | Konzern Richtlinien | Corporate Standard | | | Details |
| RS | Rundschreiben | Circular Letter | | | Details |
| E&R | Exploration & reservoir Management | | | | Details |
| E & R | Exploration & reservoir Management | | | | Details |
| Grubenfeld | License to produce (During and before WWII, no production tax applicable) | | | | Details |
| Förderzins | Production tax | | | | Details |
| TRSSSV | Tubing Retrievable Subsurface Safety Valve | | | | Details |
| FGPR | Field Gas Production Rate | | | | Details |
| WWGR | Well Water Gas Ratio | | | | Details |
| WGPR | Well Gas Production Rate | | | | Details |
| FWGR | Field Water Gas Ratio | | | | Details |
| RPM | Revolutions Per Minute | | | | Details |
| ORI | Oil Rate Increase | | | | Details |
| ORD | Oil Rate Decrease | | | | Details |
| WRI | Water Rate Increase | | | | Details |
| WRD | Water Rate Decrease | | | | Details |
| RSM | Riemenscheibe Motor | motor with Pulley, motor sheaves | | | Details |
| RS | Riemenscheibe | Pulley, motor sheaves | | | Details |
| OGR | Oil Gas Ratio | | | | Details |
| vorb. | Vorbereitung | Get it ready | | | Details |
| Überlauf | overflowing | Over flowing | | | Details |
| VHR | Versa Trieve packer | Halliburton Production packer | | | Details |
| PROJ | Project for evaluation | | | | Details |
| Rat hole | In the context of a drilling rig, a rat hole is the hole through the rig floor where the kelly can be stored when it has to be disconnected | | | | Details |
| Rat hole | In the context of a well, a rat hole is the hole below the pay zone. Commonly drilled to drop off perforating guns of a gathering or sump area for liquids to separate from gas prior to being pumped. | | | | Details |
| ER | Enhanced Recovery | | | | Details |
| RED | Revisions-Extensions & Discoveries | | | | Details |
| CR | Contingent Resources | | | | Details |
| PR | Prospective Resources | | | | Details |
| ROIP | Remaining oil in place | | | | Details |
| HR | Homogeneous Reservoir | | | | Details |
| PRF | Pseudo-Radial Flow | | | | Details |
| $/yr | U.S. dollars per year | U.S. dollars per year | Dollar pro Jahr | dollars américains par an | Details |
| A/CLR | air cooler | air cooler | Klimaanlage | refroidisseur d'air | Details |
| A/R | accounts receivable | accounts receivable | Accounts erhaltbar | comptes débiteurs | Details |
| AAIOR | annualized average incremental oil rate | annualized average incremental oil rate | annualisierten durchschnittlichen zusätzlichen Ölrate | taux moyen annualisé de pétrole supplémentaire | Details |
| AAR | After Action Review (What went right/wrong, dif next time) | After Action Review (What went right / wrong, dif next time) | After Action Review (Was richtig / falsch, DIF nächste Mal ging) | Après action (ce qui a bien / mal, dif prochaine fois) | Details |
| AAR | after action review | after action review | nach Überprüfung der Maßnahmen | après action | Details |
| AAR | Association of American Railroads | Association of American Railroads | Association of American Railroads | Association of American Railroads | Details |
| AARA | Amsterdam-Antwerpen-Rotterdam Area | Amsterdam-Antwerp-Rotterdam Area | Amsterdam-Antwerpen-Rotterdam Umgebung | Amsterdam-Anvers-Rotterdam Area | Details |
| abrsi | jet abrasive jet | jet abrasive jet | Strahlmittelstrahl | jet jet abrasif | Details |
| Abr | Abrechnung | Invoice | | | Details |
| Vorj | Vorherige Jahr | previous year | | | Details |
| TVDRT | True Vertical Depth referenced to Rotary Table | | | | Details |
| MDRT | Measured Depth referenced to Rotary Table | | | | Details |
| SRI | Sustainable and Responsible Investment | | | | Details |
| SRIs | Social Responsible Investors | | | | Details |
| SRI | Social Responsible Investor | | | | Details |
| TSR | Total Shareholder Return | | | | Details |
| MMt/yr | Million Tonnes per year | | | | Details |
| i.d.R. | in der Regel | Generally, as a rule | | | Details |
| i.d.R. | in der Reserve | back up | | | Details |
| idr | in der Regel | Generally, as a rule | | | Details |
| idr | in der Reserve | back up | | | Details |
| WGIR | Well Gas Injection Rate | | | | Details |
| FGIR | Field Gas Injection Rate | | | | Details |
| WWIR | Well Water Injection Rate | | | | Details |
| FWIR | Field Water Injection Rate | | | | Details |
| OIR | Oil Injection Rate | | | | Details |
| WWPR | Well Water Production Rate | | | | Details |
