| I | Isotron | | | | Details |
| I | Information | | | | Details |
| I | Inventory | | | | Details |
| I | Inclination | | | | Details |
| I | Stickstoff oder CO2 werden injiziert | | | | Details |
| I | Injection | | | | Details |
| ID | Innen-durch-messer
|| | Interior by Knife | Interior von Messer | Intérieur par Knife | Details |
| JICA | Japan International Cooperation Agency|| | Japan International Cooperation Agency | Japan International Cooperation Agency | Agence japonaise de coopération internationale | Details |
| PIN | Personnal Identifikation Number|| | Personnal Identification Number | Personnal Identifikationsnummer | Personnal Identification Number | Details |
| Bleiabdruck | Impression Block|| | impression block | Eindruck Block | bloc d'impression | Details |
| LI | Liquidationen|| | liquidations | Liquidationen | liquidations | Details |
| GRI | Gross Rate Increase|| | Gross Rate Increase | Bruttoratenerhöhung | Taux brut Augmentation | Details |
| IEU | Internal-External Upset|| | Internal-External Upset | Innen-Außen-Upset | Upset interne-externe | Details |
| IO | Integrated Operations|| | Integrated Operations | Integrated Operations | opérations intégrées | Details |
| ID | Injection rate Decrease|| | Injection rate Decrease | Einspeicherkapazität verkleinern | Diminution du taux d'injection | Details |
| ID | Injection Decrease|| | Injection Decrease | Injection verkleinern | Diminution d'injection | Details |
| STIM | Stimulation|| | stimulation | Stimulation | stimulation | Details |
| SIM | Simulation|| | simulation | Simulation | simulation | Details |
| IH | Injector Head|| | Injector Head | Injektorkopf | Injector Head | Details |
| TID | Target Injection Differential|| | Target Injection Differential | Ziel Injection Differential | Cible Injection Différentiel | Details |
| TRI | Target Rate Increase|| | Target Rate Increase | Target Rate erhöhen | Taux cible Augmentation | Details |
| AAI | Absolute Acoustic Impedance | | | | Details |
| AAIOR | annualized average incremental oil rate | | | | Details |
| ABOI | Assn. of British Oceanic Industries UK | | | | Details |
| abrsi | jet abrasive jet | | | | Details |
| AC SIGN | Acoustic Signature | | | | Details |
| ACGIH | American Conference of Industrial Hygienists | | | | Details |
| ADIPEC | Abu Dhabi International Petroleum Conference | | | | Details |
| AEI | Advanced Energy Initiative | | | | Details |
| AFAIK | As far as I know | | | | Details |
| Afi | Acoustic Fracture Identification | | | | Details |
| AFIT | after federal income tax | | | | Details |
| AGGI | Asab Gas Gathering & Injection | | | | Details |
| AGI | American Geological Institute | | | | Details |
| AGIBA | Agiba Petroleum Company Egypt | | | | Details |
| agim | agglomerate | | | | Details |
| AGIP | Azienda Generale Italiana Petroli S.p.A. (see ENI) Italy | | | | Details |
| AI | Acoustic Impedance | | | | Details |
| AI | Artificial Intellince | | | | Details |
| AI | ASHMORE AND CARTIER ISLANDS | | | | Details |
| AI | ANGUILLA | | | | Details |
| AI&DM | Artificial Inteligence & Data Mining | | | | Details |
| AIA | ANGUILLA | | | | Details |
| AICHE | American Institute of Chemical Engineers | | | | Details |
| AID | Computed Process/Laser | | | | Details |
| AIDA | Asset Integrity Data Assessment System | | | | Details |
| AIDMO | Arab Industrial Development and Mining Organization | | | | Details |
| AIDP | Addendum to Initial Development Plan | | | | Details |
| AIG | Australian Institute of Geoscientists Australia | | | | Details |
| AIME | American Institute of Mining, Metallurgical and Petroleum Engineers | | | | Details |
| AIMP | Asset Integrity Management Plan | | | | Details |
| AIMS | Asset Integrity Management System | | | | Details |
| AIOC | Azerbaijan International Operating Company | | | | Details |
| AIP | Annular Isolation Packer | | | | Details |
| AIP | Aeronautical Information Publication (UAE) | | | | Details |
| AIP | Australian Institute of Petroleum | | | | Details |
| AIP | Australian Institute of Petroleum Australia | | | | Details |
| AIPAC | American Israeli Public Affairs Committee | | | | Details |
| AIPG | American Institute of Professional Geologists | | | | Details |
| AIPK | American International Petroleum Kazakhstan Kazakhstan | | | | 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 |
| AIS | Annular Isolation System (Completions) | | | | Details |
| AIS | annular isolation sleeve | | | | Details |
| AISI | American Iron and Steel Institute | | | | Details |
| AIT | Array Induction Tool | | | | Details |
| AIT | Array Induction Imager | | | | Details |
| AIT | Array Induction imager Tool | | | | Details |
| AITSI | Arab Internationally Traded Stock Index | | | | Details |
| ALICO | American Life Insurance Company | | | | Details |
| ALIGN | alignment(ing) | | | | Details |
| AMI | area of mutal interest | | | | Details |
| AMI | Area of Mutual Interest | | | | Details |
| AMI | Associazione Mineraria Italiana Italy | | | | Details |
| Aminoil | American Independent Oil Company | | | | Details |
| Anion | an ion with a negative charge | | | | Details |
| ANISC | Alexandria National Iron and Steel Company | | | | Details |
| ANSI | American National Standards Institute | | | | Details |
| AOI | Area Of Interest | | | | Details |
| API | American Petroleum Institute: both the organisation and measure of oil weight (API gravity) in ºAPI | | | | Details |
| API | American Petroleum Institute | | | | Details |
| API | Acquisition, Processing and Interpretation of seismic data | | | | Details |
| API | Anonima Petroli Italiana S.p.A. Italy | | | | Details |
| APIA | Australian Pipeline Industry Assn. Inc. Australia | | | | Details |
| Apicorp | Arab Petroleum Investment Corporation | | | | Details |
| applic | application | | | | Details |
| APTI | Arab Petroleum Training Institute OAPEC | | | | Details |
| Arbift | Arab Bank for Investment and Foreign Trade | | | | Details |
| ARI | Azimuthal Resistivity Image | | | | Details |
| ARI | Azimuthal Resistivity Imager | | | | Details |
| Arig | Arab Insurance Group | | | | Details |
| ASCII | American Standard Code for Information Interchange | | | | Details |
| ASI | ASI Log | | | | Details |
| ASIC | Application Specific Integrated Circuit (SLB, a chip for signal processing of gauges) | | | | Details |
| ASINs | Amazon Standard Identification Numbers | | | | Details |
| ATDNSHINC | Any Time Day/Night Sundays and Holidays INCluded | | | | Details |
| ATLANTICO | Compania Espanola de Petroleos Atlantico S.A. Spain | | | | Details |
| avail | available | | | | Details |
| Azi | Azimuth | | | | Details |
| B.In. | Big Injun | | | | Details |
| B.Riv | Black River | | | | Details |
| bail | bail, bailed | | | | Details |
| bail | bail(ed) | | | | Details |
| BASIC | Beginners All Purpose Symbolic Instruction Code | | | | Details |
| Basin | a large area with a general containment and an often thick accumulation of rock | | | | Details |
| BCCI | Bank of Credit and Commerce International | | | | Details |
| BDI | Both Dates Inclusive | | | | Details |
| BDI | BURUNDI | | | | Details |
| BEI | Biological Exposure Index | | | | Details |
| BFI | Business Frames Implementation | | | | Details |
| BFIT | before federal income tax | | | | Details |
| BGEPIL | British Gas Exploration and Production (India) Limited | | | | Details |
| BGIT | British Gas International Tunisie | | | | Details |
| BHCIP | Bottom Hole Closed In Pressure | | | | Details |
| BHI | Baker Hughes Inteq | | | | Details |
| BHI | Baker Hughes International | | | | Details |
| BHI | Bore Hole Image (logging tool) | | | | Details |
| BHI | Baker Hughes Incorporated | | | | Details |
| BHIP | bottom hole injection pressure | | | | Details |
| BHPI | borehole pressure integrity | | | | Details |
| BHSIP | Bottom Hole Shut In Pressure | | | | Details |
| BHSIP | bottom hole shut-in pressure | | | | Details |
| BHSIP | bottom hale shut in pressure | | | | Details |
| BHSIP | bottom-hole shutin pressure | | | | Details |
| BI | Both Inclusive. | | | | Details |
| BI | BURUNDI | | | | Details |
| BIAT | Banque Internationale Arabe de Tunisie | | | | Details |
| BIB | Bahrain International Bank | | | | Details |
| BiC | Best in Class | | | | Details |
| BID-SUM | bid summary | | | | Details |
| Big. | Bigenerina | | | | Details |
| Big.f. | Bigenerina floridana | | | | Details |
| Big.h. | Bigenerina humblei | | | | Details |
| Big.nod. | Bigenerina nodosaria | | | | Details |
| BIH | BOSNIA AND HERZEGOVINA | | | | Details |
| BIMCO | The Baltic and International Maritime Conference | | | | Details |
| BIN | binary | | | | Details |
| BINXQ | Bond Index Quicklook Log | | | | Details |
| bio | biotite | | | | Details |
| BIOR | Biostratigraphic Range Log | | | | Details |
| BIORE | Biostratigraphy Study Report | | | | Details |
| BIPC | Bandar Imam Petrochemical Complex | | | | Details |
| BIS | Bank for International Settlements | | | | Details |
| BIT | Binary Digit | | | | Details |
| BIT | Bitumen | | | | Details |
| bit | Bitumen, bituminous | | | | Details |
| BITOR | Bitumenes Orinoco S.A. Venezuela | | | | Details |
| BIVDL | BI/DK/WF/Casing Collar Locator/Gamma Ray Log | | | | Details |
| BLI | Bottom of Logging Interval | | | | Details |
| Blin | Blinebry | | | | Details |
| Blk-Li | Black Lime | | | | Details |
| BMCI | Banque Marocaine pour le Commerce et l’Industrie | | | | Details |
| BMI | black malleable iron | | | | Details |
| BOMINFLOT | KG Bominflot Bunkergas fuer Mineraloele mbH & Co. Germany | | | | Details |
| BOSIET | Basic Safety Induction & Emergency Training (see comment) | | | | Details |
| BOSIET | Basic Offshore Safety Induction and Emergency Training | | | | Details |
| bri | bright | | | | Details |
| Brid | bridger | | | | Details |
| brit | brittle | | | | Details |
| Brn Li | brown lime | | | | Details |
| BSI | British Standards Institute | | | | Details |
| BSI | British Standards Institution | | | | Details |
| BSI | British Standards Institute UK | | | | Details |
| BuMInes | Bureau of Mines, U.S. Department of the Interior | | | | Details |
| BVI | Bulk Volume Irreducible | | | | Details |
| BWIPD | Barrels Water Injection Per Day | | | | Details |
| C limit | or Ceiling limit | | | | Details |
| C.I.F. | cost insurance and freight | | | | Details |
| CAIR | Comprehensive Assessment Information Rule (under TSCA) | | | | Details |
| CALI | Caliper Log | | | | Details |
| CALI | Generalized Caliper | | | | Details |
| CALI | General Caliper | | | | Details |
| CALIBR | calibrate, calibration | | | | Details |
| CALIL | Caliper Log | | | | Details |
| Casing) | (Thru | | | | Details |
| CBI | confidential business information | | | | Details |
| CBIL | CBIL Log | | | | Details |
| CBIL | Circumferential Borehole Imaging Log | | | | Details |
| CCFI | Consulting Center for Finance and Investment | | | | Details |
| CCIC | Consolidated Contractors International Company | | | | Details |
| CD-I | Compact Disc-Interactive | | | | Details |
| CDIS | CDI Synthetic Seismic Log | | | | Details |
| CEDIPSA | Compania Espanola Distribuidora de Petroleos S.A. Spain | | | | Details |
| CEIL | Cairn Energy India Limited | | | | Details |
| CGRI | Canadian Gas Research Institute | | | | Details |
| Chim-H | Chimney Hill | | | | Details |
| Chim-R | Chimney Rock | | | | Details |
| Chin | Chinle | | | | Details |
| Chini | General Company for Dinnerware | | | | Details |
| chit | chitin(ous) | | | | Details |
| CI | Chemical Injection | | | | Details |
| CI | Competitive Intelligence | | | | Details |
| CI | Capital Intelligence | | | | Details |
| CI | Corrosion Inhibitor | | | | Details |
| CI | Cone Interference | | | | Details |
| CI | Capital Intensity | | | | Details |
| CI | CHILE | | | | Details |
| CI | COTE D'IVOIRE | | | | Details |
| CI | Casing Inspection/ Electro-Magnetic-Detector | | | | Details |
| CI | cast iron | | | | Details |
| CI | contour interval(map) | | | | Details |
| CI | engine compression-ignition engine | | | | Details |
| CI | Casing Inspection/Electro Magnetic-Detector | | | | Details |
| CIA | Concentration In Air | | | | Details |
| CIB | Commercial International Bank | | | | Details |
| Cib. | Cibicides | | | | Details |
| Cib.h. | Cibicides hazzardi | | | | Details |
| CIBHP | closed in bottom hole pressure | | | | Details |
| CIBP | cast iron bridge plug | | | | Details |
| CIBP | cast-iron bridge plug | | | | Details |
| CICHP | Closed In Casing Head Pressure | | | | Details |
| CID | Chemical Industries Development | | | | Details |
| CIDL | chemical injection downhole lower | | | | Details |
| CIDPP | Closed In Drill Pipe Pressure | | | | Details |
| CIDU | chemical injection downhole upper | | | | Details |
| CIE | crude industrial ethanol | | | | Details |
| CIED | International Center for Education and Development | | | | Details |
| CIEPSA | Compania de Investigacion y Exploraciones Petroliferas, S.A. Spain | | | | Details |
| CIF | Costs Insurance and Freight | | | | Details |
| CIIC | Commercial International Investment Company | | | | Details |
| CIIP | Condensate Initially In Place (Gas Cap/Res) | | | | Details |
| CILD | Conduction Log | | | | Details |
| CIM | Chemical Injection Mandrel/Manifold | | | | Details |
| CIM | Canadian Institute of Mining | | | | Details |
| CIM | Canadian Institute of Mining, Metallurgy and Petroleum | | | | Details |
| CIM | Companie Industrielle Maritime France | | | | Details |
| Cima | Cimarron | | | | Details |
| CIMS | Corrosion and Inspection Management System | | | | Details |
| CIMV | Chemical Injection Metering Valve | | | | Details |
| CIN | Common Interest Network (system on Shell Global Networks) | | | | Details |
| CINSA | Compania Insular del Nitrogena, S.A. Spain | | | | Details |
| CIP | Cement In Place | | | | Details |
| CIP | Carriage and Insurance paid to..... | | | | Details |
| CIP | Chemical Injection Port (for textim pump) | | | | Details |
| CIP | closed-in pressure | | | | Details |
| CIPA | California Independent Petroleum Association | | | | Details |
| CIPCO | Caspian International Petroleum Company | | | | Details |
| CIPF | Central Injection Pump Facility | | | | Details |
| CIPS | Concentration in Process Stream | | | | Details |
| CIPS | Chartered Institute of Purchasing & Supply | | | | Details |
| CIPS | Close Internal Potential Survey | | | | 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 |
| CIS | Commonwealth of Independent States | | | | Details |
| CIS | Customer Instrument Service | | | | Details |
| Cis | Cisco | | | | Details |
| CIS | Customer Instrument Service | | | | Details |
| CIT | Casing Integrity Test | | | | Details |
| CITHP | Closed In Tubing Head Pressure (tubing head pressure when the well is shut in) | | | | Details |
| CITHP | Closed In Tubing Hanger Pressure | | | | Details |
| CIT-OA | casing integrity test – outside annulus | | | | Details |
| CIV | Chemical Injection Valve | | | | Details |
| CIV | COTE D'IVOIRE | | | | Details |
| CIW | Cameron Iron Works | | | | Details |
| CIW | Concept Identific | | | | Details |
| CIWHP | closed in well head pressure | | | | Details |
| Claib | Claiborne | | | | Details |
| Cliff-H | Cliff House | | | | Details |
| CNI | Conoco Norway Norway | | | | Details |
| CNSI | Conoco North Sea Inc. Norway | | | | Details |
| COCHIME | Companie Chimique de la Mediterranee France | | | | Details |
| CONSPAIN | Continental Oil Co. of Spain (Conoco Espanola, S.A.) Spain | | | | Details |
| contrib | contribution | | | | Details |
| CORIB | Coriband Log | | | | Details |
| CPI | Computed Petrophysical Interpretation | | | | Details |
| CPI | Carbon Preference Index | | | | Details |
| CPI | CPI Log | | | | Details |
| CPI | CPI log (computer-processed interpretation) | | | | Details |
| CPI | corrugated plate interceptor | | | | Details |
| CPI | PT Caltex Pacific Indonesia Indonesia | | | | Details |
| CPIA | Cathodic Protection Industry Association | | | | Details |
| CPICB | CPI Coriband Log | | | | Details |
| CPIRE | CPI Report | | | | Details |
| CPSI | casing pressure shut in | | | | Details |
| CQI | Continuous Quality Improvement | | | | Details |
| CRI | COSTA RICA | | | | Details |
| Crin | crinoid(al) | | | | Details |
| Cris | Christellaria | | | | Details |
| crit | critical | | | | Details |
| CS - Filter | Con-Slot Filter | | | | Details |
| CSI | CSI Log | | | | Details |
| CSIA | Compound Specific Isotope Analysis | | | | Details |
| CSID | Casing Size Internal Diameter | | | | Details |
| CSIS | Center for Strategic and International Studies | | | | Details |
| CUI | Corrosion Under Insulation (see comment) | | | | Details |
| Cut Oil | cutting oil | | | | Details |
| Cut Oil Act | cutting oil active-sulfurized-dark | | | | Details |
| Cut Oil Act | cutting oil active-sulfurized-transparent | | | | Details |
| Cut Oil | cutting oil inactive-sulfurize | | | | Details |
| Cut Oil Sol | cutting oil soluble | | | | Details |
| Cut Oil St Mrl | cutting oil straight mineral | | | | Details |
| CWI | Completion & Well Intervention Engineer | | | | Details |
| CWI | Certified Welding Inspector | | | | Details |
| CWIE | Completion & Well Intervention Engineer | | | | Details |
| CYDIP | Cyberdip Log | | | | Details |
| CYDIP | Cyberdip | | | | Details |
| D.I. | diesel index | | | | Details |
| DAIB | daily average injection barrels | | | | Details |
| DARCI | Darci Log | | | | Details |
| DBL SKIN | DouBLe SKINned | | | | Details |
| DCALI | Dual Caliper Log | | | | Details |
| DCI | Downhole Chemical Injection | | | | Details |
| DDI | Direction Difficulty Index | | | | Details |
| DEIb | Diamond Enhanced Insert bit | | | | Details |
| deisobut | deisobutanizer | | | | Details |
| DEMINEX | DEMINEX GmbH Germany | | | | Details |
| DFIT | Diagnostic Fracture Injection Test | | | | Details |
| DHI | Direct Hydrocarbon Imaging | | | | Details |
| DHI | Down Hole Injection | | | | Details |
| DHI | Down Hole Interface | | | | Details |
| DHI | Direct Hydrocarbon Indicators | | | | Details |
| DHIV | DownHole Isolation Valve | | | | Details |
| DHSIT | Down Hole Shut In Tool (for pressure surveys) | | | | Details |
| DI | Difficulty Index | | | | Details |
| DI | Dual Induction | | | | Details |
| dia | diameter | | | | Details |
| diag | diagonal | | | | Details |
| diag | diagram | | | | Details |
| DIAH | Down In A hole | | | | Details |
| DIAL | Differential Absorption Light Detection and Ranging | | | | Details |
| DIAL | Dia-Log | | | | Details |
| diaph | diaphragm | | | | Details |
| diat | diatomite | | | | Details |