| FWPR | Field Water Production Rate | | | | Details |
| WOPR | Well Oil Production Rate | | | | Details |
| FOPR | Field Oil Production Rate | | | | Details |
| RGV | Rest Gas Volume | | | | Details |
| WWGR | Well Water Gas Ratio | | | | Details |
| WWOR | Well Water Oil Ratio | | | | Details |
| WGOR | Well Gas Oil Ratio | | | | Details |
| FWGR | Field Water Gas Ratio | | | | Details |
| FWOR | Field Water Oil Ratio | | | | Details |
| FGOR | Field Gas Oil Ratio | | | | Details |
| FOPR | Field Oil Production Rate | | | | Details |
| GVPR | Group Volume Production Rate | | | | Details |
| RTIT | Region Tracer Injection Total | | | | Details |
| COFR | Connection Oil Flow Rate | | | | Details |
| ROIP | Region Oil In Place | | | | Details |
| BPR | Block PRessure | | | | Details |
| FAQR | Field AQuifer Influx Rate | | | | Details |
| FPR | Field Average Pressure | | | | Details |
| RRM | Reserve Replacement Matrix | | | | Details |
| PSR | PETRO SANAT Raman | | | | Details |
| HRP | Hydrocarbon Requirement Planning | | | | Details |
| RSH | Resistivity of Shale | | | | Details |
| Kanone Abwerfen | Gun release | | | | Details |
| AR | Automatic Release | | | | Details |
| KOGR | Korn Grosse | Grain size distribution | | | Details |
| RMS | Reservoir Modeling System | | | | Details |
| SURE | Name fo a reservoir simulating software | | | | Details |
| LTR | Long Term Rating | | | | Details |
| STR | Short Term Rating | | | | Details |
| PIR | Profit to Investment Ratio | | | | Details |
| PVR | Present Value Ratio | | | | Details |
| HPVR | Hydrocarbon Pore Volume Reduction | | | | Details |
| RTPO | Real-Time Production Optimization | | | | Details |
| RROR | Real Terms Rate of Return | | | | Details |
| RGIP | Reservoir Gas In Place | | | | Details |
| DDSR | Daily Drilling Summary Report | | | | Details |
| RDP | Reservoir Development Plan | | | | Details |
| FRDP | Field ReDevelopment Plan | | | | Details |
| TRZ | Turbinenradgaszähler | Spinner type flow meter | | | Details |
| TVR | Total Volume Returned | | | | Details |
| SRVC | Service Company | | | | Details |
| RAP | Rig Action Plan | | | | Details |
| RCF | Reservoir Cubic Feet | | | | Details |
| RM3 | Reservoir Cubic meter | | | | Details |
| Steigrohr | Tubing | Tubing | | | Details |
| DRMS | Document and Records Management System | | | | Details |
| RDS | Royal Dutch Shell | | | | Details |
| PortMan | Portfolio Management | | | | Details |
| PPR | Post Peer Review | | | | Details |
| RES | Reservoir Engineers | | | | Details |
| SWGR | Solution Water Gas Ratio | | | | Details |
| MWGR | Minimum Water Gas Ratio | | | | Details |
| TRIS | Travel Risk Intelligence Service platform | | | | Details |
| SDR | Standard Dimension Rate | | | | Details |
| ADR | Accord européen relatif au transport international des marchandises Dangereuses par Route | European Agreement concerning the International Carriage of Dangerous Goods by Road | | | Details |
| RDF | Rotary Drilling floor | | | | Details |
| RDD | Reservoir Description and Dynamics | | | | Details |
| PRT | Permeability Reduction Testing | | | | Details |
| TLRF | Technical Limit Recovery Factor | | | | Details |
| qra | quantitative risk analysis | | | | Details |
| FRE | Frequency | | | | Details |
| RETV | Retrievable | | | | Details |
| SRV | Stimulated Reservoir Volume | | | | Details |
| DRE | Development Reservoir Engineer | | | | Details |
| OPRES | OMV Petroleum Resources Evaluation Standard | | | | Details |
| FNR | Future Net Revenue | | | | Details |
| CRC | Corporate Reserves Committee | | | | Details |
| QRE | Qualified Reserves Estimators | | | | Details |
| EURF | Expected Ultimate Recovery Factor | | | | Details |
| ROT | Redundant, Obsolete, Trivial | | | | Details |
| TRO | Test Rack Opening (pressure) | | | | Details |
| HRP | Hydraulic Packer (Halliburton) | | | | Details |
| CPOR | Core porosity | | | | Details |
| CPERM | Core Permeability | | | | Details |
| (bbl/d)/(rev/s) | GeoFrame legacy unit | | | | Details |
| (m3/d)/(rev/s) | GeoFrame legacy unit | | | | Details |
| (m3/h)/(rev/s) | GeoFrame legacy unit | | | | Details |
| (m3/s)/(rev/s) | GeoFrame legacy unit | | | | Details |
| (MCF/d)/(rev/s) | (thousand cubic feet per day) per (revolution per second) | | | | Details |
| (rev/s)/(ft/min) | GeoFrame legacy unit | | | | Details |
| (rev/s)/(m/min) | GeoFrame legacy unit | | | | Details |
| (rev/s)/(m/s) | GeoFrame legacy unit | | | | Details |