| DIB | Dubai Islamic Bank | | | | Details |
| DIBHC | DIS BHC Log | | | | Details |
| dichlor | dichloride | | | | Details |
| DICOL | Distribuidora de Combustiveis e Lubrificantes da Guinea Bissau Lda. Portugal | | | | Details |
| DID | Detonation Interruption Device | | | | Details |
| die | Jaws of rig tongs to hold tight the pipes | | | | Details |
| DIE | Dielectric Analysis | | | | Details |
| DIEGR | Dielectric Gamma Ray Log | | | | Details |
| DIEL | Dielectric Log | | | | Details |
| Dies | the inserts on the rig tong to create grip on pipe (wrongly Dize) | | | | Details |
| diethyl | diethylene | | | | Details |
| DIF | drill in fluids | | | | Details |
| DIF | Drill-In Fluid | | | | Details |
| DIF | drill in fluid | | | | Details |
| Diff | Difference | | | | Details |
| diff | different(ial)(ence) | | | | Details |
| DIFL | Dual Induction Focused Log | | | | Details |
| DIFL | dual injection focus log | | | | Details |
| DIFL | Dual Induction-Focused Log | | | | Details |
| DIFL/GR | Dual Induction Focused Log Gamma Ray | | | | Details |
| DIGANAMEX | Distribuidora de Gas Natural del Estado de Mexico S.A. Mexico | | | | Details |
| DIGAQRO | Distribuidora de Gas de Queretaro S.A. Mexico | | | | Details |
| DIGL | Dual Induction Gamma Log | | | | Details |
| DIL | Dual Induction Log | | | | Details |
| DIL | Dual Induction Laterolog | | | | Details |
| DIL | Dual Induction-Laterologging | | | | Details |
| DIL | Dual Induction SFL Log | | | | Details |
| DIL | Dual Induction Dual Induction Log | | | | Details |
| DILB | Dual Induction BHC Log | | | | Details |
| DILL | Dual Induction Laterolog | | | | Details |
| DILL | Dual Induction Lateral/Dual Induction Focus | | | | Details |
| DILL | Dual Induction Lateral | | | | Details |
| DILLS | Dual Induction Log-LLS | | | | Details |
| DILSL | Dual Induction Log-SLS | | | | Details |
| dilut | diluted | | | | Details |
| DIM | Directional Inertia Mechanism | | | | Details |
| DIM | Demontage/Montage | | | | Details |
| dim | dimension | | | | Details |
| dim | diminish(ing) | | | | Details |
| DIMAH | Direction des Matieres Premiers et des Hydrocarbures France | | | | Details |
| DIMS | Drilling Information Management System | | | | Details |
| DIN | Deutsche Industrie Norm connector | | | | Details |
| Din | Dinwoody | | | | Details |
| DINT | Dip Interpretation | | | | Details |
| DIO | Days Invoice Outstanding | | | | Details |
| DIOCO | DEMINEX Egypt Co. Egypt | | | | Details |
| DIP | Dipmeter Log | | | | Details |
| DIP | High Resolution 4-Arm Diplog | | | | Details |
| DIP | 4 Arm High Resolution Diplog | | | | Details |
| DIP | Dual Induction-Focused Log High Resolution (4-Arm) Diplog® | | | | Details |
| Dip Rec | Dip Log Digital Log Dgt | | | | Details |
| DIPA | diisopropanolamine | | | | Details |
| DIPAR | Dipole Acoustic Report | | | | Details |
| DIPBH | Dipmeter Borehole Log | | | | Details |
| DIPC | Basic Diplog Computation | | | | Details |
| DIPFT | Dipmeter Fast Log | | | | Details |
| DIPLP | Dip Lithology Pressure Log | | | | Details |
| DIPM | Dip Meter | | | | Details |
| DIPM | Dipmeter | | | | Details |
| DIPRE | Dipmeter Report | | | | Details |
| DIPRM | Dip Removal Log | | | | Details |
| DIPSA | Dipmeter Soda Log | | | | Details |
| DIPSK | Dipmeter Stick 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 |
| DIS | DIS-SLS Log | | | | Details |
| Disc | Discorbis | | | | Details |
| disc | discount | | | | Details |
| disc | discover(ed)(ing)(ion) | | | | Details |
| Disc. | grav. Discorbis gravelli | | | | Details |
| Disc. | norm. Discorbis normada | | | | Details |
| Disc. | y. Discorbis yeguaensis | | | | Details |
| disch | discharge | | | | Details |
| DISF | Dual Induction - Spherically Focused | | | | Details |
| DISF | Dual Induction Spherically Focused | | | | Details |
| DISFL | DISFL DBHC Gamma Ray Log | | | | Details |
| dism | disseminated | | | | Details |
| disman | dismantle | | | | Details |
| DISO | Dual Induction Sonic Log | | | | Details |
| DISPESA | Compania Distribuidora de Productos Petroliferos S.A. Spain | | | | Details |
| displ | displaced, displacement | | | | Details |
| dist | distance | | | | Details |
| dist | distillate, distillation | | | | Details |
| dist | district | | | | Details |
| distr | distribute(ed)(ing)(ion) | | | | Details |
| DIT | Dual Induction Tool | | | | Details |
| DIT | Dual Induction | | | | Details |
| DIT | Dual Induction SFL Log | | | | Details |
| DIT | Induction-Spherically Focused Log | | | | Details |
| DITAS | TPAO Marine Tanker Subsidiary Turkey | | | | Details |
| DIT-E | Phasor Induction Log | | | | Details |
| DITH | Down In The Hole | | | | Details |
| DIV | Downhole Isolation Valve | | | | Details |
| DIV | Diverses | | | | Details |
| div | division | | | | Details |
| DJI | DJIBOUTI | | | | Details |
| DLIST | Dip List Log | | | | Details |
| DODI | Diamond Offshore Drilling company | | | | Details |
| DOI | Digital Object Identifier | | | | Details |
| DOI | Department of the Interior | | | | Details |
| DOI | U.S. Department of the Interior | | | | Details |
| DPIL | Dual Phase Induction Log | | | | Details |
| DRI | Drill (kick, H2S) | | | | Details |
| DRI | Drift Log | | | | Details |
| DRI | Dual Resistivity Induction Log | | | | Details |
| DSI | Dipole Shear Sonic Imager | | | | Details |
| DSI | Drilling Superintendent | | | | Details |
| DSI | Dipole Shear Imager | | | | Details |
| DSI | Discrete Smooth Interpolation | | | | Details |
| DSI | dipole sonic | | | | Details |
| DSI | drilling suspended indefinitely | | | | Details |
| DTI | Department of Trade and Industry (United Kingdom) (obsolete; superseded by dBERR, which was then superseded by DECC) | | | | Details |
| DTI | Department of Trade & Industry UK | | | | Details |
| DWLTI | Days Without Lost Time Injury | | | | Details |
| E&I | Engineering & Installation (US DoD) | | | | Details |
| E&I | Environment & Infrastructure | | | | Details |
| E&I | Evaluation & Improvement | | | | Details |
| E&I | Economic and Interstate Importance (roads) | | | | Details |
| E&I | Electrical and Instrumentation (engineering) | | | | Details |
| E&I | Engineering and Integration | | | | Details |
| E&I | Electrical and Instrumentation | | | | Details |
| EBI | Emirates Bank International | | | | Details |
| EBIT | Earnings Before Interest and Taxes (EBIT = Revenue – Operating expenses (OPEX) + Non-operating income) (See comment!) | | | | Details |
| EBITDA | earnings before interest, tax, depreciation and amortization | | | | Details |
| EFGI | EFG Index | | | | Details |
| EFIC | Egyptian Financial and Industrial Company | | | | Details |
| Efire | Electronic Firing Head | | | | Details |
| EGTI | Egyptian German Telecommunications Industry | | | | Details |
| EI | Elastic Impedance | | | | Details |
| EI | Earth Imager | | | | Details |
| EI | IRELAND | | | | Details |
| EIA | Environmental Impact Assessment | | | | Details |
| EIA | Energy Information Agency | | | | Details |
| EIA | Energy Information Administration | | | | Details |
| EIA | Energy Information Administration, division of US Department of Energy | | | | Details |
| EIA | U.S. Energy Information Administration | | | | Details |
| EIA | environmental assessment | | | | Details |
| EIB | European Investment Bank | | | | Details |
| EIC | Engineer In Charge | | | | Details |
| EIGS | Ethopian Institute for General Surveys Ethiopia | | | | Details |
| EIR | environmental impact report | | | | Details |
| EIS | Expandable Isolation Sleeve | | | | Details |
| EIS | environmental impact statement | | | | Details |
| EISA | Egyptian Insurance Supervisory Authority | | | | Details |
| EIT | engineer in training | | | | Details |
| EITS | Eastern International Testing Services | | | | Details |
| EIU | Even If Used. | | | | Details |
| EIVAL | Sociedad de Empreendimentos, Investimentos e Armazenagem de Gases S.A. Portugual | | | | Details |
| ELGI | Eotvos Lorand Geofizikai Intezet (Geophysical Institute of Hungary) Hungary | | | | Details |
| ELIM | eliminate(tor)(ed) | | | | Details |
| EMI | Electromagnetic Imager Tool | | | | Details |
| EMI | Electromagnetic Imaging | | | | Details |
| EMI | Electrical Micro Imaging | | | | Details |
| EMNI | electromagnetic induction | | | | Details |
| EN PI | Enhanced Productivity Index Log | | | | Details |
| Eni | Ente Nazionale Idrocarburi S.p.A. (Italy) | | | | Details |
| ENI | Ente Nazionale Idrocarburi S.p.A. (incorporates Agip) Italy | | | | Details |
| ENIAC | Electronic Numerical Integrator And Computer | | | | Details |
| ENIP | Entreprise Nationale d’Industrie Petrochimique Algeria | | | | Details |
| ENPI | Enhanced Productivity Index Log | | | | Details |
| ENPPI | Engineering for the Petroleum and Process Industries | | | | Details |
| ENPPI | Engineering for the Petroleum and Process Industries Egypt | | | | Details |
| ENVIR | environment | | | | Details |
| EOI | Expression of Interest | | | | Details |
| EONIA | Euro OverNight Index Average | | | | Details |
| EPIC | Engineering, Procurement, Installation and Commissioning | | | | Details |
| EPICO | Engineer Procure Install Construct Operate | | | | Details |
| EPIDORIS | Exploration and Production Integrated Drilling Operations and Reservoir Information System | | | | Details |
| EPIRB | Emergency Position Indicating Radio Beacon | | | | Details |
| equip | equipment | | | | Details |
| equiv | equivalent | | | | Details |
| ERI | ERITREA | | | | Details |
| Eric | Ericson | | | | Details |
| ERIP | European/Russian Council for the Petroleum Industry (—) | | | | Details |
| EROEI | Energy return on energy invested | | | | Details |
| ESHIA | Envinmental Safety Health Impact Assessment | | | | Details |
| ESIT | Electronic Shut In Tool | | | | Details |
| E-SPIR | e-Spare Parts Interchangeable Record | | | | Details |
| ESRI | GIS Software (ESRI) | | | | Details |
| ESRI | Environmental Systems Research Institute | | | | Details |
| et vir | and husband | | | | Details |
| ETIX | Electronic Tickets for flights | | | | Details |
| EUROGIF | European Oil and Gas Innovation Forum | | | | Details |
| EUROPIA | European Petroleum Industry Assn. | | | | Details |
| EVOI | Early Value Of Information | | | | Details |
| EXIM | Export-Import Bank | | | | Details |
| exist | existing | | | | Details |
| expir | expire(ed)(ing)(ation) | | | | Details |
| EZIP | Expandable Zonal Inflow Profiler | | | | Details |
| F DIP | Focused Diplog | | | | Details |
| F.DIS | Free DIScharge | | | | Details |
| F/DIA | flow diagram | | | | Details |
| f/xin | finely crystalline | | | | Details |
| FACIL | facility(ies) | | | | Details |
| FAIFR | first aid injury frequency rate | | | | Details |
| fail | failure | | | | Details |
| fain | faint | | | | Details |
| fair | fair | | | | Details |
| FBHPSI | final bottom-hole pressure, shut-in | | | | Details |
| Fbio | site-specific fraction of organic compounds biodegraded | | | | Details |
| FBIV | Full Bore Isolation Valve (remote pressure activated bottom of tubing flapper valve) | | | | Details |
| FCIBHP | Final Closed In Bottom Hole Pressure | | | | Details |
| FDI | Foreign Direct Investment | | | | Details |
| F-DIA | flow diagram | | | | Details |
| FDIS | Field Data Interface System | | | | Details |
| FEIS | Final Environmental Impact Statement | | | | Details |
| Fertil | Ruwais Fertilizer Industries | | | | Details |
| FERTIL | Ruwais Fertilizer Industries Ltd. Abu Dhabi | | | | Details |
| FFI | Free Fluid Index same as BVM | | | | Details |
| FGIH | finish going in hole | | | | Details |
| FGIIP | Free Gas Initially In Place | | | | Details |
| FGIW | finish going in with | | | | Details |
| FHINC | Friday Holidays INCluded. (Muslim Countries) | | | | Details |
| FI | Flow Indicator | | | | Details |
| FI | final inspection | | | | Details |
| FI | Financial Interest (see comment) | | | | Details |
| FI | Fluid Inclusion | | | | Details |
| FI | Fully Implicit | | | | Details |
| FI | FINLAND | | | | Details |
| FI | Farm In | | | | Details |
| FI | Fracture Index | | | | Details |
| FI(M) | free issue (materials) | | | | Details |
| FIAC | Four Independent Arm Caliper | | | | Details |
| FIB | Faysal Islamic Bank | | | | Details |
| fib | fibrous | | | | Details |
| FIC | flow-indicating controller | | | | Details |
| FID | Final Investment Decision | | | | Details |
| FiFI | Fire Fighting | | | | Details |
| FIFO | First In First Out | | | | Details |
| FIFR | fatality incidence frequency rate | | | | Details |
| FIFRA | Federal Insecticide, Fungicide, and Rodenticide Act | | | | Details |
| fig | figure | | | | Details |
| FIGAZ | Federation de l‘Industrie du Petrole France | | | | Details |
| FIH | fluid in hole | | | | Details |
| FIH | finished in hole | | | | Details |
| FIL | FIL Log | | | | Details |
| FIL | Sidewall Frac Log | | | | Details |
| FIL | Fracture Identification Log | | | | Details |
| filt | filtrate | | | | Details |
| FIN | FINLAND | | | | Details |
| fin | final | | | | Details |
| fin | finish(ed) | | | | Details |
| fin | drlg finished drilling | | | | Details |
| FIN | GR finish grade | | | | Details |
| FINA | PetroFina S.A. (now TotalFinaElf) Belgium | | | | Details |
| FINCO | Finance Committee | | | | Details |
| FINST | Final Stratigraphic Report | | | | Details |
| FINTP | Formation Interpretation | | | | Details |
| FIO | Free In and Out | | | | Details |
| FIOC | First International Oil Company Kazakhstan | | | | Details |
| FIOST | Free In and Out Stowed and Trimmed | | | | Details |
| FIOT | Free In and Out Trimmed | | | | Details |
| FIP | Flow Induced Pulsation | | | | Details |
| FIP | Fields in production | | | | Details |
| FIRC | flow indicating ratio controller | | | | Details |
| FIS | Fluid Inclusion Stratigraphy (crush cuttings to get HC data | | | | Details |
| FIS | Fishing Run | | | | Details |
| FIS | Fluid Isolation Sub | | | | Details |
| FIS | Front Islamique du Salut | | | | Details |
| FIS | Fuzzy Inference System | | | | Details |
| fis | fissure | | | | Details |
| fish | fishing | | | | Details |
| fisl | fissile | | | | Details |
| FIST | Fully Integrated Sand (prediction) Tool | | | | Details |
| FIT | Formation Intervil Tester | | | | Details |
| FIT | Formation Integrity Test | | | | Details |
| FIT | Fast Inspection Tool (tracking program used by Oilserv) | | | | Details |
| FIT | Free In Trimmed | | | | Details |
| FIT | fairing intervention tool | | | | Details |
| FIT | fluid identification test | | | | Details |
| FIT | formation interval tester | | | | Details |
| FIV | Formation Isolation Valve | | | | Details |
| FIV | Flow Induced Vibration | | | | Details |
| FIV | formation isolation valve A downhole valve that is operated by pressure cycling or other remote method | | | | Details |
| FIW | Free in Wagon | | | | Details |
| fix | fixture | | | | Details |
| FJI | FIJI | | | | Details |
| Flip | Flippen | | | | Details |
| FLIV | FlowLine Injection Valve | | | | Details |
| FLIV | Flowline Isolation Valve | | | | Details |
| FMFI | Folding Impeller Flowmeter | | | | Details |
| FMI | Fullbore Formation Micro Imager | | | | Details |
| FMI | Formation Microimager Log | | | | Details |
| FMI | formation micro image, a common fracture detection tool | | | | Details |
| FMI | Formation Microimager | | | | Details |
| FO (IFO) | Fuel Oil | | | | Details |
| FONSI | finding of no significant impact | | | | Details |
| formation | evaluation | | | | Details |
| FPI | Final Petrophysical Interpretation | | | | Details |
| FPI | free-point indicator | | | | Details |
| FPIT | Free Point Indicator Tool | | | | Details |
| FPIT | Free Point Indicator Tool (electric line) | | | | Details |
| FPMI | Four point modified isocronal | | | | Details |
| Free Ex Ins | FREE of any EXtra INSurance (Owners) | | | | Details |
| fri | friable | | | | Details |
| Fruit | Fruitland | | | | Details |
| FSI | Flawless Start-up Initiative | | | | Details |
| FSI | Fluid Scanner Imager | | | | Details |
| FSIP | final shut in pressure | | | | Details |
| FSIP | final shutin pressure | | | | Details |
| FSIWA | Federation of Sewage and Industrial Wastes Assn. | | | | Details |
| FTPI | Fiberglass Tank & Pipe Institute | | | | Details |
| FULDI | Full Diameter Study Report | | | | Details |
| FYI | For Your Information | | | | Details |
| FYKI | For Your Kind Information | | | | Details |
| FZI | Flow Zone Indicator | | | | Details |
| GAIC | Gulf Arab Investment Company | | | | Details |
| GAIGI | Gravity Assisted Inert Gas Injection | | | | Details |
| GAIL | Gas Authority of India Ltd. | | | | Details |
| GAIL | Gail (India) Limited | | | | Details |
| GAIL | Gas Authority India | | | | Details |
| gal/min | gallons per minute | | | | Details |
| GAPI | Gamma Ray using API units | | | | Details |
| GASUNIE | NV Nederlandse Gasunie Netherlands | | | | Details |
| GATOIL | Subsidiary of NOC Libya Libya | | | | Details |
| GBI | Group Basic Index | | | | Details |
| GCI | gas cap injection | | | | Details |
| GD li | Glen Dean lime | | | | Details |
| GDI | Graphics Device Interface | | | | Details |
| GDIP | Geodip Log | | | | Details |
| GEISO | Geisum Oil Company Egypt | | | | Details |
| GEOPLIN | Slovenian Gas Company Slovenia | | | | Details |
| GFI | Ground Fault Interruption | | | | Details |
| GHAIP | Ghanaian-Italian Petroleum Co., Ltd. Ghana | | | | Details |
| GI | Gas Injector or Injection | | | | Details |
| Gi | Cumulative gas injected (material balance) | | | | Details |
| GI | GIBRALTAR | | | | Details |
| GIB | Gulf International Bank | | | | Details |
| GIB | GIBRALTAR | | | | Details |
| Gib | Gibson | | | | Details |
| GIC | Gulf Investment Corporation | | | | Details |
| GIF | Graphics Interchange Format | | | | Details |
| GIGO | Garbage In Garbage Out | | | | Details |
| GIGO | Garbage In, Garbage Out | | | | Details |
| GIH | Going In Hole | | | | Details |
| GIIC | Gulf Industrial Investment Company | | | | Details |
| GIIP | Gas Initially In Place | | | | Details |
| GIIP | Gas initial in place | | | | Details |
| gil | gilsonite, gilsonitic | | | | Details |
| gil | gilsonite | | | | Details |
| Gilc | Gilcrease | | | | Details |
| GIN | GUINEA | | | | Details |
| GIO | Gulf Investment Organization Kuwait/GCC | | | | Details |
| GIP | Group Investment Proposal (Shell term) | | | | Details |
| GIP | gas in pipe | | | | Details |
| GIPIP | Good International Petroleum Industry Practices | | | | Details |
| GIS | Geographic Information System | | | | Details |
| GIS | global information system | | | | Details |