| 1/bar | inverse bar | | | | Details |
| ACRE | acre | | | | Details |
| acre | acre | | | | Details |
| ACRE.FT | acre foot | | | | Details |
| acre.ft | acre foot | | | | Details |
| ARA | Argentinian austral | | | | Details |
| BAR | bar | | | | Details |
| bar | bar | | | | Details |
| bar/h | bar per hour | | | | Details |
| bar/km | bar per kilometer | | | | Details |
| bar/m | bar per meter | | | | Details |
| bar-1 | GeoFrame legacy unit | | | | Details |
| BAR2 | bar squared | | | | Details |
| bar2 | bar squared | | | | Details |
| bar2/cp | GeoFrame legacy unit | | | | Details |
| bar2/cP | bar squared per centipoise | | | | Details |
| BARH | bar per hour | | | | Details |
| BARN | barn | | | | Details |
| barn/cm3 | GeoFrame legacy unit | | | | Details |
| bbl/(acre.ft) | barrel per acre per foot | | | | Details |
| bbl/acre | barrel per acre | | | | Details |
| bbl/acre.ft | GeoFrame legacy unit | | | | Details |
| BBL/HR | barrel per hour | | | | Details |
| BR/M | bar per meter | | | | Details |
| BRC | Brazilian cruzado | | | | Details |
| CENTIMETER | centimeter | | | | Details |
| CENTIMETERS | centimeter | | | | Details |
| CENTIMETRE | centimeter | | | | Details |
| CENTIMETRES | centimeter | | | | Details |
| CFPR | cubic foot per radian | | | | Details |
| CMPR | cubic meter per radian | | | | Details |
| CRC | Costa Rican colon | | | | Details |
| D/HR | degree per hour | | | | Details |
| darcy | darcy (GeoFrame legacy unit) | | | | Details |
| DARCY | darcy | | | | Details |
| darcy.m | GeoFrame legacy unit | | | | Details |
| degC/bar | degree celsius per bar | | | | Details |
| DEGR | degree rankine | | | | Details |
| degR | degree rankine | | | | Details |
| DEGREE | degree (angle) | | | | Details |
| degrees | degree (angle) | | | | Details |
| DEGREES | degree (angle) | | | | Details |
| F/HR | foot per hour | | | | Details |
| FARA | farad | | | | Details |
| FRF | French franc | | | | Details |
| ft/hr | foot per hour | | | | Details |
| FT2/HR | square foot per hour | | | | Details |
| FT3/HR | cubic foot per hour | | | | Details |
| ft3/rad | cubic foot per radian | | | | Details |
| GR | gram | | | | Details |
| GRAD | grad (1/100 of right angle) | | | | Details |
| Grad | gigaradian | | | | Details |
| grad | grad (1/100 of right angle) | | | | Details |
| GRAM | gram | | | | Details |
| GRAMS | gram | | | | Details |
| gravit | acceleration due to earth gravity | | | | Details |
| GRAY | gray | | | | Details |
| GRD | Grecian drachma | | | | Details |
| hbar | hectobar | | | | Details |
| HOURS | hour | | | | Details |
| hrs | hour | | | | Details |
| IBAR | inverse bar | | | | Details |
| IRR | Iranian rial | | | | Details |
| KILOGRAM | kilogram | | | | Details |
| KILOGRAMS | kilogram | | | | Details |
| KILOMETER | kilometer | | | | Details |
| KILOMETERS | kilometer | | | | Details |
| KILOMETRE | kilometer | | | | Details |
| KILOMETRES | kilometer | | | | Details |
| km3/h.m.bar | GeoFrame legacy unit | | | | Details |
| krad | kiloradian | | | | Details |
| KRW | South Korean won | | | | Details |
| L/bar | liter per bar | | | | Details |
| L/BR | liter per bar | | | | Details |
| linkClarke | Link (Clarke) | | | | Details |
| LITER | liter | | | | Details |
| LITERS | liter | | | | Details |
| LITRE | liter | | | | Details |
| LKR | Sri Lanka rupee | | | | Details |
| M/HR | meter per hour | | | | Details |
| m3/(d.bar) | cubic meter per day per bar | | | | Details |
| m3/(d.m.bar) | cubic meter per day per meter per bar | | | | Details |
| m3/(h.bar) | cubic meter per hour per bar | | | | Details |
| m3/(h.m.bar) | cubic meter per hour per meter per bar | | | | Details |
| m3/bar | cubic meter per bar | | | | Details |
| m3/d.bar | GeoFrame legacy unit | | | | Details |
| m3/d.m.bar | GeoFrame legacy unit | | | | Details |
| m3/h.bar | GeoFrame legacy unit | | | | Details |
| m3/h.m.bar | GeoFrame legacy unit | | | | Details |
| m3/rad | cubic meter per radian | | | | Details |
| mbar | millibar | | | | Details |
| METER | meter | | | | Details |
| METERS | meter | | | | Details |
| METRE | meter | | | | Details |
| METRES | meter | | | | Details |
| Mft3/acre | GeoFrame legacy unit | | | | Details |
| Mft3/acre.ft | GeoFrame legacy unit | | | | Details |
| MICROSECOND | microsecond | | | | Details |
| MICROSECONDS | microsecond | | | | Details |
| MILLIDARCY | millidarcy | | | | Details |
| MILLIGRAM | milligram | | | | Details |
| MILLILITER | milliliter | | | | Details |
| MILLILITERS | milliliter | | | | Details |
| MILLILITRE | milliliter | | | | Details |
| MILLILITRES | milliliter | | | | Details |
| MILLIMETER | millimeter | | | | Details |
| MILLIMETERS | millimeter | | | | Details |
| MILLIMETRE | millimeter | | | | Details |
| MILLIMETRES | millimeter | | | | Details |
| mm/yr | GeoFrame legacy unit | | | | Details |
| MORS | microhm root second | | | | Details |
| Mrad | megaradian | | | | Details |
| mrad | milliradian | | | | Details |
| MRAY | megarayl | | | | Details |
| Mrayl | megarayl | | | | Details |
| MRO | Mauritanian ouguiya | | | | Details |
| MVR | Maldives rufiyaa | | | | Details |
| NPR | Nepalese rupee | | | | Details |
| OER | oersted | | | | Details |
| oersted | GeoFrame legacy unit | | | | Details |
| OMR | Omani rail | | | | Details |
| PKR | Pakistan rupee | | | | Details |
| PRPA | pico inverse pascal | | | | Details |
| QUART | quart | | | | Details |
| R/GA | revolution per gallon | | | | Details |
| R/KF | revolution per thousand feet | | | | Details |
| R/L | revolution per liter | | | | Details |
| R/M3 | revolution per cubic meter | | | | Details |
| RA/F | radian per foot | | | | Details |
| RA/M | radian per meter | | | | Details |
| RAD | radian | | | | Details |
| rad | radian | | | | Details |
| rad.s/(m.s) | (radian per second) per (meter per second) | | | | Details |
| rad/ft | radian per foot | | | | Details |
| rad/ft3 | radian per cubic foot | | | | Details |
| rad/m | radian per meter | | | | Details |
| rad/m3 | radian per cubic meter | | | | Details |
| rad/s | radian per second | | | | Details |
| RADIAN | radian | | | | Details |
| RADIANS | radian | | | | Details |
| rayl | rayl | | | | Details |
| RD/S | radian per second | | | | Details |
| REV | revolution (cycle) | | | | Details |
| rev/1000ft | GeoFrame legacy unit | | | | Details |
| rev/min | GeoFrame legacy unit | | | | Details |
| rev/s | GeoFrame legacy unit | | | | Details |
| RKPA | inverse kilopascal | | | | Details |
| ROL | Romainian leu | | | | Details |
| RPA | inverse pascal | | | | Details |
| rpm | revolution per minute | | | | Details |
| RPM | revolution per minute | | | | Details |
| RPSI | micro inverse pound per square inch | | | | Details |
| RS2M | (revolution per second) per (meter per second) | | | | Details |
| RSFM | (revolution per second) per (foot per minute) | | | | Details |
| RSMM | (revolution per second) per (meter per minute) | | | | Details |
| RSMS | (radian per second) per (meter per second) | | | | Details |
| SAR | Saudi riyal | | | | Details |
| SCR | Seychelles rupee | | | | Details |
| SR | steradian | | | | Details |
| sr | steradian | | | | Details |
| SRG | Suriname guilder | | | | Details |
| SUR | CIS rouble | | | | Details |
| TRL | Turkish lira | | | | Details |
| ubar | microbar | | | | Details |
| urad | microradian | | | | Details |
| URPA | micro inverse pascal | | | | Details |
| USTR | micrometer per meter (microstrain) | | | | Details |
| XDR | SDR, international monetary fund | | | | Details |
| YARD | yard | | | | Details |
| yardIndian | Yard (Indian) | | | | Details |
| YARDS | yard | | | | Details |
| yardSears | Yard (Sears) | | | | Details |
| YR | annum (sidereal year) | | | | Details |
| ZRZ | Zaire zaire | | | | Details |
| ATR | Resistivity Deep Induction | | | | Details |
| CGR | Uran_corrected gamma ray | | | | Details |
| CNRAT | CN Ratio | | | | Details |
| CNPOR | CN selected Porosity | | | | Details |
| CNPORU | CN Limestone Porosity uncorrected | | | | Details |
| CPOR | Core Porosity | | | | Details |
| DRHO | Bulk Density Correction | | | | Details |
| DTMETRIC | Delta T Sonic in Meter | | | | Details |
| GR | Gamma Ray | | | | Details |
| GR_IX | GR index = normalized 0-1 | | | | Details |
| GRCA | Calibrated Gamma Ray | | | | Details |
| GRCH | Gamma Ray , Cased Hole | | | | Details |
| GRS | Gamma Ray from Sonic | | | | Details |
| GRTC | Gamma Ray Total Counts, CountRate | | | | Details |
| HART | Deep Resistivity Rt from array Laterolog | | | | Details |
| HCGR | HNGS Computed Gamma Ray | | | | Details |
| HSGR | HNGS Standard Gamma Ray | | | | Details |
| HTPR | HNGS Thorium/Potassium Ratio | | | | Details |
| HTUR | HNGS Thorium/Uranium Ratio | | | | Details |
| HURA | HNGS Formation Uranium Concentration | | | | Details |