| GISB | gas industry standards board | | | | Details |
| GISB | Gas Industries Standards Board | | | | Details |
| GISCO | Gas Investments and Service Company Ltd. | | | | Details |
| GIT | Global Implementation Team | | | | Details |
| GIV | gas injection valve | | | | Details |
| GIW | gas injection well | | | | Details |
| GLI | Generalized Linear Inversion | | | | Details |
| GoI | Government of India | | | | Details |
| GOSI | General Organization for Social Insurance | | | | Details |
| GPIC | Gulf Petrochemical Industries Company | | | | Details |
| GPIT | General Purpose Inclinometry Tool | | | | Details |
| GPIT | Inclinometry Tool Log | | | | Details |
| GPIT | Inclinometer Survey Directional | | | | Details |
| GR/D CALIPER | Gamma Ray/Dual Caliper | | | | Details |
| GRI | Gas Research Institute | | | | Details |
| GRI | Global Reporting Initiative | | | | Details |
| GSLIB | Geostatistical Software Library | | | | Details |
| GTI | Gas Technology Institute | | | | Details |
| GUI | graphical user interface | | | | Details |
| GUI | Graphic User Interface | | | | Details |
| GWSI | gas well shut in | | | | Details |
| HAI | Hydro Agri International | | | | Details |
| HAZID | Hazard Identification (meeting) | | | | Details |
| HAZIO | Hazard and Operability Analysis | | | | Details |
| HBI | Hot Briquetted Iron | | | | Details |
| HCI | Core Data Import | | | | Details |
| HCIP | Hydrocarbon in Place | | | | Details |
| Hd li | hard lime | | | | Details |
| HDI | Category Data Import | | | | Details |
| HDIL_BA | High-Definition Induction Log | | | | Details |
| HDIL_HAL | Hostile Dual Induction | | | | Details |
| HDIP | Hexagonol Diplog | | | | Details |
| HDIP | Hexdip | | | | Details |
| HDMI | High-Definition Multimedia Interface | | | | Details |
| HELIOS | Ste. Pour la Construction et l’Exploitation d’une Usine d’Helium Liquide et d’Azote Algeria | | | | Details |
| HI | Hydrogen Index | | | | Details |
| HI | Hawaii | | | | Details |
| HIA | Health Information Act | | | | Details |
| HIA | Hydrologic Investigations Atlas | | | | Details |
| HIC | Hydrogen-induced Cracking | | | | Details |
| HIC | Hydrogen Induced Cracking | | | | Details |
| Hick | Hickory | | | | Details |
| HIIP | Hydrocarbons Initially-In-Place | | | | Details |
| Hill | Hilliard | | | | Details |
| HILT | High Integrated Logging Tool | | | | Details |
| HiPo | High Potantial (HSE term wrt to high potantial incident) | | | | Details |
| HIPPS | High Integrity Pressure Protection System | | | | Details |
| HIRA | Hazard Identification and Risk Assessment | | | | Details |
| HIS | Bit HP impact (hp/in^2) | | | | Details |
| HISC | Hydrogen induced stress cracking | | | | Details |
| HISPANOIL | Hispanica de Petroleos, S.A. (see Repsol) Spain | | | | Details |
| HIT | Hydraulic Impedance Test | | | | Details |
| HIT | Hostile Array Induction Tool (aka XAIT) | | | | Details |
| HJII | Hyperjet Perforating | | | | Details |
| HJIII | Hyperjet Perforating | | | | Details |
| HMI | High Resolution Micro Imager | | | | Details |
| holiday | Hole in the protective coating of a steel pipeline in the field | | | | Details |
| horiz | horizontal | | | | Details |
| HPI | High Potential Incident | | | | Details |
| HPI | High Pressure Injection | | | | Details |
| HRI | High Resolution Induction (includes HRAI) | | | | Details |
| HTI | HAITI | | | | Details |
| HVI | high viscosity index | | | | Details |
| I- | miscellaneous investigations series | | | | Details |
| I.D | sign identification sign | | | | Details |
| i.O. | in Ordnung | | | | Details |
| I.P. | Intermediate pressure pipeline | | | | Details |
| I/C | interconnection(ing) | | | | Details |
| I/CFD | interconnecting flow diagram | | | | Details |
| I/O | input/output | | | | Details |
| I:P | Injector To Producer Ratio | | | | Details |
| IA | inner annulus | | | | Details |
| IAB | initial air block | | | | Details |
| IACMAG | International Association of Computer Methods and Geomechanics | | | | Details |
| IACO | International Civil Aviation Organization | | | | Details |
| IADC | International Association of Drilling Contractors | | | | Details |
| IADC | International Association of Drilling Contractors (formerly AAODC) | | | | Details |
| IAE | Institute of Automotive Engineers | | | | Details |
| IAEA | International Atomic Energy Agency | | | | Details |
| IAEE | International Association for Energy Economics | | | | Details |
| IAEE | International Assn. for Energy EconomicsUS | | | | Details |
| IAEO | Iranian Atomic Energy Organization | | | | Details |
| IAG | Integrated Asset Group | | | | Details |
| IAGC | International Association of GeoChemistry | | | | Details |
| IAGC | International Association of Geophysical | | | | Details |
| IAI | Integrity Assurance Index | | | | Details |
| IAM | Integrated Asset Meeting | | | | Details |
| IAM | integrated asset modeling | | | | Details |
| IAOGP | International Association of Oil and Gas Producers | | | | Details |
| IAOM | Integrated Asset Operations Module | | | | Details |
| IAP | inner annulus pressure | | | | Details |
| IAP | Institut Algerien du Petrole Algeria | | | | Details |
| IAPG | Instituto Argentino del Petroleo y del Gas Argentina | | | | 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 |
| IATA | International Air Transport Association | | | | Details |
| IATEFL | International Association of Teachers of English as Foreign Language | | | | Details |
| IAxOA | inner annulus to outer annulus | | | | Details |
| IB | impression block | | | | Details |
| IB | iron body(valve) | | | | Details |
| IBBC | iron body brass core(valve) | | | | Details |
| IBBM | iron body brass(bronze) mounted(valve) | | | | Details |
| IBC | Intermediate Bulk Container | | | | Details |
| IBCA | International Banking Credit Agency | | | | Details |
| IBES | International Bureau for Energy Studies | | | | Details |
| IBHP | initial bottom-hole pressure | | | | Details |
| IBHPF | initial bottom-hole pressure, flowing | | | | Details |
| IBHPSI | initial bottom-hole pressure, shut in | | | | Details |
| IBHSP | Initial Bottom Hole Shut-in Pressure | | | | Details |
| IBJ | Industrial Bank of Japan | | | | Details |
| IBK | Industrial Bank of Kuwait | | | | Details |
| IBM | International Business Machines | | | | Details |
| Ibn | Hayyan National Plastic Company | | | | Details |
| Ibn | Rushd Arab Industrial Fibers Company | | | | Details |
| Ibn | Sina National Methanol Company | | | | Details |
| Ibn | Zahr Saudi European Petrochemical Company | | | | Details |
| IBO | Internal Blowout | | | | Details |
| IBOP | Internal Blow Out Preventor | | | | Details |
| IBP | inflatable bridge plug | | | | Details |
| IBP | initial boiling point | | | | Details |
| IBP | Instituto Brasileiro de Petroleo Brazil | | | | Details |
| IBRD | International Bank for Reconstruction and Development | | | | Details |
| IC | Ion Chromatography | | | | Details |
| IC | Integrated Circuit | | | | Details |
| IC | ICELAND | | | | Details |
| IC | inner casing | | | | Details |
| IC | iron case | | | | Details |
| ICAL | Imaging Caliper | | | | Details |
| ICAO | International Civil Aviation Organization | | | | Details |
| ICAP/MS | inductively coupled argon plasma/mass spectrometry | | | | Details |
| ICC | International Criminal Court | | | | Details |
| ICC | Interstate Commerce Commission | | | | Details |
| ICD | Inflow Control Device | | | | Details |
| ICD | Inflow Control Devices | | | | Details |
| ICE | Integrated Charge Evaluation | | | | Details |
| ICE | InterContinental Exchange | | | | Details |
| ICEED | International Research Center for Energy and Economic Development | | | | Details |
| icfos | microfossil(iferous) | | | | Details |
| ICGP | Inside Casing Gravelpack | | | | Details |
| ICGPW | Inside Casing Gravelpack Wechsel | | | | Details |
| ICGTI | International Centre for Gas Technology Information IEA | | | | Details |
| ICI | Imperial Chemical Industries Ltd. UK | | | | Details |
| ICIANZ | Imperial Chemical Industries of Australia & New Zealand Ltd. UK | | | | Details |
| ICJ | International Court of Justice | | | | Details |
| ICMS | Inspection and Corrosion Management System | | | | Details |
| ICoTA | Intervention and Coiled Tubing Association | | | | Details |
| ICOTA | International Coiled Tubing Operators Association | | | | Details |
| ICP | Intermediate Casing Point | | | | Details |
| ICP | Iron Couple Plasma | | | | Details |
| ICP | inflatable casing packer | | | | Details |
| ICP | inside casing gravel pack | | | | Details |
| ICP | initial circulating pressure | | | | Details |
| ICPA | International Cooperative Petroleum Assn. Netherlands | | | | Details |
| ICP-OES | inductive coupled plasma optical emission spectroscopy | | | | Details |
| ICR | information collection request | | | | Details |
| ICS | Incident Command System | | | | Details |
| ICS | Customer Instrument Service | | | | Details |
| Icsg | Intermediate Casing | | | | Details |
| ICSS | Integrated Controls and Safety System | | | | Details |
| ICSU | Integrated Commissioning and Start Up | | | | Details |
| ICV | Inflow/Interval/Injection Control Valve (smart completion equipment) | | | | Details |
| ICV | Integrated Cement Volume (of Borehole)(in Cubic Metres) | | | | Details |
| ICV | Interval Control Valve | | | | Details |
| ICV | Inflow Control Valve | | | | Details |
| ICV | Inflow Control Valves | | | | Details |
| ID | Identifier | | | | Details |
| ID | Inner or Internal Diameter (of a tubular component such as a casing) | | | | Details |
| ID | Interim Directive (internal instructions) | | | | Details |
| ID | Inner Diameter | | | | Details |
| ID | INDONESIA | | | | Details |
| ID | inside diameter | | | | Details |
| ID | Idaho | | | | Details |
| IDA | International Development Association | | | | Details |
| IDB | Islamic Development Bank | | | | Details |
| IDC | Intangible Drilling Costs | | | | Details |
| IDCS | Integrated Distribution Control System. | | | | Details |
| IDD | Industrial Development Division | | | | Details |
| IDE | Integrated Device Electronics | | | | Details |
| IDEL | IDEL Log | | | | Details |
| IDENT | identify(ier)(ication) | | | | Details |
| Idio | Idiomorpha | | | | Details |
| IDLH | Immediately Dangerous to Life & Health | | | | Details |
| IDm | minimum ID | | | | Details |
| IDN | INDONESIA | | | | Details |
| IDn | nominal ID | | | | Details |
| IDP | Individual Developent Plan | | | | Details |
| IDP | Initial Development Plan | | | | Details |
| IDRO | Industrial Development and Renovation Organization | | | | Details |
| IDS | Independent Data Services | | | | Details |
| IDS | Integrated Directional Sonde | | | | Details |
| IDSC | Information and Decision Support Center | | | | Details |
| ie | id est | that is to say; in other words | | | Details |
| IE | IRELAND | | | | Details |
| IEA | International Energy Agency | | | | Details |
| IEA | International Energy Agency (—) | | | | Details |
| IEB | Induction Electro BHC Log | | | | Details |
| IED | Improvised Explosive Device (homemade bomb deployed in ways & roads) | | | | Details |
| IEEE | Institute of Electrical and Electronics Engineers | | | | Details |
| IEEJ | Institute of Energy Economics, Japan Japan | | | | Details |
| IEF | International Energy Forum (—) | | | | Details |
| IEL | Induction Electrical Log | | | | Details |
| IEL | Induction Electrolog | | | | Details |
| IEL | Induction Electric Log | | | | Details |
| IEL | Induction Log | | | | Details |
| IEL | Induction Electric | | | | Details |
| I-EL | Induction-Electric Log | | | | Details |
| IEL/GR | Induction Electrolog Gamma Ray | | | | Details |
| IEL/GR | Induction Log-Gamma Ray | | | | Details |
| IEL/GR/NEU | Induction Electrolog Gamma | | | | Details |
| IEL/NEU | Induction Electrolog Neutron | | | | Details |
| IEL/NEU | Induction Log-Neutron | | | | Details |
| IEL-G | Induction Electric Gamma Ray | | | | Details |
| IEL-GR | Induction Electrolog-Gamma Ray | | | | Details |
| IEL-GRN | Induction Electrolog-Gamma Ray Neutron | | | | Details |
| IEL-N | Induction Electric Neutron | | | | Details |
| IEL-N | Induction Electrolog-Neutron | | | | Details |
| IEM | invert emulsion mud | | | | Details |
| IEOC | International Egyptian Oil Company | | | | Details |
| IEOC | International Egyptian Oil Co., Inc. Egypt | | | | Details |
| IES | Italiana Energia Servizi | | | | Details |
| IES | Induction/Electrical Logging | | | | Details |
| IES | Induction | | | | Details |
| IES | Induction-Electric or Induction-Electro | | | | Details |
| IES | induction electrical survey | | | | Details |
| I-ES | Induction-Electron Logging | | | | Details |
| IF | Internal Flush tool joint | | | | Details |
| IF | Internal Flush Verbinder | | | | Details |
| IF | internal flush | | | | Details |
| IFA | In-situ Fluid Analyzer | | | | Details |
| IFC | International Finance Corporation | | | | Details |
| IFC | International Finance Corporation World Bank | | | | Details |
| IFE | Institute of Energy Technology Norway | | | | Details |
| i-Field | Intelligent Field | | | | Details |
| IFL | initial fluid level | | | | Details |
| IFO | In Field Opportunity | | | | Details |
| IFO | Injection Fall-Off test | | | | Details |
| IFO | Intermediate Fuel Oil | | | | Details |
| IFO | Incident Free Operation (days) | | | | Details |
| IFP | Institut Français du Pétrole | | | | Details |
| IFP | Institute Français du Pétrole | | | | Details |
| IFP | integrated field planning | | | | Details |
| IFP | initial flow pressure | | | | Details |
| IFP | initial flowing pressure | | | | Details |
| IFP | Institut Francais du Petrole France | | | | Details |
| IFR | Integrated Functional Review | | | | Details |
| IFR | internal floating roofs | | | | Details |
| IFT | InterFacial Tension | | | | Details |
| IFTA | International Fuel Tax Agreement | | | | Details |
| IG | Injection Gas | | | | Details |
| IGAT | Iranian Gas Trunkline | | | | Details |
| IGD | Injection Gas deepening | | | | Details |
| IGIP | Intial Gas In Place | | | | Details |
| IGLR | injection gas lift ratio | | | | Details |
| Ign | igneous | | | | Details |
| IGN | ignition | | | | Details |
| iGOC | Initail Gas Oil Contact | | | | Details |
| IGOR | injection gas-oil ratio | | | | Details |
| IGP | Internal Gravel Pack | | | | Details |
| IGP | inside casing gravel pack where no gravel is placed into the perforations | | | | Details |
| IGR | Independent Gate Reveiw | | | | Details |
| IGR | Injection Gas redrill | | | | Details |
| I-GR | Induction-Gamma Ray Logging | | | | Details |
| IGSAS | Istanbul Fertiliser Industry Corp. Turkey | | | | Details |
| IGT | Institute of Gas Technology | | | | Details |
| IGU | International Gas Union France | | | | Details |
| IGUA | Industrial Gas Users Association | | | | Details |
| IGV/IBV | inlet gate valve/inlet ball valve | | | | Details |
| IGX | Injection Gas workover | | | | Details |
| IH | Gamma Ray Log | | | | Details |
| IHCIP | Initial HydroCarbon In Place | | | | Details |
| IHLS | Independent High Level Switch | | | | Details |
| IHP | Initial Hole Pressure (in an MDT job mud before pressure) | | | | Details |
| IHP | initial hydrostatic pressure | | | | Details |
| IHP | indicated horsepower | | | | Details |
| IHPHR | indicated horsepower hour | | | | Details |
| IHRDC | International Human Resources Development Company | | | | Details |
| IHS | IHS Energy (consulting company, parent of CERA) | | | | Details |
| IHV | Integrated Hole Volume (of Borehole) (in Cubic Metres) | | | | Details |
| IHV | In Höhe von (to the amount of…) | | | | Details |
| II | Injectivity Index | | | | Details |
| II | injection index | | | | Details |
| IIA | Integrated Impact Assessment | | | | Details |
| IIES | International Institute for Energy Studies | | | | Details |
| IIL | Dual Induction - Electric | | | | Details |
| IIRC | If I recall correctly | | | | Details |
| IISS | International Institute for Strategic Studies | | | | Details |
| IJ | integral joint | | | | Details |
| IJGC | Inter-Jordan Gas Company | | | | Details |
| IJL | Injection Log | | | | Details |
| IK | Indicator Kriging | | | | Details |
| IL | Induction Log | | | | Details |
| IL | ICELAND | | | | Details |
| IL | ISRAEL | | | | Details |
| IL | Illinois | | | | Details |
| IL | Induction | | | | Details |
| ILC | Independent Learning Center (PI) | | | | Details |
| ILD | Deep Indection Log | | | | Details |
| ILI | InLine Inspection (Intelligent Pigging) | | | | Details |
| ILL | Induction - Lateral | | | | Details |
| ILL | Induction-Lateral | | | | Details |
| I-LL | Induction-Laterolog | | | | Details |
| ILM | Medium Indection Log | | | | Details |
| ILMA | Independent Lubricant Manufacturers Association | | | | Details |
| ILO | International Labour Organization | | | | Details |
| ILOGS | Image Logs | | | | Details |
| ILSA | Iran-Libya Sanctions Act | | | | Details |
| ILTA | Independent Liquid Terminals Association | | | | Details |
| ILUM | illuminator(s) | | | | Details |
| IM | Internet Messenger (AOL, MS, etc) | | | | Details |
| IM | MAN, ISLE OF | | | | Details |
| IM | Investment Multiple | | | | Details |
| IMA | Internal Multiple Attenuation | | | | Details |
| IMAG | Image Analysis Report | | | | Details |
| IMC | Interface Management Center | | | | Details |
| IMCA | International Marine Contractors Association | | | | Details |
| imdb | imbedded | | | | Details |
| IMDG | International Maritime Dangerous Code | | | | Details |
| IMF | International Monetary Fund | | | | Details |
| IMF | intermediate manifold facilities | | | | Details |
| IMF | intermediate manifolds | | | | Details |
| IMHO | In my humble opinion | | | | Details |
| IMIQ | Instituto Mexicano de Ingenieros Químicos AC Mexico | | | | Details |
| immed | immediate (lee) | | | | Details |
| immed | immediate(ly) | | | | Details |
| IMN | MAN, ISLE OF | | | | Details |
| IMO | International Maritime Organization | | | | Details |
| IMO | In my opinion | | | | Details |
| IMO | International Maritime Organization(—) | | | | Details |
| Imp | Imperial | | | | Details |
| IMP | impounding | | | | Details |
| Imp | gal Imperial gallon | | | | Details |
| IMPA | IMPulse Array Compensated Resistivity | | | | Details |
| imperv | impervious | | | | Details |
| IMPES | Implicit to Pressure Explicit to Saturation | | | | Details |
| IMS | Integrated Management System | | | | Details |
| IMS | Integrity Management System | | | | Details |
| IMT | Incident Management Team | | | | Details |
| IMV | Injection Master Valve | | | | Details |