| HUPR | HNGS Uranium/Potassium Ratio | | | | Details |
| HPRA | HRDD Photoelectric Factor Correction | | | | Details |
| HRLD | Deep Resistivity high res. LLD | | | | Details |
| HRLS | Resistivity high res. LLS | | | | Details |
| IGR | Isotope-GR | | | | Details |
| M2R1 | Resistivity resolution matched 2 ft. 10 in. | | | | Details |
| M2R2 | Resistivity resolution matched 2 ft. 20 in. | | | | Details |
| M2R3 | Resistivity resolution matched 2 ft. 30 in. | | | | Details |
| M2R6 | Resistivity resolution matched 2 ft. 60 in. | | | | Details |
| M2R9 | Resistivity resolution matched 2 ft. 90 in. | | | | Details |
| M2RX | Resistivity resolution matched 2 ft. 120 in. | | | | Details |
| MNOR | Resistivity Micro Normal 2in | | | | Details |
| NPOR | Enhanced TNPH | | | | Details |
| PERF | Perforation flag | | | | Details |
| PERM | Complex Lithology Oil Permeability | | | | Details |
| PSR | Resistivity phase-shift | | | | Details |
| R25P | Resistivity 25in. phase-shift | | | | Details |
| R55A | Resistivity 55in. Attenuation | | | | Details |
| RACLM | Resistivity LWD deep | | | | Details |
| RD | Deep Resistivity | | | | Details |
| RD01 | Deep Resistivity (digitized 0-20) | | | | Details |
| RD1 | Deep Resistivity (digitized 0-200) | | | | Details |
| RD10 | Deep Resistivity (digitized 0-2000) | | | | Details |
| RHGA | Apparent Grain Density | | | | Details |
| RHO | Density from Standardlog | | | | Details |
| RHOB | Bulk density | | | | Details |
| RHOZ | Bulk density | | | | Details |
| RING | BH compens. LWD Ring Resistivity | | | | Details |
| RMLL | Resistivity from Microlaterolog | | | | Details |
| ROBB | Bulk Density, Bottom Quadrant | | | | Details |
| ROP | Rate of Penetration | | | | Details |
| RPCHM | Resistivity, Memory 2MHZ Comp. Borehole | | | | Details |
| RS | Resistivity Shallow from Standardlog | | | | Details |
| RSAH | Shallow Attenuation Resistivity from 2 MHZ frequ. | | | | Details |
| RSAL | Shallow Attenuation Resistivity from 500 KHZ frequ. | | | | Details |
| RSPH | Shallow Phase Resistivity from 2 MHZ frequ. | | | | Details |
| RMPH | Medium Phase Resistivity from 2 MHZ frequ. | | | | Details |
| RDPH | Deep Phase Resistivity from 2 MHZ frequ. | | | | Details |
| RSPL | Shallow Phase Resistivity from 500 KHZ frequ. | | | | Details |
| RMPL | Medium Phase Resistivity from 500 KHZ frequ. | | | | Details |
| RDPL | Deep Phase Resistivity from 500 KHZ frequ. | | | | Details |
| RMAH | Medium Attenuation Resistivity from 2 MHZ frequ. | | | | Details |
| RDAH | Deep Attenuation Resistivity from 2 MHZ frequ. | | | | Details |
| RMAL | Medium Attenuation Resistivity from 500 KHZ frequ. | | | | Details |
| RDAL | Deep Attenuation Resistivity from 500 KHZ frequ. | | | | Details |
| RT | Resistivity computed deep | | | | Details |
| RT_212L | Resistivity filtered 212L | | | | Details |
| RXO | Resistivity Rxo from Microlog | | | | Details |
| RXO8 | Resistivity 8in-Rxo | | | | Details |
| RXOZ | Resistivity 2in sampled computed Rxo | | | | Details |
| SGR | GR (total) from NGT | | | | Details |
| TPRA | Thorium-Potassium Ratio | | | | Details |
| TURA | Thorium-Uranium Ratio | | | | Details |
| UPRA | Uranium-Potassium Ratio | | | | Details |
| ZCOR | Density correction | | | | Details |
| THOR | Thorium Concentration | | | | Details |
| URAN | Uranium Concentration | | | | Details |
| DRHO | Bulk Density Correction | | | | Details |
| GR | Gamma Ray | | | | Details |
| HART | True Formation Resistivity from HALS/MCFL Measurements | | | | Details |
| NPOR | Neutron Porosity | | | | Details |
| RD | Resistivity Deep from Standardlog (Petro Standardlog) | | | | Details |
| RES_BM | Medium Button Resistivity | | | | Details |
| RES_RING | Ring Resistivity | | | | Details |
| RHO | Density from Standardlog (Petro Standardlog) | | | | Details |
| RHOB | Bulk Density | | | | Details |
| RHOZ | HRDD Standard Resolution Formation Density | | | | Details |
| RMIC | Micro Resistivity | | | | Details |
| ROBB | Bulk Density, Bottom Quadrant | | | | Details |
| RPCHM | Resistivity, Memory 2MHZ compensated Borehole | | | | Details |
| RM | Resistivity Medium from Standardlog (Petro Standardlog) | | | | Details |
| RMLL | Resistivity from Micro Laterolog | | | | Details |
| RS | Resistivity Shallow from Standardlog (Petro Standardlog) | | | | Details |
| RT | True Resistivity | | | | Details |
| RXO | Resistivity Rxo from Microlog | | | | Details |