| IMW | initial mud weight | | | | Details |
| In | Inch | | | | Details |
| IN | INDIA | | | | Details |
| IN | Indiana | | | | Details |
| in | inch, inches | | | | Details |
| in. | inch(es) | | | | Details |
| in. | Hg inches mercury | | | | Details |
| in./sec | inches per second | | | | Details |
| in.-lb | inch-pound | | | | Details |
| INA | Industrija Nafte Croatia | | | | Details |
| Inact | S | | | | Details |
| Inbded | imbedded | | | | Details |
| Inc | Inclination | | | | Details |
| INC | Iraqi National Congress | | | | Details |
| inc | Inconel Alloys (see comment) | | | | Details |
| INC | Increase | | | | Details |
| inc | increment | | | | Details |
| Inc. | incorporated | | | | Details |
| incd | incandescent | | | | Details |
| INCIN | incinerator, incineration | | | | Details |
| incl | inclusions | | | | Details |
| INCL | Inclination | | | | Details |
| incl | include(ed)(ing) | | | | Details |
| INCLR | intercooler | | | | Details |
| incls | inclusions | | | | Details |
| INCM | income(er)(ing) | | | | Details |
| INCR | Incline Report | | | | Details |
| incr | increase (d) (!gg) | | | | Details |
| incr | increase(ed)(ing) | | | | Details |
| INCRE | Incline Report | | | | Details |
| IND | INDIA | | | | Details |
| ind | induction | | | | Details |
| INDEIN | Ingenieria y Desarrolio Industrial S.A. Spain | | | | Details |
| Ind-G | Induction Gamma Ray | | | | Details |
| Ind-G | Induction Gamma | | | | Details |
| indic | indicate(s)(tion) | | | | Details |
| indiv | individual | | | | Details |
| indr | indurated | | | | Details |
| INDRS | IND RES Sonic Log | | | | Details |
| indst | indistinct | | | | Details |
| INDT | INDT Log | | | | Details |
| INDWE | Individual Well Record Report | | | | Details |
| Inf. | L inflammable liquid | | | | Details |
| Inf. | S inflammable solid | | | | Details |
| info | information | | | | Details |
| INGAA | Interstate Natural Gas Association of America | | | | Details |
| INGAA | Independent Natural Gas Association of America | | | | Details |
| ingr | intergranular | | | | Details |
| INH | Instituto Nacional de Hidrocarburos Spain | | | | Details |
| INH2O | Inch of Water | | | | Details |
| INHG | Inch of Mercurry | | | | Details |
| inhib | inhibitor | | | | Details |
| INI | Instituto Nacional de Industria Spain | | | | Details |
| init | initial | | | | Details |
| inj | injection | | | | Details |
| Inj | injection, injected | | | | Details |
| Inj | Pr injection pressure | | | | Details |
| INJEC | Injection Falloff Log | | | | Details |
| Inl | inland | | | | Details |
| Inl | inlet | | | | Details |
| Inlam | interlaminated | | | | Details |
| INOC | Iraq National Oil Company | | | | Details |
| Inoc | Inoceramus | | | | Details |
| INOC | Iraq National Oil Company Iraq | | | | Details |
| INPC | Irish National Petroleum Corp. Ltd. Ireland | | | | Details |
| INPE | installing(ed) pumping equipment | | | | Details |
| Inpex | Indonesia Petroleum Ltd. | | | | Details |
| INPEX | Indonesian Petroleum Ltd. Japan | | | | Details |
| INPP | Institut Nationale de Plongee Professionnelle France | | | | Details |
| inps | inspect(ed)(ing)(tion) | | | | Details |
| INQ | inquire, inquiry | | | | Details |
| INR | Indian Rupee | | | | Details |
| ins | insulate, insulation | | | | Details |
| ins | insurance | | | | Details |
| insole | insoluble | | | | Details |
| inst | instantaneous | | | | Details |
| inst | institute | | | | Details |
| Inst Ser | Special Instrument Service Sp | | | | Details |
| inst(d)(g)(l) | install(ed)(ing)(tion) | | | | Details |
| instr | instrument, instrumentation | | | | Details |
| insuff | insufficient | | | | Details |
| insul | insulate | | | | Details |
| INSUR | Inrun Survey Report | | | | Details |
| int | interval | | | | Details |
| INT | integral | | | | Details |
| int | interest | | | | Details |
| int | interior | | | | Details |
| int | internal | | | | Details |
| int | intersection | | | | Details |
| intclr | intercooler | | | | Details |
| INTCON | interconnection | | | | 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 |
| INTL | internal | | | | Details |
| intl | interstitial | | | | Details |
| intr | intrusion | | | | Details |
| ints | intersect | | | | Details |
| intv | interval | | | | Details |
| INV | Investigation | | | | Details |
| inv | invert(ed) | | | | Details |
| inv | invoice | | | | Details |
| INVES | Investigative Program Report | | | | Details |
| Investcorp | Arabian Investment Banking Corporation | | | | Details |
| invrtb | invertebrate | | | | Details |
| iO | in Ordnung | | | | Details |
| IO | BRITISH INDIAN OCEAN TERRITORY | | | | Details |
| IO | initial open | | | | Details |
| IOC | International Oil Company | | | | Details |
| IOC | Indian Oil Corporation, Ltd. | | | | Details |
| IOC | Indian Oil Corporation | | | | Details |
| IOC | Indian Oil Company India | | | | Details |
| IOCA | Independent Oil Compounders Association | | | | Details |
| IOCC | Interstate Oil Compact Commission (became IOGCC in 1991) | | | | Details |
| IOCC | Interstate Oil Compact Commission | | | | Details |
| IOEC | Iranian Offshore Engineering Construction Company | | | | Details |
| IOEM | Invert Oil Emulsion Mud | | | | Details |
| IOGA | Illinois Oil & Gas Association | | | | Details |
| IOGANY | Independent Oil & Gas Association of New York | | | | Details |
| IOGAP | Independent Oil & Gas Association of Pennsylvania | | | | Details |
| IOGAWY | Independent Oil & Gas Association of West Virginia | | | | Details |
| IOGCC | Interstate Oil and Gas Compact Commission | | | | Details |
| IOGCC | Interstate Oil & Gas Compact Commission | | | | Details |
| IOGPT | Institute of Oil and Gas Petroleum Technology | | | | Details |
| IOIP | Initial Oil In Place | | | | Details |
| IOL | International Octane Ltd. | | | | Details |
| I-O-M | installation operation & maintenance | | | | Details |
| IOOA | Irish Offshore Operators’ Assn. Ireland | | | | Details |
| IOOC | Iranian Offshore Oil Company | | | | Details |
| IOP | Integrated Operations Planning | | | | Details |
| IOP | Iranian Oil Participants Limited | | | | Details |
| IOPA | Independent Oil Producers Agency | | | | Details |
| IOPC | Intl. Oil Pollution Compensation (—) | | | | Details |
| IOPPC | International Oil Pollution Prevention Certificate | | | | Details |
| IOR | Improved Oil Recovery | | | | Details |
| IOSA | International Oil Scouts Association | | | | Details |
| IOT | BRITISH INDIAN OCEAN TERRITORY | | | | Details |
| IP | Initial Production | | | | Details |
| IP | Intermediate Pressure | | | | Details |
| IP | Intake Pressure (of ESP pump) | | | | Details |
| IP | Injured Person | | | | Details |
| IP | Injector to Producer Ratio | | | | Details |
| IP | Internet Protocol | | | | Details |
| IP | CLIPPERTON ISLAND | | | | Details |
| IP | initial potential | | | | Details |
| IP | initial pressure | | | | Details |
| IP | Institute of Petroleum | | | | Details |
| IP | The Institute of Petroleum UK | | | | Details |
| IP | Italiana Petroli S.p.A. Italy | | | | Details |
| IPA | Independent Project Analysis Company | | | | Details |
| IPA | isopropyl alcohol | | | | Details |
| IPA | initial participating area | | | | Details |
| IPA | Indonesian Petroleum Assn. Indonesia | | | | Details |
| IPAA | Independent Petroleum Association of America | | | | Details |
| IPAC | Independent Petroleum Association of Canada | | | | Details |
| IPC | Intake Pressure Curve (J curve) | | | | Details |
| IPC | Installed Production Capacity | | | | Details |
| IPC | International Petroleum Corporation | | | | Details |
| IPC | Iraq Petroleum Company | | | | Details |
| IPCA | International Petroleum Credit Association | | | | Details |
| IPE | International Petroleum Exchange | | | | Details |
| IPE | install(ing) pumping equipment | | | | Details |
| IPE | International Petroleum Exposition | | | | Details |
| IPE | The International Petroleum Exchange of London Ltd. UK | | | | Details |
| IPF | initial potential flow | | | | Details |
| IPF | initial production flowed(ing) | | | | Details |
| IPG | Independent Petroleum Group S.A.K. | | | | Details |
| IPG | initial production gas lift | | | | Details |
| IPI | initial production on intermitter | | | | Details |
| IPIC | International Petroleum Investment Company | | | | Details |
| IPIC | International Petroleum Investment Co. UAE | | | | Details |
| IPIECA | International Petroleum Industry Environmental Conservation Association | | | | Details |
| IPIECA | International Petroleum Industry Environmental Conservation Assn.UK | | | | Details |
| IPIMS | Intelligent Pigging and Inspection Management System | | | | Details |
| IPIMS | International Petroleum Industry Multimedia System (IHRDC) | | | | Details |
| IPIMS | International Petroleum Industry Multimedia System | | | | Details |
| IPIS | Institute for Political and International Studies | | | | Details |
| IPL | Integrated Porosity Lithology | | | | Details |
| IPL | integrated porosity logging | | | | Details |
| IPL | initial potential artificial Lift | | | | Details |
| IPL | initial production plunger lift | | | | Details |
| IPLS | IPLS Log | | | | Details |
| IPM | Injection Pressure Model | | | | Details |
| IPM | Integrated Production Modelling | | | | Details |
| IPMS | Integrated Performance Monitoring System | | | | Details |
| IPO | Internal Pressure Operated | | | | Details |
| IPO | Initial Public Offering | | | | Details |
| IPOD | Initial Plan of Development | | | | Details |
| IPP | Integrated Production Plan | | | | Details |
| IPP | initial potential pump | | | | Details |
| IPP | initial production pumping | | | | Details |
| IPP/L | Interprovincial Pipe Line Co. | | | | 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 |
| IPS | Iron Pipe Size | | | | Details |
| IPS | Intelligent Pigging Survey | | | | Details |
| IPS | Initial Potential Swab | | | | Details |
| IPS | Initial Production Swabbing | | | | Details |
| IPSI | International Petroleum Sale Indonesia | | | | Details |
| IPT | Integrated Project Team | | | | Details |
| IPT | iron pipe thread | | | | Details |
| IPTC | International Petroleum Technology Conference | | | | Details |
| IPTT | interval pressure transient test | | | | Details |
| IPv6 | IP version 6 | | | | Details |
| IQ | IRAQ | | | | 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 |
| IS | Isolation Scanner Tool (Cement & Corrosion) | | | | Details |
| IS | ISRAEL | | | | Details |
| IS | ICELAND | | | | Details |
| IS | inside screw(valve) | | | | Details |
| IS | Inclinometer Survey Directional | | | | Details |
| ISA | International System Alignment | | | | Details |
| ISA | International Standard Atmosphere (see comment) | | | | Details |
| ISA | Instruction Set Architecture | | | | Details |
| ISA | Instrument Society of America | | | | Details |
| ISBN | International Standard Book Number | | | | Details |
| ISC | Integrated Service Contract | | | | Details |
| ISDN | Integrated Services Digital Network | | | | Details |
| ISEM | Institute of Earth and Man | | | | Details |
| ISF | ISF Sonic Log | | | | Details |
| ISF | Induction (Spherically Focused) | | | | Details |
| ISF | Induction Spherically Focused | | | | Details |
| ISF | Induction Spherically Focused (Induction Electric & Sonic) | | | | Details |
| ISF | Induction-Spherically Focused Log | | | | Details |
| ISFBG | ISF BHC GR Log | | | | Details |
| ISFCD | ISF Conductivity Log | | | | Details |
| ISFGR | ISF GR Casing Collar Locator Log | | | | Details |
| ISFL | ISF-LSS Log | | | | Details |
| ISFL ISF | SS Log | | | | Details |
| ISFLISF | LSS Log | | | | Details |
| ISFP | ISF Sonic True Vertical Depth Playback Log | | | | Details |
| ISFPB | ISF True Vertical Depth Playback Log | | | | Details |
| ISFSL | ISF SLS MSFL Log | | | | Details |
| ISH | Industry Shareholder | | | | Details |
| ISIP | Initial Shut In Pressure | | | | Details |
| ISIP | initial shut-in pressure Used to isolate the formation fracturing or injection effect from the friction effects | | | | Details |
| ISIP | initial shutin pressure(DST) | | | | Details |
| ISIP | instantaneous shutin pressure (frac job or XLOT) | | | | Details |
| ISITP | initial shutin tubing pressure | | | | Details |
| ISL | ICELAND | | | | Details |
| ISM(C) | International Safety Management Code | | | | Details |
| ISND | Idd El-Shargi North Dome | | | | Details |
| ISNEFT | Israel National Oil Co. Ltd. Israel | | | | Details |
| ISO | international Standards Organization | | | | Details |
| ISO | International Organization for Standardization | | | | Details |
| ISO | International Standardisation Organisation | | | | Details |
| ISO | International Organization for Standardization, a network of national standards institutes of 146 countries, based in Geneva, Switzerland | | | | Details |
| ISO | independent system operators | | | | Details |
| Iso | C5,C6 isopentane (aka 2-methylbutane), isohexane (aka 2-methylpentane) | | | | Details |
| ISO | isometric | | | | Details |
| ISO | International Organization for Standardization (—) | | | | Details |
| ISO/CKR | isocracker | | | | Details |
| ISOL | Isotron | | | | Details |
| ISOL | isolate(tor) | | | | Details |
| isom | isometric | | | | Details |
| ISONIC | LWD Sonic | | | | Details |
| isoth | isothermal | | | | Details |
| ISP | Internet Service Provider | | | | Details |
| ISP | intermediate strength proppant | | | | Details |
| ISR | ISRAEL | | | | Details |
| ISRS | international safety rating system | | | | Details |
| ISS | issue | | | | Details |
| ISSA | International Slurry Surfacing Association | | | | Details |
| ISSB | Isolation Sub - Spontaneous Potential | | | | Details |
| ISSM | In-Situ Saturation Monitoring | | | | Details |
| ISSN | International Standard Serial Number | | | | Details |
| ISSSV | injection subsurface safety valve | | | | Details |
| IST | Information Systems and Technology | | | | Details |
| IST | (work) Instructions | | | | Details |
| ISTD | Information Systems and Technology Division | | | | Details |
| I-Sw | Resistivity-saturation | | | | Details |
| IT | Information Technology | | | | Details |
| IT | ITALY | | | | Details |
| IT | interruptible transport | | | | Details |
| ITA | ITALY | | | | Details |
| ITB | Invitation to Bid | | | | Details |
| ITC | Internal x-mas Tree Cap | | | | Details |
| ITC | Industrial Training Center | | | | Details |
| ITC | investment tax credit | | | | Details |
| ITC | Interagency Testing Committee | | | | Details |
| ITD | intention to drill | | | | Details |
| ITHP | Injection Tbg Head Pressure | | | | Details |
| ITP | Initial Tract Participation (Unitization) | | | | Details |
| ITR | Integrated Technical Review (Subsurface, replaced IMR in 2009) (Surface has Assumptions Review) | | | | Details |
| ITR | Inspection Test Record | | | | Details |
| ITS | Influx To Surface | | | | Details |
| ITS | Inflow to Surface | | | | Details |
| ITT | Invitation to Tender | | | | Details |
| ITT | Instruction To Tender | | | | Details |
| IU | If Used | | | | Details |
| IU | see Internal Upset | | | | Details |
| IUC | Inter University Center (PI) | | | | Details |
| IUD | instantaneous underbalance device | | | | Details |
| IUE | internal upset ends | | | | Details |
| IUG | Instrument Utility Gas | | | | Details |
| IUHTAUTC | If Used, Half Time ActUally To Count | | | | Details |
| IUP | Insitu Upgrading Process | | | | Details |
| IUPAC | International Union of Pure and Applied Chemistry | | | | Details |
| IUPIW | International Union of Petroleum & Industrial Workers | | | | Details |
| IV | COTE D'IVOIRE | | | | Details |
| Ives | Iverson | | | | Details |
| IVICV | infinitely variable internal control valve | | | | Details |
| IVMS | In Vehicle Monitoring System (GPS system for monitoring the cars) | | | | Details |
| IVP | initial vapor pressure | | | | Details |
| IVSS | Insert Vibration Severity Sensor | | | | Details |
| IW | Injection Water | | | | Details |
| IW | injection well | | | | Details |
| IWC | Instantaneous Waveform Characteristics (fracture identification methodology??) | | | | Details |
| IWCF | International Well Control Federation | | | | Details |
| IWCF | International Well Control Forum | | | | Details |
| IWD | Injection Water deepening | | | | Details |
| IWL | Institute Warranty Limits | | | | Details |
| iWOC | Initial Water Oil Contact | | | | Details |
| IWOCS | Installation / Workover Control System | | | | Details |
| IWR | Injection Water redrill | | | | Details |
| IWRC | Independent wire rope center | | | | Details |
| IWS | Intelligent Well System | | | | Details |
| IWV | Injection Wing Master Valve | | | | Details |
| IWX | Injection Water workover | | | | Details |
| IZ | IRAQ | | | | Details |
| JEXIM | Japan Export Import Bank | | | | Details |
| JIB | Joint Interest Billing (Partner billing system) | | | | Details |
| JIB | joint interesting billing | | | | Details |
| JINO | joint interest nonoperated(property) | | | | Details |
| JIP | Joint Industry Project | | | | Details |
| JIS | Japanese Industrial Standards Japan | | | | Details |
| JODI | Joint oil data initiative | | | | Details |
| JODICO | Jordan Dead Sea Industries Company | | | | Details |
| Jordinvest | Jordan Investment Trust | | | | Details |
| juris | jurisdiction | | | | Details |
| Kai | Kaibib | | | | Details |
| KFTCIC | Kuwait Foreign Trading, Contracting and Investment Company | | | | Details |
| KHI | Kinetic Hydrate Inhibitor | | | | Details |
| KI | Klappen (Packer) | | | | Details |
| KI | KIRIBATI | | | | Details |
| KIA | Kuwait Investment Authority | | | | Details |
| Kia | Kiamichi | | | | Details |
| Kib | Kibbey | | | | Details |
| KIC | Kuwait Investment Company | | | | Details |
| Kilo | kilogram, 1000 grams | | | | Details |
| Kin | li Kincaid Lime | | | | Details |
| kin | kinematic | | | | Details |
| KIO | Kuwait Investment Office | | | | Details |
| KIOGA | Kansas Independent Oil and Gas Association | | | | Details |
| KIP | Klappen-Packer | | | | Details |
| kip | one thousand pounds | | | | Details |
| KIPCE | Kuwait International Petroleum Conference and Exhibition | | | | Details |
| KIPCO | Kuwait Investments Projects Company | | | | Details |
| kip-ft | one thousand foot-pounds | | | | Details |
| KIR | KIRIBATI | | | | Details |
| Kirt | Kirtland | | | | Details |
| KIT | kitchen | | | | Details |
| K-Line | Kawasaki Kishen Kaisha | | | | Details |
| KOIV | Knock Out Isolation Valve | | | | Details |
| KPI | Key Performance Indicator | | | | Details |
| KPI | Key Process Indicators | | | | Details |
| KREIC | Kuwait Real Estate Investment Consortium | | | | Details |
| Kri | Krider | | | | Details |
| KSI | kilo pounds per square inch | | | | Details |
| LAIC | Libyan Arab Investment Company | | | | Details |
| lb-in. | pound-inch | | | | Details |
| LDHI | Low dose hydrate inhibitors | | | | Details |
| LI | LIBERIA | | | | Details |
| LI | LIECHTENSTEIN | | | | Details |
| LI | level indicator | | | | Details |
| LI | Limestone Device | | | | Details |
| LIB | Lead Impression Block (see comment) | | | | Details |
| LIB | lead impression block | | | | Details |
| LIB | light iron barrel | | | | Details |
| LIC | level indicator controller | | | | Details |
| lic | license | | | | Details |
| LIE | LIECHTENSTEIN | | | | Details |
| Lieb | Liebuscella | | | | Details |
| LIF | Land of Israel Front | | | | Details |
| lig | lignite , lignite | | | | Details |
| lig | lignite, lignitic | | | | Details |
| LIGB | light iron grease barrel | | | | Details |
| LIH | Lost In Hole | | | | Details |
| LIH | Left in Hole | | | | Details |
| LII | Liquid Isotope Injector | | | | Details |
| LIL | Log-Inject-Log | | | | Details |
| lim | limit, limonite | | | | Details |
| LIMS | Laboratory Information Management System | | | | Details |
| lin | linear | | | | Details |
| lin | liner | | | | Details |
| lin | ft linear foot | | | | Details |
| LINC | Latched Inductive Coupling (SLB data Acquisition) | | | | Details |
| LINCO | Liner and Completion Progress Report | | | | Details |
| LINUX | Linus torvalds UniX | | | | Details |
| LIOG | Lithography Log | | | | Details |
| LIOGA | Louisiana Independent Oil & Gas Association | | | | Details |
| LIP | local injections plants | | | | Details |
| liq | liquid | | | | Details |
| liqftn | liquefaction | | | | Details |
| LIRA | Logistic and Infrastructure Resource Assessment | | | | Details |
| LIT | Lead Impression Tool | | | | Details |
| LITDE | Litho Density Quicklook Log | | | | Details |
| LITH | Li tho logy | | | | Details |
| LITH | Lithology | | | | Details |
| litho | lithologic | | | | Details |
| litho | lithographic | | | | Details |
| LITHR | Lithological Description Report | | | | Details |
| LITRE | Lithostratigraphy Report | | | | Details |
| LITST | Lithostratigraphic Log | | | | Details |
| LLI | Long Lead Items (such as casing, Xmas tree, …) | | | | Details |
| LNFT-IA | liquid, no flow test, inside annulus | | | | Details |
| LOI | Letter Of Intend | | | | Details |
| LOI | Letter Of Indemnity. | | | | Details |
| LSCI | LINC Surface Computer Interface (SLB data Acquisition) | | | | Details |
| LTI | Lost Time Incident (see comment) | | | | Details |
| LTI | Lost Time Injury | | | | Details |
| LTI(FR) | Lost Time Incident (Frequency Rate) | | | | Details |
| LTIF | Lost Time Incident Frequency | | | | Details |
| LTIF | Lost Time Injury Frequency | | | | Details |
| LTIFR | lost time injury frequency rate | | | | Details |
| LTIS | Lost Time Injury Severity | | | | Details |
| LTSI | long term shut-in | | | | Details |
| LUBRIESUR | Lubricantes del Sur S.A. Spain | | | | Details |
| LUBRINER | Lubricantes Nervion S.A. Spain | | | | Details |
| LUBRITURIA | Lubricantes Turia S.A. Spain | | | | Details |
| LUMI | Luminescence Log | | | | Details |
| LVI | low viscosity index | | | | Details |
| LWDI | Lost Work Day Incident | | | | Details |
| Ma’adin | Saudi Arabian Mining Company | | | | Details |
| MAI | Compact Array Induction | | | | Details |
| maint | maintenance | | | | Details |
| MAIR | Maximum Allowable (water) Injection Rate | | | | Details |
| Manit | Manitoban | | | | Details |
| MARICONSULT | Technical support to Transmed Algeria | | | | Details |
| MAXIMO | Computer Based Materials Management System (IBM) | | | | Details |
| MaxIP | the largest production volume for a month, divided by the number of days in that month | | | | Details |
| MCI | Materials, Corrosion, and Integrity | | | | Details |
| McMill | McMillan | | | | Details |
| MEIB | Middle East Investment Bank | | | | Details |
| merid | meridian | | | | Details |
| MFI | Monetary Financial Institutions | | | | Details |
| MGI | miscible gas injection | | | | Details |
| MGIL | Mud Gas Isotope Analysis | | | | Details |
| MHI | Mitsubishi Heavy Industries | | | | Details |
| mi | mile | | | | Details |
| MI | MALAWI | | | | Details |
| MI | MIDWAY ISLANDS | | | | Details |
| MI | move in (as in equipment) | | | | Details |
| MI | moving (moved) in (upper case) | | | | Details |
| mi | mile, miles (lower case) | | | | Details |
| MI | malleable iron | | | | Details |
| MI | mile(s) | | | | Details |
| MI | mineral interest | | | | Details |
| MI | moving in(equipment) | | | | Details |
| MIB | Management Information Base | | | | Details |
| MIBank | Misr International Bank | | | | Details |
| MIC | Microbiologically Influenced Corrosion | | | | Details |
| MIC | Microbial Stress Cracking (see comment) | | | | Details |
| Mica | a silica mineral, often present as ultra thin flakes and sometimes mobile | | | | Details |
| mica | micaceous | | | | Details |
| mica | mica, micaceous | | | | Details |
| MICL | Micro | | | | Details |
| MICL | Micro Log | | | | Details |
| MICL | Microlog | | | | Details |
| MICLOG | Microlog | | | | Details |
| MICP | Mercury Injection Capillary Pressure | | | | Details |
| MICR | moving in completion rig | | | | Details |
| microsec | microsecond | | | | Details |
| micro-xin | microcrystalline | | | | Details |
| MICS | Microsurvey | | | | Details |
| MICT | moved (ing) in cable tools. completion | | | | Details |
| MICT | moving in cable tools | | | | Details |
| MICU | moving in completion unit | | | | Details |
| mid | middle | | | | Details |
| Mid | Midway | | | | Details |
| MIDDU | moving(moved) in double drum unit | | | | Details |
| Midor | Middle East Oil Refinery | | | | Details |
| MIDTAP | Middle East Oil Tankage & Pipelines Egypt | | | | Details |
| MIE | moving in equipment | | | | Details |
| MIFR | Mini Frac Log | | | | Details |
| MIG | Mediterranean Investors Group | | | | Details |
| MIGA | Multilateral Investment Guarantee Agency | | | | Details |
| MIGOP | Misr Gulf Oil Processing Company Egypt | | | | Details |
| MIK | methylisobutylketone | | | | Details |
| MIL | Milling Run | | | | Details |
| mil | military | | | | Details |
| Mill | a cutting tool used to grind up metal, dress off a fish, or open up a window for a kick-off | | | | Details |
| mill | milliotitic | | | | Details |
| millg | milling | | | | Details |
| Milli | prefix meaning one thousandth | | | | Details |
| MIM | Management Information Meeting | | | | Details |
| MIM | moving in materials | | | | Details |
| min | minute (s) or minimum | | | | Details |
| MIN | Mineral | | | | Details |
| min | minerals | | | | Details |
| min | minimum | | | | Details |
| min | minute(s) | | | | Details |
| min P | minimum pressure | | | | Details |
| m-in. | microinch | | | | Details |
| MIN/MAX | Minimum/Maximum (cargo quantity) | | | | Details |
| MINF | Minifocus | | | | Details |
| MINL | Minilog | | | | Details |
| MINL | Mini | | | | Details |
| Minl | Minnelusa | | | | Details |
| Mio | Miocene | | | | Details |
| MIOP | Mandatory Oil Import Program | | | | Details |
| MIP | Monthly Income Plan | | | | Details |
| MIPAL | Micropalaeo Log | | | | Details |
| MIPU | moving in pulling unit | | | | Details |
| MIQ | MIDWAY ISLANDS | | | | 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 |
| MIS | Module Initiation Sheet (M-Process) | | | | Details |
| MISC | Malaysia International Shipping Company | | | | Details |
| misc | miscellaneous | | | | Details |
| Mise | Misener | | | | Details |
| MISR | moving in service rig | | | | Details |
| Miss | Mississippian | | | | Details |
| Miss | Cany Mission Canyon | | | | Details |
| MIST | Minimum Industry Safety Training | | | | Details |
| MIST | moving in standard tools | | | | Details |
| MIT | see Mechanical Integrity Test | | | | Details |
| MIT | Massachusetts Institute of Technology | | | | Details |
| MIT | moving in tools | | | | Details |
| MITI | Ministry of International Trade and Industry Japan | | | | Details |
| MIT-IA | mechanical integrity test – inside annulus | | | | Details |
| MIT-T | mechanical integrity test – tubing | | | | Details |
| MIU | moisture impurities and unsaponifiabales | | | | Details |
| mix | mixer | | | | Details |
| MIXG | mixing | | | | Details |
| MIYP | maximum internal yield pressure (or minimum) | | | | Details |
| MIYP | Maximum Internal Yield Pressure | | | | Details |
| MLI | MALI | | | | Details |
| MobiNil | Mobile Nile | | | | Details |
| MOI | Memorandum of Interest | | | | Details |
| MPGH-Lith | multipurpose grease lithium base | | | | Details |
| MPhil | Master of Philosophy | | | | Details |
| MPI | Magnetic Particle Inspection (is an NDT - See comment) | | | | Details |
| MPI | Message Passing Information (processor communication) | | | | 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 |
| MSI | Mobil System International | | | | Details |
| MSI | Mechanical and Structural Inspection | | | | Details |
| MSI | MSI Carbon / Oxygen Log | | | | Details |
| MSIP | Modular Sonic Imaging Platform | | | | Details |
| MSIPC | Multi Stage inflatable Packer Collar | | | | Details |
| MTIR | medically treated injury rate | | | | Details |
| MVI | Motor Vehicle Incident | | | | Details |
| MWI | MALAWI | | | | Details |
| N.Y.K.Line | Nippon Yusen Kaisha | | | | Details |
| NAVIG | Navigational Log | | | | Details |
| NCGIH | National Conference of Governmental Industrial Hygienists (see ACGIH) | | | | Details |
| NDI | Nondestructive Inspection (See comment of NDT) | | | | Details |
| NEI | National Emissions Inventory | | | | Details |
| NetBIOS | Network Basic Input Output System | | | | Details |
| NFI | No Further Investment | | | | Details |
| NGI | Natural Gas Initiative | | | | Details |
| NGI | Norge Geotekniske Institut Norway | | | | Details |
| NI | NIGERIA | | | | Details |
| NI | NICARAGUA | | | | Details |
| Ni | nickel | | | | Details |
| NIC | National Industrialization Company | | | | Details |
| NIC | NICARAGUA | | | | Details |
| NIC | not in contract | | | | Details |
| NID | notice of intention to drill | | | | Details |
| NIDC | National Iranian Drilling Company | | | | Details |
| NIDOCO | Nile Delta Oil Company Egypt and others | | | | Details |
| NIF | National Islamic Front | | | | Details |
| Nig | Niagra | | | | Details |
| NIGC | National Iranian Gas Company | | | | Details |
| NIGC | National Iranian Gas Company Iran | | | | Details |
| NII | non injury incident (or near miss/ near hit) | | | | Details |
| NIL | Nothing | | | | Details |
| NIMBY | Not In My Backyard | | | | Details |
| Nine | Ninnescah | | | | Details |
| NIO | Notice Inviting Offer | | | | Details |
| Niob | Niobrara | | | | Details |
| NIOC | National Iranian Oil Company | | | | Details |
| NIOC | National Iranian Oil Co. Iran | | | | Details |
| NIOEC | National Iranian Oil Engineering and Construction Company | | | | Details |
| NIOSH | National Institute for Occupational Safety and Health (see comment) | | | | Details |
| NIOSH | National Institute for Occupational Safety and Health | | | | Details |
| nip | nipple | | | | Details |
| NIPC | National Iranian Petrochemical Company Iran | | | | Details |
| NIR | near infared | | | | Details |
| NIRPDC | National Iranian Refining & Petroleum Products Distribution Co. Iran | | | | Details |
| NIS | Norwegian International Shipsregister | | | | Details |
| NIST | National Institute of Standards and Technology | | | | Details |
| NITC | National Iranian Tanker Company | | | | Details |
| NITR | nitrile | | | | Details |
| nitro | nitoglycerine | | | | Details |
| NIU | NIUE | | | | Details |
| NLGI | National Lubricating Grease Institute | | | | Details |
| NMI | nautical line | | | | Details |
| NMTIR | non-medically treated injury rate | | | | Details |
| NOFI | National Oil Fuel Institute | | | | Details |
| NOIA | National Ocean Industries Association | | | | Details |
| NOISL | Noise Log | | | | Details |
| NPHI | Net Ø (porosity) | | | | Details |
| NPHI | Neutron pulse Hydrogen index | | | | Details |
| NPI | Normalized porosity | | | | Details |
| NPIC | National Petrochemical Industrialization Co. Saudi Arabia | | | | Details |
| NRI | Net Revenue Interest | | | | Details |
| OBMI | Oil Base Micro Imager | | | | Details |
| OCI | Oil Corrosion Inhibitor (Vessels) | | | | Details |
| OCIMF | Oil Companies International Marine Forum | | | | Details |
| OCIMF | Oil Companies International Marine Forum (—) | | | | Details |
| OD/ID | outside diameter/inside diameter, usually used in reference to pipe dimension, and a factor in pressure stability of the pipe | | | | Details |
| OFIC | oil insulated fan-cooled | | | | Details |
| OGIC | Oil and Gas India Conference and Exhibition | | | | Details |
| OGIFF | Oil and gas integrated field file | | | | Details |
| OGIP | original gas in place | | | | Details |
| OI | Operational Integrity | | | | Details |
| OI | Oxygen Index | | | | Details |
| OI | oil insulated | | | | Details |
| OIA | Oil Import Administration | | | | Details |
| OIAB | Oil Import Appeals Board | | | | Details |
| OIB | Oman International Bank | | | | Details |
| OIC | Organization of Islamic Conference | | | | Details |
| OIC | Oil Information Committee | | | | Details |
| OIEC | Oil Industries Engineering Company | | | | Details |
| OIES | Oxford Institute for Energy Studies | | | | Details |
| OIFC | oil insulated, fan cooled | | | | Details |
| OIH | Oil in Hole | | | | Details |
| OIIP | oil initially in place | | | | Details |
| Oil | Oil India Umited | | | | Details |
| Oil | Cr Oil Creek | | | | Details |
| oilfract | Oil fractured | | | | Details |
| OILINVEST | Intl. Arm of NOC Libya Libya | | | | Details |
| OILREC | OIL RECovery | | | | Details |
| OIM | Offshore Installation Manager | | | | Details |
| OIM | operations installation manager | | | | Details |
| OIP | Oil Initially in Place | | | | Details |
| OIP | oil in place | | | | Details |
| OIPA | Oklahoma Independent Petroleum Association | | | | Details |
| OISC | oil insulated, self-cooled | | | | Details |
| OISD | OIL INDUSTRY SAFETY DIRECTORATE | | | | Details |
| OIT | oil in tanks | | | | Details |
| OIW | oil in water | | | | Details |
| OIWC | oil immersed, water cooled | | | | Details |
| OKIOC | Offshore Kazakstan International Operating Company | | | | Details |
| OKIOC | Offshore Kazakhstan Intl. Operating Co. Kuwait | | | | Details |
| Olig | Oligocene | | | | Details |
| OMIFCO | Oman-India Ferilizer Company | | | | Details |
| OMNIS | Office des Mines Nationales et des Indusries Strategiques (formerly Office Militaire National Pour Les Industries Strategiques) Madagascar | | | | Details |
| ONRI | octane number requirement increase | | | | Details |
| OOIP | Original Oil In Place | | | | Details |
| OOIP | oil originally in place (or original oil in place) | | | | Details |
| OPI | oil payment interest | | | | Details |
| OPI | Ontario Petroleum Institute | | | | Details |
| OPIC | Overseas Private Investment Corporation | | | | Details |
| OPITO | Offshore Petroleum Industry Training Organization UK | | | | 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 |
| ORRI | overriding royalty interest | | | | Details |
| OSI | oil well shut in | | | | Details |
| OSIDP | oil standing in drillpipe | | | | Details |
| OSTOIP | original stock tank oil in place | | | | Details |
| OTIP | Operational Testing Implementation Plan | | | | Details |
| OVID | Offshore Vessel Inspection Database | | | | Details |
| P & I | Protection & Indemnity | | | | Details |
| P&ID | Piping & Instrumentation Diagram | | | | Details |
| P&ID | Process & Instrumentation Diagram | | | | Details |
| P&ID | Piping and Instrumentation Diagram | | | | Details |
| P&ID | process and instrument diagram | | | | Details |
| P&IDS | piping and instrument diagrams | | | | Details |
| P/DIA | piping diagram | | | | Details |
| PACIN | Paints and Chemical Industries Company | | | | Details |
| PAIL | Plunger Assisted Intermittent Lift | | | | Details |
| PCI | Project Competative Intelligence | | | | Details |
| PCI | Peripheral Component Interconnect | | | | Details |
| PDI | pressure differential indicator | | | | Details |
| PDIC | pressure differential indicator controller | | | | Details |
| PDISC | Petroleum Development Integrated Sub-Committee Meeting | | | | Details |
| PEBI | Perpendicular Bisector (for simulation grids) | | | | Details |
| PEI | production efficiency improvement | | | | Details |
| PEI | Petroleum Equipment Institute | | | | Details |
| PEQUIVEN | Petroquimica de Venezuela Venezuela | | | | Details |
| PERI | Periscope | | | | Details |
| PERTAMINA | Perusahaan Pertambangan Minyak dan Gas Bumi Negara (Indonesian State Oil and Gas Enterprise) Indonesia | | | | 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 |
| PetroFinance | Petroleum Finance Company | | | | 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 |
| 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 |
| PETRONIC | Empresa Nicaraguense del Petroleo Nicaragua | | | | Details |
| PETRO-PRODUCTION | Empresa Estatal de Exploration y Produccion de Petroleos del Ecuador Ecuador | | | | Details |
| PETROQUISA | Petrobras Quimica S.A. Brazil | | | | 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 |
| PFI | Pressure Fluid Imaging technology | | | | Details |
| PGNIG | Polish Oil and Gas Co. Poland | | | | Details |
| P-HDII | perforating Hyperdome II | | | | Details |
| Phi | Porosity | | | | Details |
| PI | Productivity Index | | | | Details |
| PI | Permit Issued | | | | Details |
| PI | Pressure Indicator | | | | Details |
| PI | Productivity Index or (Permit Issued) | | | | Details |
| PI | Petroleum Institute | | | | Details |
| PI | Profit to Investment Ratio | | | | Details |
| PI | PHILIPPINES | | | | Details |
| PI | the productivity Index, usually measured in bbl/day/psi of drawdown | | | | Details |
| PI | Participating Interest | | | | Details |
| PI | penetration index | | | | Details |
| PI | Pine Island | | | | Details |
| PI | pump in | | | | Details |
| PIC | Petrochemical Industries Company | | | | Details |
| PIC | Person In Charge | | | | Details |
| PIC | pressure indicator controller | | | | Details |
| Pic | Cl Pictured Cliff | | | | Details |
| PICA | Petroleum Industry Contractors Association | | | | Details |
| PID | Piping & Instrumentation Diagram | | | | Details |
| PID | Perforation Inflow Diagnostic (see comment) | | | | Details |