| RXOZ | Invaded Formation Resistivity filtered at 18 inches | | | | Details |
| THOR | Thorium (Petro Standardlog) | | | | Details |
| URAN | Uranium (Petro Standardlog) | | | | Details |
| CPOR | Core Porosity | | | | Details |
| PERM | Complex Lithology Oil Permeability | | | | Details |
| PHIE_orig | | | | | Details |
| RHGA | Apparent Grain Density | | | | Details |
| RXO | Resistivity from Microlog | | | | Details |
| VCAR | Volume Fraction of Carbonate Relative to Total Volume | | | | Details |
| ALARP | As Low As Reasonable Practicable | | | | Details |
| CTR | Cost-Time-Resource Sheet | | | | Details |
| DCR | Design & Construction Regulations | | | | Details |
| DQAR | Desing Qality assurance Review | | | | Details |
| EPIC Contract | Engineer, Procure, Install and Commission | | | | Details |
| EWRM | Enterprise Wide Risik Management | | | | Details |
| IPR | Independend Peer Review | | | | Details |
| IRPA | Individual Risk Per Annum (HSEQ) | | | | Details |
| ISIR | Individiual-Specific Individual Risk (HSEQ) | | | | Details |
| LSIR | Location-Specific Individual Risk (HSEQ) | | | | Details |
| MAR | Management & Administration Regulations | | | | Details |
| MFR | Multi Disciplinary Field Review | | | | Details |
| MTTR | Mean Time To Repair | | | | Details |
| PDR | Project Development Report | | | | Details |
| PFEER | Prevention of Fire, Explosion, Emergency Response | | | | Details |
| PHSR | Project, Health, Safety Review | | | | Details |
| PIR | Project Implementation Review | | | | Details |
| PSR | Project Safety Review | | | | Details |
| PSRM | Project SafetyReview Model | | | | Details |
| R&R | Roles & Reponsibilities | | | | Details |
| RA | Risk Analysis | | | | Details |
| RCC | Reimbursable Cost Contract | | | | Details |
| RCM | Reliability Centered Maintenance | | | | Details |
| RFT | Request for Tender | | | | Details |
| RIH | Run Into Hole | | | | Details |
| ROM | Reliability, Operability, Maintainability (Engineering) | | | | Details |
| ROS | Required on Site (Date) | | | | Details |
| RRAA | Roles, Responsibilities, Authorities and Accountabilities | | | | Details |
| RT | Regional Team | | | | Details |
| RTV | Real Term Value | | | | Details |
| RWS | Risk Work Shop | | | | Details |
| SCR | Safety Case Regulations | | | | Details |
| SoR | Schedule of Rates | | | | Details |
| TR | Temporary Refuge (HSEQ) | | | | Details |
| TRC | Total Recordable Cases (HSEQ) | | | | Details |
| TRR | Total Recordable Rate (HSEQ) | | | | Details |
| VAR | Value Assurence Review | | | | Details |
| bioturb | bioturbated | | | | Details |
| bkgrd | background | | | | Details |
| bur | burrow | | | | Details |
| Crs | coarse | | | | Details |
| Caren | cavernous | | | | Details |
| Chlor | chloritic | | | | Details |
| Crbly | crumbly | | | | Details |
| Crpxl | cryptocrystalline | | | | Details |
| Crystal | crystals | | | | Details |
| decr | decreasingly | | | | Details |
| fluor | fluorescence | | | | Details |
| frac | fracture | | | | Details |
| fracs | fractures | | | | Details |
| frag | fragmental | | | | Details |
| frags | fragments | | | | Details |
| frm | firm | | | | Details |
| gr | grained | | | | Details |
| grs | grains | | | | Details |
| hydcarb | hydrocarbon | | | | Details |
| incr | increasingly | | | | Details |
| interbed | interbeds | | | | Details |
| intgran | intgranular | | | | Details |
| interafom | informational | | | | Details |
| ker | kerogen | | | | Details |
| mrly | marly | | | | Details |
| ovtrn | overturned | | | | Details |
| perv | pervasive | | | | Details |
| pred | predominantly | | | | Details |
| pyr | pyritic | | | | Details |
| rbly | rubbly | | | | Details |
| rdst | rudstone | | | | Details |
| remnant | remnants | | | | Details |
| resd | residual | | | | Details |
| rhmb | rhombs | | | | Details |
| rhmbc | rhombic | | | | Details |
| rip | ripple | | | | Details |
| rpd | rapid | | | | Details |
| rr | rare | | | | Details |
| rthy | earthy | | | | Details |
| rtlt | rootless | | | | Details |
| red | red | | | | Details |
| rdsh | reddish | | | | Details |
| shkr | shaker | | | | Details |
| srt | sorted | | | | Details |
| strmg | streaming | | | | Details |
| strg | stringer | | | | Details |
| strgs | stringers | | | | Details |
| subrnd | subrounded | | | | Details |
| surv | survey | | | | Details |
| trgh | trough | | | | Details |
| trmln | tourmaline | | | | Details |
| trnsl | translucent | | | | Details |
| trnsp | transparent | | | | Details |
| var | variably | | | | Details |
| ABR | Approval Budget Release | | | | Details |
| AR | Asset Representative | | | | Details |
| ARGE | Arbeitsgemeinschaft | | | | Details |
| ARPR | Annual Review of Petroleum Resources | | | | Details |
| ARR | Annual Reserves Review | | | | Details |
| AWR | Array Wave Resistivity/Gamma Ray | | | | Details |
| BR | Betriebsrat/Works Council | | | | Details |
| CR | Contingent Resources | | | | Details |
| CR | Crystal Reports | | | | Details |
| CR | Change Request | | | | Details |
| CR | Contingent Resources | | | | Details |
| CR | SAP Crystal Reports | | | | Details |
| CRC | Corporate Reserves Committee | | | | Details |
| CRT | Commercial Road Transport | | | | Details |
| CTR | Cost, Time and Resources | | | | Details |
| DPR | Discipline Peer Review | | | | Details |
| EBRD | European Bank of Reconstruction and Development | | | | Details |
| EGRC | Expert Group on Resource Classification | | | | Details |
| EPR | Execution Performance Review | | | | Details |
| EPR | Execution Progress Review | | | | Details |
| ETR | Effective tax rate | | | | Details |
| ETRM | Energy Trading and Risk Management | | | | Details |
| FIRE | First Resource Estimates | | | | Details |
| FRC | Financial Reporting Council | | | | Details |
| FRD | Field Re-Development | | | | Details |
| FRT | Flow Rate Tool | | | | Details |
| HR | Human Resources | | | | Details |
| HRM | Human Resource Manager | | | | Details |
| HRSG | heat recovery steam generator | | | | Details |
| IGR | Independent Gate Review | | | | Details |
| IHRDC | International Human Resource Development Corporation | | | | Details |
| IOR | Increased Oil Recovery | | | | Details |
| KRL | Konzernrichtlinie | | | | Details |
| MARR | Multidisciplinary Asset Review Reloaded | | | | Details |
| MARS | Multidisciplinary Asset Review Summary | | | | Details |
| MPR | Monthly Major Capital Project Reporting | | | | Details |
| MRT-P | Micro Resistivity Tool | | | | Details |
| NAMR | National Agency for Mineral Resources | | | | Details |
| NFR | Naturally Fractured Reservoir | | | | Details |
| NRV | Net Rock Volume | | | | Details |
| OGRC | Oil & Gas Reserves Committee | | | | Details |
| OR | Opportunity Register (from MAR workshop) | | | | Details |
| OR&A | Operations Readiness & Assurance | | | | Details |
| PERM | Petroleum Engineering Regional Manager | | | | Details |
| Photogrammetry | 'photo' = light; 'gram' = drawing; 'metry' = measurement | | | | Details |
| PR | Prospective Resources | | | | Details |
| PR | Peer Review | | | | Details |
| PR | Public relations | | | | Details |
| PRMS | Petroleum Resources Management System | | | | Details |
| ProCo | Project Coordinator | | | | Details |
| PTRS | Project Tracking & Reporting System | | | | Details |
| QPR | Quarterly Performance Review | | | | Details |
| QRC | Qualified Reserves Coordinator | | | | Details |
| QRE | Qualified Reserves Estimator | | | | Details |
| R&M | Refining & Marketing | | | | Details |
| R&R | Reserves & Resources | | | | Details |
| RACI | Responsible, Accountable, Consulted, Informed | | | | Details |
| RAF | Raffinerie Schwechat | | | | Details |
| RB | Running Business | | | | Details |
| RCP | Resource Capacity Planning | | | | Details |
| RDC | Reserves Definition Committee | | | | Details |
| RE | Reservoir Engineering | | | | Details |
| REAL | Regulations Alignment Plattform | | | | Details |
| RED | Revisions, Extensions & Discoveries | | | | Details |
| RFS | request for services | | | | Details |
| ROA | Real Options Analysis | | | | Details |
| ROE | Return on equity | | | | Details |
| ROFA | Return on fixed assets | | | | Details |
| RONA | Return on net assets | | | | Details |
| ROV | Real Options Valuation | | | | Details |
| RoW | Rest of World | | | | Details |
| RRIP | Remaining Recoverable in Place | | | | Details |
| RRR | Reserves Replacement Ratio/Rate | | | | Details |
| RSCT | Rotary Sidewall Coring (HRSCT) | | | | Details |
| RTC | Rail Tank Car | | | | Details |
| RVIP | Initial Recoverable Volume in Place | | | | Details |
| RWI | Restricted Work Injury | | | | Details |
| RWS | Risk Workshop | | | | Details |
| SORP | Statements of Recommended Practice | | | | Details |
| SRU | Sulphur Recovery Unit | | | | Details |
| TAR | Turnaround | | | | Details |