| PID | Project Identification Document | | | | Details |
| PIDEC | Petrochemical Industries and Engineering Company | | | | Details |
| PIEA | Petroleum Industry Electrical Association | | | | Details |
| PIF | Productivity Improvement Factor (UBD PI devided by OB PI) If PIF>1, UBD is good | | | | Details |
| PIF | Public Investment Fund | | | | Details |
| PIF | Production Improvement Factor | | | | Details |
| PIG | Pipeline Inspection Gauge | | | | Details |
| pig | Pipeline cleaning and measuring tool | | | | Details |
| pig | catcher Used to remove pipeline pig | | | | Details |
| pig | launcher Used to insert pipeline pig | | | | Details |
| PIL | Petrofac International Limited | | | | Details |
| PIL | Phasor Induction Log | | | | Details |
| Pill | a volume of gelled fluid mixed for a specific purpose A fluid loss pill for example | | | | Details |
| Pilot | a small scale test or trial used to assess the feasibility of a process to a reservoir or field | | | | Details |
| PILS | Platform Inline spinner in PLT tool of Schlumberger (Spinner) | | | | Details |
| PIM | Pre Installed Mooring (Offshore Rig) | | | | Details |
| PIMMS | Production Information Management and Monitoring System | | | | Details |
| Pin | Pressure intake (pressure at the tubing entry) | | | | Details |
| PIN | Project Initiation Note (facilities) | | | | Details |
| Pinj | bottom-hole injection pressure | | | | Details |
| pinpt | pinpoint | | | | Details |
| PINTL | Production Interpretation | | | | Details |
| PIP | Project Improvement Plan | | | | Details |
| PIP | Pump Intake Pressure | | | | Details |
| PIP | Pipe in Pipe | | | | Details |
| PIP | trademarked name for a pin point injection packer | | | | Details |
| PIP | pump-in pressure | | | | Details |
| PIP | Phillips-Imperial Petroleum Ltd. UK | | | | Details |
| PIPA | Personal Information and Privacy Act | | | | Details |
| Pipe | Coating Terminology and Definitions | | | | Details |
| PIR | Post Implementation Review | | | | Details |
| PIRC | PI Research Center | | | | Details |
| PIRINC | Petroleum Industry Research Foundation, Inc. | | | | Details |
| PIS | Pumping In Sub | | | | Details |
| piso | pisolites, pisolitic | | | | Details |
| PISS | pump in spinner survey | | | | Details |
| PISTL | pump in spinner temperature log | | | | Details |
| PIT | Pressure Integrity Test | | | | Details |
| PIT | Perforation Inflow Test | | | | Details |
| PIT | Packer Integrity Test | | | | Details |
| PIT | packer integrity test Pressure testing the tubing/casing annulus to insure isolation | | | | Details |
| pit | pitted | | | | Details |
| PITA | perforation inflow test analysis | | | | Details |
| PITS | pump in temperature survey | | | | Details |
| PITS | Petroleum Industry Training Service | | | | Details |
| Pixel | Picture Element | | | | Details |
| PKI | Public Key Infrastructure | | | | Details |
| Pleist | Pleistocene | | | | Details |
| Plio | Pliocene | | | | Details |
| PMI | Positive Material Identification | | | | Details |
| PMI | Inclinometer Survey Directional | | | | Details |
| PMIT | PS Platform Multifinger Imaging Tool | | | | Details |
| PNID | process and instrument diagram | | | | Details |
| pois | poison | | | | Details |
| POLICOLSA | Poliolefinas Colombianas S.A. Colombia | | | | Details |
| PORMINER | Promotora de Minmercados S.A. Spain | | | | Details |
| PPI | Post Pipelay Installation | | | | Details |
| PPI | Post Production Inspection/Intervention | | | | Details |
| PPI | Private Participation in Infrastructure | | | | Details |
| PPI | Positive Performance Indicators | | | | Details |
| PPI | production payment interest | | | | Details |
| PPI | Process Performance Index | | | | Details |
| PPI | Plastic Pipe Institute | | | | Details |
| PRECIP | precipitator | | | | Details |
| prelim | preliminary | | | | Details |
| PRI | PUERTO RICO | | | | Details |
| pri | primary | | | | Details |
| PRI | Petroleum Recovery Institute | | | | Details |
| prin | principal | | | | Details |
| priv | privilege | | | | Details |
| psi | Pound per Square Inch | | | | Details |
| Psi | Pounds per square inch | | | | Details |
| PSI | profit-sharing interest | | | | Details |
| psi, | PSI pounds per square inch | | | | Details |
| psia | pounds per square inch (absolute) | | | | Details |
| psia | Pound per Square Inch Absolute (above zero pressure) | | | | Details |
| PSIA | Pounds Per Square Inch Atmospheric | | | | Details |
| PSIA | pounds per square inch absolute | | | | Details |
| psia | Pounds per Square Inch Absolute | | | | Details |
| psia, | PSIA pounds per square inch absolute | | | | Details |
| psig | pounds per square inch (gauge) | | | | Details |
| PSIG | Pounds Per Square Inch Gauge | | | | Details |
| psig | Pound per Square Inch Gauge (above 1 atm) | | | | Details |
| PSIG | pounds per square foot gauge | | | | Details |
| psig, | PSIG pounds per square inch gauge | | | | Details |
| PTIT | Petroleum Institute of Thailand Thailand | | | | Details |
| PTSI | PT Stanvac Indonesia Indonesia | | | | Details |
| PTTEPI | PTTEP International Ltd. Thailand | | | | Details |
| PUIC | pulled up in casing | | | | Details |
| PVi | Pore Volume injected (waterflood) | | | | Details |
| PWI | produced water injection | | | | Details |
| PWRI | Produced Water Re-injection | | | | Details |
| PWRI | Power Water Re-Injection | | | | Details |
| pyrbit | pyrobitumen | | | | Details |
| PZIG | At-Bit Inclination and Gamma Ray | | | | Details |
| QABICO | Qatar Hot Briquetted Iron Company | | | | Details |
| QAIT | Slim Hostile Array Inducation Tool | | | | Details |
| Qi | injection rate (ie water, gas) | | | | Details |
| QI | Quantitative Interpretation (Seismic) | | | | Details |
| QIB | Qatar Islamic Bank | | | | Details |
| QIIB | Qatar International Islamic Bank | | | | Details |
| QUIMAR | Quimica del Mar, S.A. Mexico | | | | Details |
| quint | quintuplicate | | | | Details |
| R H DIP | 4 Arm High Resolution Diplog | | | | Details |
| RACI | Responsible / Accountable / Consulted / Informed | | | | Details |
| RAID | Redundant Array of Inexpensive (or Independent) Disks | | | | Details |
| RASIOM | Raffinerie Siciliane Olii Minerali Italy | | | | Details |
| Razi | al- The Saudi Methanol Company | | | | Details |
| RBI | Risk Based Inspection | | | | Details |
| RCI | Reservoir Characterization Instrument | | | | Details |
| RCI | Reservoir Charactization Instrument (logging tool) | | | | Details |
| RECIP | reciprocate | | | | Details |
| recip | reciprocate(ing) | | | | Details |
| recirc | recirculate | | | | Details |
| REFRIG | refrigerator(rant)(tion) | | | | Details |
| reinf | reinforce(ed)(ing)(ment) | | | | Details |
| reinf | conc reinforced concrete | | | | Details |
| RESI | Resistivity Log | | | | Details |
| resid | residual, residue | | | | Details |
| RESIS | resistor(s) | | | | Details |
| RESISA | Resinas Sinteticas S.A. Spain | | | | Details |
| RESOI | Residual Oil | | | | Details |
| RFI | Request for Information | | | | 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 |
| rls(d)(ing) | release(ed)(ing) | | | | Details |
| RLWI | Rig Less Well Intervention | | | | Details |
| RLWI | Riserless Light Well Intervention | | | | Details |
| RNI | Rassemblement National des Independants | | | | Details |
| ROI | Return On Investment | | | | Details |
| RPI | Reciprocal Productivity Index | | | | Details |
| RPI | Research Planning Institute | | | | Details |
| RQI | Reservoir Quality Index | | | | Details |
| Rsi | Initial gas oil ratio | | | | Details |
| RSI | Repetitive strain injury | | | | Details |
| RVI | Remote Visual Inspection | | | | Details |
| RWI | Raw Water Injection | | | | Details |
| S Riv | Seven Rivers | | | | Details |
| S/I | Shut in | | | | Details |
| SABIC | Saudi Basic Industries Corporation | | | | Details |
| SABIC | Saudi Arabia Basic Industries Corporation | | | | Details |
| SABIC | Saudi Arabia Basic Industries Corporation Saudi Arabia | | | | Details |
| Saib | Saudi Investment Bank | | | | Details |
| SAIF | Saudi Arabia Investment Fund | | | | Details |
| SAIT | Slimhole Array Induction | | | | Details |
| Samir | Société Marocaine de Raffinage | | | | Details |
| sani | sanitary | | | | Details |
| SAPIA | South African Petroleum Industry Assn. South Africa | | | | Details |
| SARPI | Ste. Algerienne pour la Reparation des Pipelines Algeria | | | | Details |
| SATSHINC | SATurdays, Sundays, Holidays INCluded | | | | Details |
| Saudi | Aramco Saudi Arabian Oil Company | | | | Details |
| SAUDI | Saudi Arabian Oil Company ARAMCO Saudi Arabia | | | | Details |
| Saudi Aramco | Saudi Arabian Oil Company | | | | Details |
| Saudia | Saudi Arabian Airlines | | | | Details |
| SCFIL | Structurally Consistent Filtering | | | | Details |
| SCIRI | Supreme Council of the Islamic Revolution in Iraq | | | | Details |
| SCIS | Society for Contemporary Iranian Studies | | | | Details |
| SCSI | Small Computer Standard Interface | | | | Details |
| SDI | Standard Drilling Instruction | | | | Details |
| SDIC | Sonic Dual Induction | | | | Details |
| SDIP | STRATA DIP® | | | | Details |
| sdoilfract | sand-oil fracked | | | | Details |
| SEDHI | Sedimentary History | | | | Details |
| SEDIGAS | Sociedad para el Estudio y Desarrallo de la Industria del Gas S.A. Spain | | | | Details |
| SEDIM | Sedimentology | | | | Details |
| SEI | Safety Effective Indicators | | | | Details |
| seis | SelSIUlC | | | | Details |
| seis | seismograph, seismic | | | | Details |
| SELFDISCH | SelfDischarger | | | | Details |
| Semi (or Semi-Sub) | Semi-Submersible Drilling Rig | | | | Details |
| SEPIL | Shell Exploration and Production, Ireland | | | | Details |
| SERVICES | SCHLUMBERGER WELL | | | | Details |
| SFL DIL | Dual Induction | | | | Details |
| SGIIP | Soln Gas Initially In Place | | | | Details |
| SGSI | Shell Global Solutions International | | | | Details |
| SHELL IS | Shell Internal Standard | | | | Details |
| Shin | Shinarump | | | | Details |
| SHINC | Sundays, Holidays Included | | | | Details |
| Si | Single | | | | Details |
| SI | Shut In well | | | | Details |
| SI | Scale Inhibitor | | | | Details |
| SI | SLOVENIA | | | | Details |
| SI | shut in | | | | Details |
| SI/TA | Shut In/Temporarily Abandoned | | | | Details |
| SIBHP | Shut-In Bottom Hole Pressure | | | | Details |
| SIBHP | shut in bottom hole pressure | | | | Details |
| SIBHP | shutin bottom-hole pressure | | | | Details |
| Sibneft | Siberian Oil | | | | Details |
| SICP | Shut-In Casing Pressure | | | | Details |
| SICP | shut in casing pressure | | | | Details |
| SICP | shutin casing pressure | | | | Details |
| SICP | Suez Oil Company Egypt and others | | | | Details |
| SID | Standing Instruction for Drillers | | | | Details |
| SID | Single Deck | | | | Details |
| SIDF | Saudi Industrial Development Fund | | | | Details |
| Sidpec | Sidi Kerir Petrochemicals Company | | | | Details |
| SIDPP | Shut-In Drill Pipe Pressure | | | | Details |
| SIDPP | shut in drill pipe pressure | | | | Details |
| SIDSM | Sidewall Sample | | | | Details |
| SIEP | Shell International Exploration & Production | | | | Details |
| SIG | Special Interest Group (PI) | | | | Details |
| SIG | Sigma Smoothing | | | | Details |
| SIGN | Acoustic Signature AC | | | | Details |
| SIGTTO | Society of International Gas Tanker and Terminal Operators | | | | Details |
| SIGW | shutin gas well | | | | Details |
| SIH | started in hole | | | | Details |
| SIL | Safety Integrity Review (HSE) | | | | Details |
| SIL | Safety Integrity Level | | | | Details |
| Sil | Silurian | | | | Details |
| silc | siliceous | | | | Details |
| silic | silica, siliceous | | | | Details |
| silt | siltstone | | | | Details |
| SIM | selective ion monitoring | | | | Details |
| sim | similar | | | | Details |
| SIMCON | Simultaneous Construction | | | | Details |
| SIMDUT | Système d'information sur les matières dangereuses utilisées au travail (see WHMIS) | | | | Details |
| SimOps | Simultaneous Operations | | | | Details |
| SIMS | Simulation Software | | | | Details |
| Sina’at | Emirates Basic Industries Company | | | | Details |
| SINOPEC | Chinese Petroleum and Chemical CorporationChina | | | | Details |
| SIOW | shutin oil well | | | | Details |
| SIP | Selective Inflow Performance | | | | Details |
| SIP | Selective Injection Packer (Halliburton) | | | | Details |
| SIP | Shut In Pressure | | | | Details |
| SIP | shutin pressure | | | | Details |
| SIP | State Implementation Plan | | | | Details |
| SIPC | Saudi International Petrochemicals Co. Saudi Arabia | | | | Details |
| SIPD | Shell India Production and Development | | | | Details |
| SIPES | Soceity of Independent Professional Earth Scientists, United States | | | | Details |
| SIPETROL | Sociedad Internacional Petrolera S.A. Chile | | | | Details |
| Siph. | d. Siphonina davisi | | | | Details |
| SIPM | Shell Internationale Petroleum Maatschappij | | | | Details |
| SIR | Societe Ivoirienne de Raffinage Cote d’Ivoire | | | | Details |
| SIRIM | Standards & Industrial Research Institute of Malaysia Malaysia | | | | Details |
| SIS | Schlumberger Information Solution | | | | Details |
| SISCO | Saudi Industrial Services Company | | | | Details |
| SIT | System Integration and Test | | | | Details |
| SIT | Shut-In Tool | | | | Details |
| SIT | System Integration Test FR SIT Field Representation SIT - Field Representation SIT | | | | Details |
| SIT | Stackup Integrity Test (For Wellhead tree) | | | | Details |
| SIT | Free Point Indicator | | | | Details |
| SITHP | Shut In Tubing Hanger/Head Pressure (another term for CITHP) | | | | Details |
| SITHP | Shut-In Tubing Hanger Pressure | | | | Details |
| SITHP | shut in tubing head pressure | | | | Details |
| SITP | Shut-In Tubing Pressure | | | | Details |
| SITP | shut in tubing pressure | | | | Details |
| SITP | shutin tubing pressure | | | | Details |
| SITT | Single TT Log | | | | Details |
| SIVCG | Saudi Industrial Venture Capital Group | | | | Details |
| SIWHP | Shut In Well Head Pressure | | | | Details |
| SIWHP | Shut-In Well Head Pressure | | | | Details |
| SIWHP | shutin wellhead pressure | | | | Details |
| SIWOP | shutin, waiting on potential | | | | Details |
| skim | skimmer | | | | Details |
| sli | slight, slightly | | | | Details |
| sli | slight(ly) | | | | Details |
| Sli | Sligo | | | | Details |
| sli | SO slight show of oil | | | | Details |
| SLIM1 | Slim Hole Retrievable MWD Tool | | | | Details |
| Smithw | Smithwick | | | | Details |
| SMRI | Solution Mining Research Institute | | | | Details |
| SNI | Société Nationale d’Investissements | | | | Details |
| SOCIR | Societe Congo-Italianne de Raffinage Dem. Rep. of the Congo | | | | Details |
| SOCMI | synthetic organic chemical manufacturing industry | | | | Details |
| SOCMI | Synthetic Organic Chemical Industry | | | | Details |
| SOGUIP | Societe Guineane de Petroles Guinea | | | | Details |
| SOHIC | Stress-oriented Hydrogen-induced Cracking | | | | Details |
| SOHIO | Standard Oil Co. of Ohio | | | | Details |
| Soi | oil Saturation initial | | | | Details |
| SONIDEP | Societe Nigerienne de Produits Petroliers Niger | | | | Details |
| SOQUIP | Societe Quebecoise d’Initiatives Petrolieres Canada | | | | Details |
| SOW_Slip | On Wellhead | | | | Details |
| SPC BVI | Sonatrach Petroleum Corp. British V.I. | | | | Details |
| SPI | Svenska Petroleum Institutet och Oljebolagen I Sverige Sweden | | | | Details |
| SPI | Societe Petrolifera Italiana Italy | | | | Details |
| spic | spicule(ar) | | | | Details |
| SPIC | Southern Petrochemical Industries Corp. Ltd. India | | | | Details |
| Spiro.b. | Spiroplectammina barrowi | | | | Details |
| Sprin | Springer | | | | Details |
| sq in | square inch | | | | Details |
| SSHINC | Saturdays, Sundays, Holidays INCluded | | | | Details |
| SSIV | Subsea Isolation Valve | | | | Details |
| SSIV | sub surface (or subsea) isolation valve Often placed in offshore pipelines within a few hundred meters of the facility to give an emergency stop point in the event of a line rupture or fire | | | | Details |
| SSWI | Subsea Well Intervention | | | | Details |
| STAATSOLIE | Staatsolie Maatschappij Suriname NV (State Oil Co. Suriname NV) Suriname | | | | Details |
| STATOIL | Den Norske Stats Oljeselskap AS Norway | | | | Details |
| stging | straightening | | | | Details |
| STI | Simultaneous Triple Induction | | | | Details |
| STIF | stiffener | | | | Details |
| STIMU | Stimulation Report | | | | Details |
| stip | stippled | | | | Details |
| stir | stirrup | | | | Details |
| STOIIP | Stock Tank Oil Initially In Place | | | | Details |
| stoip | stock tank oil in place | | | | Details |
| STOOIP | Stock Tank Original Oil In Place | | | | Details |
| stri | striated | | | | Details |
| SVI | smoke volatility index | | | | Details |
| Swi | initial water saturation | | | | Details |
| Swi | irrudicable water saturation, (same as Swc) | | | | Details |
| Swi | Irreducible Water Saturation | | | | Details |
| SWI | saltwater injection | | | | Details |
| Swin | Initial Water Saturation | | | | Details |
| SWION | shut well in overnight | | | | Details |
| SYSEI | Synthetic Seismogram Log | | | | Details |
| TAI | Thermal alteration index | | | | Details |
| TAIB | Trans-Arabian Investment Bank | | | | Details |
| TAIC | The Arab Investment Company | | | | Details |
| TAMOIL | Subsidiary of NOC Libya Libya | | | | Details |
| TAPLI | Tape Listing | | | | Details |
| Tapline | Trans-Arabian Pipeline or Trans-Arabian Pipe Line Company | | | | Details |
| T-Bills | Treasury Bills | | | | Details |
| TCI | Tunsgten Carbide Insert (a type of rollercone drillbit) | | | | Details |
| TCI | Telecommunications Company of Iran | | | | Details |
| TCP/IP | Transmission Control Protocol / Internet Protocol | | | | Details |
| TDI | temperature differential indicator | | | | Details |
| TECHINT | Compania Technica Internacional Brazil | | | | Details |
| Technical | Information Service | | | | Details |
| TEOTWAWKI | The End of the World as We Know It (and I feel fine) | | | | Details |
| termin | terminate(ed)(ing)(ion) | | | | Details |
| TEXSPAIN | Texaco (Spain) Inc. Spain | | | | Details |
| Tfing | Three Finger | | | | Details |
| THAI | Toe-to-Heel Air Injection | | | | Details |
| THAI | toe to heel air injection | | | | Details |
| THI | threshold hydrate inhibitor | | | | Details |
| Thief | to remove a sample from a tank for analysis | | | | Details |
| thin film | Type of epoxy coating for pipeline coating rather than threading or welding | | | | Details |