| TRI | Total Recordable Injuries | | | | Details |
| TRIR | Total Recordable Injuries Rate | | | | Details |
| TSR | Total shareholder return | | | | Details |
| ABR | Additional Budget Request | | | | Details |
| AHBRT | Along hole below Rotary Table Datum line from which measurements are taken | | | | Details |
| ARPR | Annual Review of Petroleum Resources | | | | Details |
| ASR | Appraisal & Strategy Review | | | | Details |
| CORAL | Cost Reduction Alliance Malaysia | | | | Details |
| CRP | Commercial Review Panel | | | | Details |
| CSR | Company Site Representative | | | | Details |
| DDOR | Daily Drilling Operations Report | | | | Details |
| EDR | Expectation Developed Reserves | | | | Details |
| ER | Emergency Response | | | | Details |
| ETR | Effective Tax Rate | | | | Details |
| GR/CCL | Gamma Ray/Casing Collar Logging | | | | Details |
| HRM | Human Resource Manager | | | | Details |
| HRS | Human Resources Strategy | | | | Details |
| IRIS | Incident Reporting Information System | | | | Details |
| MIR | Management Information Report | | | | Details |
| MRA | Mini Risk Assessment | | | | Details |
| MRC | Modified Reference Case | | | | Details |
| NBR | Near Bit Reamer | | | | Details |
| OR | Organisational Review | | | | Details |
| OREDA | Offshore Reliability Data | | | | Details |
| PRR | Proved Reserves Replacement (ratio) | | | | Details |
| R/D | Rig Down | | | | Details |
| RBE | Risk Based Estimation | | | | Details |
| RCI | Reservoir Characterisation Instrument | | | | Details |
| RE | Reservoir Engineering | | | | Details |
| RIM | Records & Information Management | | | | Details |
| RLL | Recorded Lithology Log | | | | Details |
| RSBOP | Rotating Spherical blow out preventor | | | | Details |
| RSM | Result Setting Measurement | | | | Details |
| RT | Real Term | | | | Details |
| RWC | Restricted Workday Case | | | | Details |
| SCRP | Slow Circulating Rate Pressure | | | | Details |
| SMART | Specific, Measurable, Achievable, Realistic, Timebound | | | | Details |
| SRA | Structural Reliability Assessment | | | | Details |
| SRC | Slow Circulating Rate. | | | | Details |
| TPR | Top pipe ram | | | | Details |
| TRCF | Total Recordable Cases Frequency | | | | Details |
| TROIF | Total Recordable Occupational Illness Frequency | | | | Details |
| TVDBRT | True vertical depth below rotary table | | | | Details |
| UR | Ultimate Recovery (Reserves) | | | | Details |
| ADR | American Depositary Receipt | | | | Details |
| ARPU | Average revenue per user | | | | Details |
| BRU | Business Recovery Unit | | | | Details |
| CRM | Customer Relationship Management | | | | Details |
| Dir | Director | | | | Details |
| DR | Depositary receipt | | | | Details |
| EAR | Effective annual rate | | | | Details |
| GDR | Global depository receipt | | | | Details |
| GRN | Goods Receipt Note | | | | Details |
| GRNI | Goods Receipt Not Invoiced | | | | Details |
| GMROII | Gross Margin Return on Inventory Investment | | | | Details |
| HR | Human Resources | | | | Details |
| HRD | Human Resource Development | | | | Details |
| HMRC | Her Majesty's Revenue and Customs | | | | Details |
| ICRM | Innovative Customer Relationship Management | | | | Details |
| IFRS | International Financial Reporting Standard | | | | Details |
| IR | Interest Rate typically referring to an IR derivative product | | | | Details |
| IYR | In Year Revenue | | | | Details |
| KIBOR | Karachi Interbank Offered Rate | | | | Details |
| LIBOR | London Interbank Offered Rate | | | | Details |
| MRP | Maximum Retail Price | | | | Details |
| PR | Purchase Requisition | | | | Details |
| RBI | Reserve Bank of India | | | | Details |
| RBA | Reserve Bank of Australia | | | | Details |
| RE | Retained Earnings | | | | Details |
| RFX | Generic name for a Request for Information, Proposal or Quotation | | | | Details |
| ROE | Return on Equity | | | | Details |
| ROIC | Return on Invested Capital | | | | Details |
| RONA | Return on net assets | | | | Details |
| ROS | Return on Sales | | | | Details |
| RR | Resource rent | | | | Details |
| RSP | Retail selling price | | | | Details |
| SIR | Stores Issuance Requisition | | | | Details |
| SROI | Social return on investment | | | | Details |
| TSR | Total Shareholder Return | | | | Details |
| VAR | Value Added Reseller | | | | Details |
| VaR | Value at Risk | | | | Details |
| wrk | work | | | | Details |