| thrling | throttling | | | | Details |
| TI | Temperature Indicator | | | | Details |
| TI | Technical Integrity | | | | Details |
| TI | TAJIKISTAN | | | | Details |
| ti | tight | | | | Details |
| TIC | temperature indicator controller | | | | Details |
| TIDCO | Tamil Nadu Industrial Development Corporation | | | | Details |
| TIE | Tie In Log | | | | Details |
| TIEBK | Tieback Report | | | | Details |
| TIFF | Tagged Image File Format | | | | Details |
| TIFL | tubing integrity fluid level | | | | Details |
| TIG | Tech Information Group (SPE subteams) | | | | Details |
| TIH | Trip in Hole | | | | Details |
| TIH | Trip Into Hole | | | | Details |
| TII | The International Investor | | | | Details |
| TIM | Timpas | | | | Details |
| TIME | Time Log | | | | Details |
| Timpo | Timpoweap | | | | Details |
| TIOGE | Turkmenistan International Oil and Gas Conference | | | | Details |
| TIP | Taking Inward Pilot | | | | Details |
| TIP | Tender Invitation Package | | | | Details |
| TIPRO | Texas Independent Producers and Royalty Owners Association | | | | Details |
| tite | tight | | | | Details |
| TIV | tubing isolation valve | | | | Details |
| TIW | Texas Iron Works (valve), it is the same as kelly cock! (see comment!) | | | | Details |
| TIWTM | Texas Iron Works (manufacturer) | | | | Details |
| TLI | Top of Logging Interval | | | | Details |
| TOI | Transocean International (Rig co) | | | | Details |
| TPI | Third Party Inspection | | | | Details |
| TPI | Texas Petro Index | | | | Details |
| TPIC | Turkish Petroleum International Company Ltd. Turkey | | | | Details |
| TPSI | Compression strength of the target material (some analysis on perforating charges) | | | | Details |
| TPSI | tubing pressure shut in | | | | Details |
| TRAPIL | Societe des Transports Petroliers Par Pipeline France | | | | 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 |
| TROIF | Total Recordable Occupational Incident Frequency | | | | Details |
| TSI | Temporarily Shut In | | | | Details |
| TSITC | temperature survey indicated top cement at | | | | Details |
| TV/BIP | Ratio of Total Volume (ore and overburden) to Bitumen In Place | | | | Details |
| TWI | techniques of water-resources investigations | | | | Details |
| TxIA | tubing by inside annulus | | | | Details |
| UBHI | Unique Bohr Hole Index | | | | Details |
| UBI | Ultrasonic Borehole Imager | | | | Details |
| UBIRE | Ultrasonic Borehole Imager Report | | | | Details |
| UCI | Unique Client Identification (number) | | | | Details |
| UCSIP | Union des Chambres Syndicales de l’Industrie du Petrole France | | | | Details |
| UDIP | Ultrasonic Diplog | | | | Details |
| UFIP | Union Francaise des Industries Petrolieres France | | | | Details |
| UI | User Interface | | | | Details |
| UIC | Underground Injection Control | | | | Details |
| UIE | Union Industrielle et d’Entreprise France | | | | Details |
| UKPIA | UK Petroleum Industry Assn. Ltd. UK | | | | Details |
| UMI | UNITED STATES MINOR OUTLYING ISLANDS | | | | Details |
| undiff | undifferential | | | | Details |
| uni | uniform | | | | Details |
| Unicef | United Nations International Children Emergency Fund | | | | Details |
| UNIGAGE | It is data recorder and storage of the gauges. It has processing chip for data. (SLB) | | | | Details |
| UNIKOM | UN Iraq-Kuwait Observer Force | | | | Details |
| Univ | university, universal | | | | Details |
| UNIVAC | Universal Automatic Computer | | | | Details |
| UNIX | Uniple X information and computer services | | | | Details |
| UPI | Unit Participating Interest (Unitization) | | | | Details |
| USAID | US Agency for International Development | | | | Details |
| USExim | US Export-Import Bank | | | | Details |
| USI | Ultra sonic imager | | | | Details |
| USIL | United Safety International Limited | | | | Details |
| USIT | Ultra Sonic Imaging Tool | | | | Details |
| USIT | Ultra Sound Image Tool (Cement & Corrosion) | | | | Details |
| USIT | Ultrasonic Imager Tool | | | | Details |
| USIT | a brand name for ultrasonic inspection tool, a corrosion damage monitoring device | | | | Details |
| USITM | ultrasonic imager | | | | Details |
| UUIWCTAUTC | Unless Used In Which Case Time Actually Used To Count. | | | | Details |
| Uvig. | lir. Uvigerina lirettensis | | | | Details |
| UWI | Unique Well Identifier (well code number) | | | | Details |
| UWILD | Underwater Inspection in Lieu of Dry Docking | | | | Details |
| vari | variegated | | | | Details |
| VERIF | Verification List | | | | Details |
| VERLI | Verification Listing | | | | Details |
| VI | Viscosity Index ( is an arbitrary measure for the change of viscosity with temperature.) | | | | Details |
| VI | VIRGIN ISLANDS (BRITISH) | | | | Details |
| VI | VIRGIN ISLANDS (US) | | | | Details |
| Vi | Viola | | | | Details |
| VI | viscosity index | | | | Details |
| vi sc | viscosity | | | | Details |
| VIB | vibrate(tor)(ing) | | | | Details |
| VIBR | Vibrator | | | | Details |
| VIEW | View | | | | Details |
| VIPER | VIPER Slimhole Coiled Tubing MWD Tool | | | | Details |
| VIPR | Circulation valve (Haliburton) | | | | Details |
| VIPs | Value Improvement Practices (Shellspeak) | | | | Details |
| VIPTM | a finite difference reservoir simulator that replaced GCOMPTM | | | | Details |
| VIR | Value Investment Ratio | | | | Details |
| VIR | VIRGIN ISLANDS (US) | | | | Details |
| Virg | Virgelle | | | | Details |
| vis | viscosity | | | | Details |
| vis | visible | | | | Details |
| VISC | Viscosity | | | | Details |
| VISME | Viscosity Measurement | | | | Details |
| VISP | Vertical Incident Seismic Profile | | | | Details |
| VIT | Vertical Interference Test | | | | Details |
| VIT | Vacuum Insulated Tubing (high performance tubing used for thermal wells etc.) | | | | Details |
| VIT | vacuum insulated tubing | | | | Details |
| vit | vitreous | | | | Details |
| VITOL | Vitol and global subsidaries Netherlands | | | | Details |
| VIV | Vortex induced Vibration | | | | Details |
| VOI | Value Of Information | | | | Details |
| VOI | Value of Investment | | | | Details |
| Voids | holes, blanks spots or empty areas | | | | Details |
| VSI | Borehole Seismic Acquisition Tool | | | | Details |
| v-sli | very slight, slightly | | | | Details |
| v-sli | very slight | | | | Details |
| VTISF | Vertical Thickness ISF Log | | | | Details |
| WARI | walk around rig inspection | | | | Details |
| WBIH | went back in hole | | | | Details |
| WDI | Wind Direction Instrument | | | | Details |
| WHI | Water Holdup Indicator | | | | Details |
| WHIG | Whitehouse Gauge | | | | Details |
| WHIP | wellhead injection pressure | | | | Details |
| whip | whipstick | | | | Details |
| WHMIS | Workplace Hazardous Materials Information System (see comment) | | | | Details |
| WHSIP | Wellhead Shut-In Pressure | | | | Details |
| WI | Water Injection | | | | Details |
| WI | Working Interest (see comment) | | | | Details |
| WI | Wax Inhibitor | | | | Details |
| Wi | cumulative Water Injected | | | | Details |
| Wi | Cumulative water injected (material balance) | | | | Details |
| WI | WESTERN SAHARA | | | | Details |
| WI | Wisconsin | | | | Details |
| WI | Working Interest | | | | Details |
| WIBON | Whether In Berth Or Not | | | | Details |
| Wich | Alb Wichita Albany | | | | Details |
| Wich | Wichita | | | | Details |
| WIFPON | Whether In Free Praqtique Or Not | | | | Details |
| WIH | Wash In Hole | | | | Details |
| WIH | water in hole | | | | Details |
| WIIFM | What's In It For Me? :)) | | | | Details |
| Willb | Willberne | | | | Details |
| WIMS | Well Integrity Management System | | | | Details |
| WIMS | Workover Information Management System data base | | | | Details |
| Win | Winona | | | | Details |
| Winf | Winfield | | | | Details |
| Wing | Wingate | | | | Details |
| Winn | Winnipeg | | | | Details |
| WIO | working interest owners | | | | Details |
| WIOP | well integrity operations procedure | | | | Details |
| WIP | Work in Progress | | | | Details |
| WIP | work in place | | | | Details |
| WIPA | Wyoming Independent Producers Association | | | | Details |
| WIPON | Whether In Port Or Not | | | | Details |
| WIPSP | WIP Stock Packer | | | | Details |
| WIQI | Well Inflow Quality Indicator (actual well inflow/"ideal" well inflow) | | | | Details |
| WIT | Water Investigation Tool | | | | Details |
| WIT | well isolation tool | | | | Details |
| WITA | WIng TAnk | | | | Details |
| WITS | Well Site Information Transfer System | | | | Details |
| WITSML | Well Information Transfer Standard Markup Language | | | | Details |
| WIW | Water Injection Well | | | | Details |
| WLI | Well Log Interpretation | | | | Details |
| WOI | Waiting On Ice | | | | Details |
| WRIC | Wire Rods in Coils | | | | Details |
| WRIV | wireline removable insert valve | | | | Details |
| WSIM | water separation index modified | | | | Details |
| WTI | Well Test Interpretation | | | | Details |
| WTI | West Texas Intermediate benchmark crude | | | | Details |
| WTI | West Texas Intermediate | | | | Details |
| WTI | West Texas Intermediate (crude oil) | | | | Details |
| WTI | west Texas intermediate crude oil | | | | Details |
| WYSIWYG | What You See Is What You Get | | | | Details |
| WYSIWYM | What You See Is What You Model | | | | Details |
| X-bdd(ing) | crossbedded, crossbedding | | | | Details |
| XBI | BASSAS DA INDIA | | | | Details |
| Xing | crossing | | | | Details |
| X-line | extreme line | | | | Details |
| XMRI | Extended Range Micro Imager (Halliburton) | | | | Details |
| Yeminvest | Yemen Investment and Development International | | | | Details |
| YI | SERBIA AND MONTENEGRO | | | | Details |
| YIL | yellow indicating lamp | | | | Details |
| Z list | OSHA list of hazardous chemicals (29 CFR 1910 Subpart Z, Worker Right-To-Know) | | | | Details |
| ZHI | al-Zamil Heavy Industries | | | | Details |
| ZI | ZIMBABWE | | | | Details |
| Zil | Zilpha | | | | Details |
| ZOI | Zone Of Interest | | | | Details |
| ZOI | Zone Of Influence | | | | Details |
| CIT | Casing Inspection Tool | | | | Details |
| IPS | Intelligent Production Systems | | | | Details |
| ICSS | Internally catalyzed silicate systems | | | | Details |
| ICS | Internally catalyzed silicates | | | | 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 |
| OIM | Operations, Integrity & Maintenance | | | | Details |
| ICOFC | Iranian Central Oil Fields Company | | | | Details |
| LWDI | Lost Work-day Injury | | | | Details |
| RWI | Restricted Work Injury | | | | Details |
| MTI | Medical Treatment Injury | | | | Details |
| FAI | First Aid Injury | | | | Details |
| GPTKISH | Global Petro Tech Kish | | | | Details |
| NIORDC | National Iranian Oil Refining & Distribution Company | | | | Details |
| IRITEC | Consortium of Iran International Engineering Company | | | | Details |
| NICO | Naftiran Intertrade Company | | | | Details |
| IDRO | Iran Development and Reconstruction Organization | | | | Details |
| PIHO | Petroleum Industry Health Organization | | | | Details |
| NISOC | National Iranian South Oil Company | | | | Details |
| MTBI | Mean Time Between Incidents | | | | Details |
| IPC | Iranian Petroleum Contract | | | | Details |
| LKPI | Local Key Performance Indicator | | | | Details |
| LKPI | Logistics Key Performance Indicator | | | | Details |
| SiZi | Sitzung Zimmer (meeting room) | | | | Details |
| PSI | Process Safety Information | | | | Details |
| IDM | Innen-durch-messer | | | | Details |
| IR | Inside Radius | | | | Details |
| IRMN | Inside Radius Minimum | | | | Details |
| IRMX | Inside Radius Maximum | | | | Details |
| IRAV | Inside Radius Average | | | | Details |
| DI | Diamond Inner Row Inserts | | | | Details |
| DIH | Diamond Inner & Heel Row Inserts | | | | Details |
| TLI | Top Logged Interval | | | | Details |
| BLI | Bottom Logged Interval | | | | Details |
| ENGI | Logging Engineer`s Name | | | | Details |
| WITN | Witness`s Name | | | | Details |
| LOGDIR | Logging Direction Up or Down | | | | Details |
| SIR | Surface Injection Rate | | | | Details |
| SPINS | Spinner Size | | | | Details |
| SPINP | Spinner Pitch | | | | Details |
| AICD | Autonomous Inflow Control Device | | | | Details |
| I/W | Injection/Withdrawal | | | | Details |
| VIP | Value Improving Practices | | | | Details |
| VI | Visual Inspection | | | | Details |
| Kair | Air Permeability | | | | Details |
| NRIS | Natural Resources Information System | | | | Details |
| FIP | Fluid In Place | | | | Details |
| OFIP | Original Fluid In Place | | | | Details |
| Abwältigung | In a well when it is needed to change the producing interval back to a deeper interval; needs isolation of upper perfs etc. | | | | Details |
| Aufwältigung | In a well when it is needed to change the producing interval to a shallower interval | | | | Details |
| PIP | Petroleum Initially-In-Place (total reserve prospect) | | | | Details |
| CIO | Chief Information Officer | | | | Details |
| ITT | same as DT - Delta-T (also called Slowness or Interval Transit Time) | | | | Details |
| PHIE | Effective Porosity | | | | Details |
| DPI | Disposable Personal Income | | | | Details |
| CPI | Consumer Price Index | | | | Details |
| LIS | Log Information Standard | | | | Details |
| DLIS | Digital Log Information Standard | | | | Details |
| MIPS | Million Instructions Per Second | | | | Details |
| FSIP | final shut-in pressure | | | | Details |
| IFP | initial flowing pressure | | | | Details |
| IHP | initial hydrostatic pressure | | | | Details |
| IpfP | initial pre-flow pressure | | | | Details |
| ISI | initial shut-in | | | | Details |
| ISIP | initial shut-in pressure | | | | Details |
| FSI | final shut-in | | | | Details |
| IA | Infinite Acting | | | | Details |
| TIA | Total Intensity Anomaly | | | | Details |
| IMF | Interplanetary Magnetic Field | | | | Details |
| IAGA | International Association of Geomagnetism and Aeronomy | | | | Details |
| IGRF | International Geomagnetic Reference Field | | | | Details |
| IFR | Infield Referencing | | | | Details |
| DIM | Declination-Inclination Magnetometer | | | | Details |
| TMI | Total Magnetic Intensity | | | | Details |
| ISCWSA | Industry Steering Committee on Wellbore Survey Accuracy | | | | Details |
| IU | Im Urlaub | | | | Details |
| KIP | Kittsee Petrzalka Gasleitung | | | | Details |
| ILT | Instructor-Led Training | | | | Details |
| IE | Internet Explorer | | | | Details |
| WTKI | Well Test Knowledge International | | | | Details |
| SI | Seismic Interpretation | | | | Details |
| I0 | I0 Intermittierendes Gaslift | | | | Details |
| WHIT | Well Head Isolation Tool | | | | Details |
| I.res | Inplace reserven | | | | Details |
| DIFA | Dismantle Inspection and Failure Analysis | | | | Details |
| RMI | Returned Miscible Injectant | | | | Details |
| FGIP | Free Gas In Place | | | | Details |
| GIR | Gas Injection rate | | | | Details |
| WIR | Water Injection Rate | | | | Details |
| IP | In Place | | | | Details |
| GIP | Gas In Place | | | | Details |
| OIP | Oil In Place | | | | Details |
| WIP | Water In Place | | | | Details |
| IIP | Initial In Place | | | | Details |
| IWS | Ideal Wellbore Storage | | | | Details |
| TIF | Thermally Induced Fracturing | | | | Details |
| SOI | Southern Oscillation Index | | | | Details |
| Di | Decline | | | | Details |
| IHH | Initial Hydrostatic Head | | | | Details |
| U/min | Umdrehungen pro minuten | Rotation per minute | | | Details |
| LOWIS | Life Of Well Information Software | | | | Details |
| ISDS | investor state dispute settlement | | | | Details |
| IPS | Ins Produktion Setzung | to connect to | | | Details |
| PIF | Pacific Islands Forum | | | | Details |
| SHI | Samsung Heavy Industries | | | | Details |
| IDER | Impulse Derivatve | | | | Details |
| IG | Inert Gas | | | | Details |
| int | Interpretation | | | | Details |
| WI | Well Intervention | | | | Details |
| SEDI | Sediments | | | | Details |
| IEV | Malaysia-based services company ? | | | | Details |
| IOU | I Owe You | | | | Details |
| IOU | investor-owned utilities | | | | Details |
| ITU | International Telecommunications Union | | | | Details |
| BIF | Burundi Franc | | | | Details |
| GIP | Gibraltar Pound | | | | Details |
| ISK | Iceland Krona | | | | Details |
| INR | Indian Rupee | | | | Details |
| IDR | Indonesian Rupiah | | | | Details |
| IRR | Iranian Rial | | | | Details |
| IQD | Iraqi Dinar | | | | Details |
| ILS | Israeli New Shekel | | | | Details |
| NIO | Nicaraguan Cordoba Oro | | | | Details |
| OFID | OPEC Fund for International Development | | | | Details |
| IFAD | International Fund for Agricultural Development | | | | Details |
| THSIP | Tubing Head Shut-in Pressure | | | | Details |
| THSIT | Tubing Head Shut-in Temperature | | | | Details |
| IPRs | Inflow Performance Curves | | | | Details |
| PHIE | effective porosi | | | | Details |
| PHIS | sonic porosity | | | | Details |
| PHIN | neutron porosity | | | | Details |
| PHID | density porosity | | | | Details |
| PHIT | total porosity | | | | Details |
| PHIN | neutron porosity | | | | Details |
| PHICL | clay corrected porosity | | | | Details |
| VSILT | volume of silt | | | | Details |
| ICIP | Initial Closed In Pressure | | | | Details |
| DIF | Dutch infrastructure fund | | | | Details |
| IOTC | Iran Oil Terminals Company | | | | Details |
| NIOPDC | National Iranian Oil Products Distribution Company | | | | Details |
| API | Application Programing Interface | | | | Details |
| WINJ | Water Injection | | | | Details |
| OILP | Oil Producer | | | | Details |
| il | Info Line | | | | Details |
| ini | Setup File | | | | Details |
| inj | Injection Data | | | | Details |
| min | Minute Data | | | | Details |
| IAT | Induction Array Tool | | | | Details |
| DIC | Dissolved Inorganic Carbon | | | | Details |
| IRC | Internal Reserves Committee | | | | Details |
| HSTI | High Speed Telemetry interface | | | | Details |
| ILF | In-Line Flowmeter | | | | Details |
| ID | Innen-durch-messer | Inside Diameter | | | Details |
| JICA | Japan International Cooperation Agency | | | | Details |
| PIN | Personnal Identifikation Number | | | | Details |
| Bleiabdruck | Impression Block | Impression Block | | | Details |
| LI | Liquidationen | Plug & Abandon the well | | | Details |
| GRI | Gross Rate Increase | | | | Details |
| IEU | Internal-External Upset | | | | Details |
| IO | Integrated Operations | | | | Details |
| ID | Injection rate Decrease | | | | Details |
| ID | Injection Decrease | | | | Details |
| STIM | Stimulation | | | | Details |
| SIM | Simulation | | | | Details |
| IH | Injector Head | | | | Details |
| TID | Target Injection Differential | | | | Details |
| TRI | Target Rate Increase | | | | Details |
| IGR | Improved Gas Recovery | | | | Details |
| IRD | Injection Rate Decrease | | | | Details |
| IRI | Injection Rate Increase | | | | Details |
| ID | Injection Rate Decrease | | | | Details |
| II | Injection Rate Increase | | | | Details |
| INT | International | | | | Details |
| HCI | Human Capital Index | | | | Details |
| MIP | Medium Term Planning | | | | Details |
| Gewinnungsfeld | License to produce | | | | Details |
| Förderzins | Production tax | | | | Details |
| FGIP | Field Gas In Place | | | | Details |
| WCI | Water Cut Increased | | | | Details |
| ORI | Oil Rate Increase | | | | Details |
| WRI | Water Rate Increase | | | | Details |
| FIPNUM | Fluid In Place (Region Number) in ECLIPSE | | | | Details |
| PIP | Parameter Input Panel | | | | Details |
| I.B. | Im Betrieb | up & operational, functioning | | | Details |
| I.B | Im Betrieb | up & operational, functioning | | | Details |
| IB | Im Betrieb | up & operational, functioning | | | Details |
| IPC | Integrated Petroleum Contact | | | | Details |
| Schnittteufe | Cut window depth | | | | Details |
| VLI | Vintage Log Interpretation | | | | Details |
| ID | Injection Day | | | | Details |
| ILS | Improved Lateral Sweep | | | | Details |
| Attic | Attic oil | | | | Details |
| IAS | Improve Areal Sweep | | | | Details |
| A-Oil | Asphaltic Oil | | | | Details |
| A Oil | Asphaltic Oil | | | | Details |
| P-Oil | Paraphinic Oil | | | | Details |
| P Oil | Paraphinic Oil | | | | Details |
| HPMI | High Pressure Mercury Injection | | | | Details |
| IDOF | Intelligent Digital Oil Field | | | | Details |
| ROIP | Remaining oil in place | | | | Details |
| HI | Heterogeneity index | | | | Details |
| IC | Infinite Conductivity | | | | Details |
| AAI | Absolute Acoustic Impedance | Absolute Acoustic Impedance | Absolute akustische Impedanz | Impédance acoustique absolue | Details |
| AAIOR | annualized average incremental oil rate | annualized average incremental oil rate | annualisierten durchschnittlichen zusätzlichen Ölrate | taux moyen annualisé de pétrole supplémentaire | Details |
| ABOI | Assn. of British Oceanic Industries UK | Assn. of British Oceanic Industries UK | Assn. British Oceanic Industries UK | Assoc. de la Colombie-Oceanic Industries UK | Details |
| abrsi | jet abrasive jet | jet abrasive jet | Strahlmittelstrahl | jet jet abrasif | Details |
| SRI | Sustainable and Responsible Investment | | | | Details |
| SRIs | Social Responsible Investors | | | | Details |
| SRI | Social Responsible Investor | | | | Details |
| LTIP | Long Term Incentive Plan | | | | Details |
| SIP | Strategic Incentive Plan | | | | 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 |
| WGIT | Well Gas Injection Total | | | | Details |
| FGIT | Field Gas Injection Total | | | | Details |
| WWIT | Well Water Injection Total | | | | Details |
| FWIT | Field Water Injection Total | | | | Details |
| RTIT | Region Tracer Injection Total | | | | Details |
| ROIP | Region Oil In Place | | | | Details |
| BAPI | Block API | | | | Details |
| IST | Aktuell | Actual & up to date | | | Details |
| IAP | Integrated Activity Planning | | | | Details |
| IAM | Integrated Asset Models | | | | Details |
| IPA | Integrated Process Automation | | | | Details |
| FFYI | Forwarded For Your Information | | | | Details |
| MIP | Male Iron Pipe | | | | Details |
| FIP | Female Iron Pipe | | | | Details |
| IPT | Iron Pipe Thread | | | | Details |
| BULI | Bulimina (teil von Baden) (Geological formation in Austria) | Part of Baden Fm in Austria | | | Details |
| IBN | In Betrieb Nahme | to put in production | | | Details |
| PTIL | Petroleum Safety Authority in Norway | | | | Details |
| IP | International Petroleum | | | | Details |
| IP week | International Petroleum week | | | | Details |
| DDI | Depletion Drive Index | | | | Details |
| SDI | Segregation Drive Index | | | | Details |
| WDI | Water Drive Index | | | | Details |
| PIR | Profit to Investment Ratio | | | | Details |
| HI | Harmonic Isolation | | | | Details |
| RGIP | Reservoir Gas In Place | | | | Details |
| IOWC | Initial Oil Water Contact | | | | Details |
| IGWC | Initial Gas Water Contact | | | | Details |
| IWOC | Initial Water Oil Contact | | | | Details |
| IWGC | Initial Water Gas Contact | | | | Details |
| WWI | Weekly Workplace Inspection | | | | Details |
| DFIT | Diagnostic Fracture Injection Test | | | | Details |
| IODP | Integrated Ocean Drilling Program | | | | Details |
| ISP | Inflatable Service Packer | | | | Details |
| PIP | Production Injection Packer | | | | Details |
| IPSC | Integrated Production System Capacity | | | | Details |
| PLI | Production Log Interpretation | | | | Details |
| Steigrohr | Tubing | Tubing | | | Details |
| Steigleitung | stand pipe on drilling rig, or Tubing in a well | Stand pipe or tubing | | | Details |
| CDI | Connate Water Compressibility Index | | | | Details |
| SPIEF | St. Petersburg International Economic Forum | | | | Details |
| TRIS | Travel Risk Intelligence Service platform | | | | Details |
| IWDC | Initial Well Design Criteria | | | | Details |
| MIT | Modified Isochronal Test | | | | Details |
| SWIFT | Structured What-If Technique | | | | Details |
| SIPP | Schlumberger Injury Prevention Program | | | | Details |
| SIMOP | Simultaneous Operation | | | | Details |
| IFOT | Injection Fall Off Test | | | | Details |
| DMAIC | Define, Measure, Analyze, Improve | | | | Details |
| KPIS | Key Performance Indicators | | | | Details |
| FDI | Formation Damage Index | | | | Details |
| M&I | Management and Information | | | | Details |
| M & I | Management and Information | | | | Details |
| IFO | Intermediate fuel oil | | | | Details |
| C&I | Control & Instrumentation | | | | Details |
| SIL | Subsea Intervention Lubricator | | | | Details |
| IOGP | International Association of Oil and Gas Producers | | | | Details |
| eia | environmental impact assessment | | | | Details |
| PIIP | Petroleum Initially-In-Place | | | | Details |
| AIBN | Norwegian Accident Investigation Board | | | | Details |
| bbl/d.psi | GeoFrame legacy unit | | | | Details |
| %/IN | percent per inch | | | | Details |
| %/in | percent per inch | | | | Details |
| (c/s)/(ft/min) | (cycle per second) per (foot per minute) | | | | Details |
| (c/s)/(m/min) | (cycle per second) per (meter per minute) | | | | Details |
| (MSCF/d)/ft/psi | GeoFrame legacy unit | | | | Details |
| (MSCF/d)/psi | GeoFrame legacy unit | | | | Details |
| (rev/s)/(ft/min) | GeoFrame legacy unit | | | | Details |
| (rev/s)/(m/min) | GeoFrame legacy unit | | | | Details |
| (STB/d)/ft/psi | GeoFrame legacy unit | | | | Details |
| (STB/d)/psi | GeoFrame legacy unit | | | | Details |
| in | thousandth inch | | | | Details |
| psi/ft | psi per thousand feet | | | | Details |
| in | tenth inch | | | | Details |
| 1/32 in | 32nd inch | | | | Details |
| 1/64 in | 64th inch | | | | Details |
| 1/in | inverse inch | | | | Details |
| 1/min | items per minute | | | | Details |
| 1/PSI | inverse psi | | | | Details |
| 1/psi | inverse psi | | | | Details |
| 1/upsi | inverse micro pound per square inch | | | | Details |
| bbl/(d.ft.psi) | barrel per day per foot per (pound per square inch) | | | | Details |
| bbl/(d.psi) | barrel per day per (pound per square inch) | | | | Details |
| bbl/d.ft.psi | GeoFrame legacy unit | | | | Details |
| bbl/min | barrel per minute | | | | Details |
| BBL/PSI | barrel per (pound per square inch) | | | | Details |
| bbl/psi | barrel per (pound per square inch) | | | | Details |
| BPSI | barrel per (pound per square inch) | | | | Details |
| c.min/(s.ft) | (revolution per second) per (foot per minute) | | | | Details |
| c.min/(s.m) | (revolution per second) per (meter per minute) | | | | Details |
| c/min | revolution per minute | | | | Details |
| CENTIMETER | centimeter | | | | Details |
| CENTIMETERS | centimeter | | | | Details |
| CENTIMETRE | centimeter | | | | Details |
| CENTIMETRES | centimeter | | | | Details |
| Ci | curie | | | | Details |
| cm3/min | cubic centimeter per minute | | | | Details |
| DAPI | API gravity | | | | Details |
| dAPI | API gravity | | | | Details |
| degC/min | degree celsius per minute | | | | Details |
| degF/min | degree fahrenheit per minute | | | | Details |
| degF/psi | degree fahrenheit per pound per square inch | | | | Details |
| FDPI | cubic foot per day per foot per (pound per square inch) | | | | Details |
| FIM | Finnish markka | | | | Details |
| ft/min | foot per minute | | | | Details |
| ft/psi | foot per psi | | | | Details |
| ft3/(d.ft.psi) | cubic foot per day per foot per (pound per square inch) | | | | Details |
| ft3/d.ft.psi | GeoFrame legacy unit | | | | Details |
| ft3/min | cubic foot per minute | | | | Details |
| gal/min | gallon per minute | | | | Details |
| GAPI | API gamma ray | | | | Details |
| gAPI | API gamma ray | | | | Details |
| GIP | Gibraltar pound | | | | Details |
| gravit | acceleration due to earth gravity | | | | Details |
| hp/in2 | horsepower per square inch | | | | Details |
| HPSI | horsepower per square inch | | | | Details |
| I/32 | 32nd inch | | | | Details |
| IBAR | inverse bar | | | | Details |
| ICF | inverse cubic foot | | | | Details |
| ICM | inverse cubic meter | | | | Details |
| IEP | Irish pound | | | | Details |
| ILS | Israeli shekel | | | | Details |
| in. | inch (GeoFrame legacy unit) | | | | Details |
| in./s | GeoFrame legacy unit | | | | Details |
| in.2 | GeoFrame legacy unit | | | | Details |
| in.lbf | inch-pound force | | | | Details |
| in/a | inch per year | | | | Details |
| IN/M | inch per minute | | | | Details |
| IN/S | inch per second | | | | Details |
| in/s | inch per second | | | | Details |
| IN/Y | inch per year | | | | Details |
| IN-1 | inverse inch | | | | Details |
| IN2 | square inch | | | | Details |
| in2 | square inch | | | | Details |
| in2/s | square inch per second | | | | Details |
| in3 | cubic inch | | | | Details |
| INCHES | inch | | | | Details |
| inUS | inch (U.S. survey) | | | | Details |
| IRR | Iranian rial | | | | Details |
| ITL | Italian lira | | | | Details |
| IUPS | inverse micro pound per square inch | | | | Details |
| kg/min | kilogram per minute | | | | Details |
| KILOGRAM | kilogram | | | | Details |
| KILOGRAMS | kilogram | | | | Details |
| KILOMETER | kilometer | | | | Details |
| KILOMETERS | kilometer | | | | Details |
| KILOMETRE | kilometer | | | | Details |
| KILOMETRES | kilometer | | | | Details |
| KKGI | thousand kilograms per inch | | | | Details |
| KLBI | thousand pounds mass per inch | | | | Details |
| kPa/min | kilopascal per minute | | | | Details |
| KPSI | thousand pounds per square inch | | | | Details |
| L/min | liter per minute | | | | Details |
| lbm/min | pound per minute | | | | Details |
| linkClarke | Link (Clarke) | | | | Details |
| LITER | liter | | | | Details |
| LITERS | liter | | | | Details |
| LITRE | liter | | | | Details |
| m/min | meter per minute | | | | Details |
| m3/(d.psi) | cubic meter per day per (pound per square inch) | | | | Details |
| m3/d.psi | GeoFrame legacy unit | | | | Details |
| m3/min | cubic meter per minute | | | | Details |
| m3/psi | cubic meter per (pound per square inch) | | | | Details |
| mCi | millicurie | | | | Details |
| Mg/in | thousand kilograms per inch | | | | Details |
| mi | mile (international) | | | | Details |
| mi/h | mile per hour | | | | Details |
| mi2 | square mile | | | | Details |
| mi3 | cubic mile | | | | Details |
| MICROSECOND | microsecond | | | | Details |
| MICROSECONDS | microsecond | | | | Details |
| MILE | mile | | | | Details |
| MILES | mile | | | | 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 |
| MILLISECOND | millisecond | | | | Details |
| MILLISECONDS | millisecond | | | | Details |
| MIN | minute | | | | Details |
| min | minute | | | | Details |
| min/ft | minute per foot | | | | Details |
| min/m | minute per meter | | | | Details |
| mina | minute (angle) | | | | Details |
| mins | minute | | | | Details |
| MINUTE | minute | | | | Details |
| MINUTES | minute | | | | Details |
| miUS | mile (U.S. survey) | | | | Details |
| Mpsi | million pounds per square inch | | | | Details |
| MPSI | cubic meter per (pound per square inch) | | | | Details |
| Mpsi2 | million pound per square inch squared | | | | Details |
| MSI | millisiemens | | | | Details |
| MWDAPI | API gamma ray | | | | Details |
| NAPI | API neutron | | | | Details |
| nAPI | API neutron | | | | Details |
| nautmi | nautical mile | | | | Details |
| nCi | nanocurie | | | | Details |
| NIC | Nicaraguan cordoba | | | | Details |
| oAPI | GeoFrame legacy unit | | | | Details |
| pCi | picocurie | | | | Details |
| pCi/g | picocurie per gram | | | | Details |
| PCIG | picocurie per gram | | | | Details |
| PEI | Peruvian inti | | | | Details |
| psi.ms | (pound per square inch)-millisecond | | | | Details |
| psi/ft | pound per square inch per foot | | | | Details |
| psi/h | pound per square inch per hour | | | | Details |
| psi/m | pound per square inch per meter | | | | Details |
| psi/min | psi per minute | | | | Details |
| psi-1 | inverse psi (GeoFrame legacy unit) | | | | Details |
| PSI2 | million pound per square inch squared | | | | Details |
| psi2 | pound per square inch squared | | | | Details |
| psi2/cP | psi squared per centipoise | | | | Details |
| psig | psi gauge | | | | Details |
| PSIG | pound per square inch (gauge) | | | | Details |
| PSIH | pound per square inch per hour | | | | Details |
| PSIM | pound per square inch per meter | | | | Details |
| RADIAN | radian | | | | Details |
| RADIANS | radian | | | | Details |
| rev/min | GeoFrame legacy unit | | | | Details |
| RPSI | micro inverse pound per square inch | | | | Details |
| SI/M | siemens per meter | | | | Details |
| SIEM | siemens | | | | Details |
| t/min | ton per minute | | | | Details |
| uA/in2 | microampere per square inch | | | | Details |
| UAI2 | microampere per square inch | | | | Details |
| uCi | microcurie | | | | Details |
| units | gas units | | | | Details |
| UPSI | micropound per square inch | | | | Details |
| upsi | micropound per square inch | | | | Details |
| upsi-1 | GeoFrame legacy unit | | | | Details |
| USGAL/MIN | gallon per minute | | | | Details |
| yardIndian | Yard (Indian) | | | | Details |
| CALI | Caliper | | | | Details |
| CIL | Conductivity Induction | | | | Details |
| CILB | Conductivity Induction Backup | | | | Details |
| CILD | Deep Induction Conductivity | | | | Details |
| DTMETRIC | Delta T Sonic in Meter | | | | Details |
| GR_IX | GR index = normalized 0-1 | | | | Details |
| HMIN | Resistivity high res. MINV | | | | Details |
| IGR | Isotope-GR | | | | Details |
| ILD | Resistivity Deep Induction | | | | Details |
| INV | Resistivity Inverse Lateral 18ft 8in | | | | Details |
| MINV | Resistivity Micro Inverse 1inx1in | | | | Details |
| NLIMNF | Neutron Porosity Near/Far (Limestone) | | | | Details |
| NPHI | Compensated neutron porosity | | | | Details |
| PHIE | Effective Porosity | | | | Details |
| RING | BH compens. LWD Ring Resistivity | | | | Details |
| SMIN | Synthetic Micro-Inverse Resistivity | | | | Details |
| SP_IX | Spontaneous Potential final Proseis SP_index 0-1 | | | | Details |
| SXWI | Non Clay Water Intergranular Water Saturation for the flushed Zone | | | | Details |
| CALI | Caliper | | | | Details |
| HMIN | HIP Micro Inverse Resistivity | | | | Details |
| NPHI | Neutron Porosity | | | | Details |
| RES_RING | Ring Resistivity | | | | Details |
| RMIC | Micro Resistivity | | | | Details |
| PHIE | Effective Porosity | | | | Details |
| PHIE_orig | | | | | Details |
| Phi_Den | | | | | Details |
| PHIT | Total Porosity_ includes all forms of porosity, including that occupied by bound fluids, and is independent of rock and fluid materials and of environmental effects | | | | Details |
| PHIE_CPX | Effective Porosity | | | | Details |
| PIGN | Effective Porosity, VISO, VPAR, and Bound Water Removed | | | | Details |
| SUWI | Non-Clay Water Intergranular Water Saturation for Undisturbed Zone | | | | Details |
| SXWI | Non Clay Water Intergranular Water Saturation for the flushed Zone | | | | Details |
| VILL | Volume of Illite (dry) Relative to Total Volume | | | | Details |
| VLIM | Volume of Limestone | | | | Details |
| VUOI | Volume of Oil in Undisturbed Zone | | | | Details |
| VXOI | Volume of Oil in Flushed Zone | | | | Details |
| 3PIP | Third Party Investment Process | | | | Details |
| EPCI | Engineering, Procurement, Construction, and Installation | | | | Details |
| EPIC Contract | Engineer, Procure, Install and Commission | | | | Details |
| FIST | Full Integrated Sand prediction Tool | | | | Details |
| GIIP | Gas Initialy In Place | | | | Details |
| HAZID | Hazard Identification | | | | Details |
| IM&T | Information Management and Technology | | | | Details |
| IPR | Independend Peer Review | | | | Details |
| IRPA | Individual Risk Per Annum (HSEQ) | | | | Details |
| ISIR | Individiual-Specific Individual Risk (HSEQ) | | | | Details |
| ITD | Itent to drill | | | | Details |
| IVMS | In-Vehicle Monitoring System | | | | Details |
| KPI | Key Performance Indicators | | | | Details |
| LSIR | Location-Specific Individual Risk (HSEQ) | | | | Details |
| LTI | Lost Time Injury (HSEQ) | | | | Details |
| MFI | Mature Field Initiative | | | | Details |
| P&ID | Piping and Instrumentation Diagram / Drawing | | | | Details |
| P&ID | Process and Instrumentation Diagramm | | | | Details |
| PIB | Project and Investement Budget | | | | Details |
| PIF | Put in Function | | | | Details |
| PIR | Project Implementation Review | | | | Details |
| RIH | Run Into Hole | | | | Details |
| VIP | Value Improvement Process | | | | Details |
| bioturb | bioturbated | | | | Details |
| bit | bituminous | | | | Details |
| dif | diffuse | | | | Details |
| dissem | disseminated | | | | Details |
| fis | fissile | | | | Details |
| i/p | inpart | | | | Details |
| incl | inclined | | | | Details |
| inclined | inclusious | | | | Details |
| incr | increasingly | | | | Details |
| ind | indurated | | | | Details |
| indist | indistinct | | | | Details |
| intbd | interbeded | | | | Details |
| interbed | interbeds | | | | Details |
| intgran | intgranular | | | | Details |
| intlam | interlaminations | | | | Details |
| intmed | intermediate | | | | Details |
| interafom | informational | | | | Details |
| intstit | interstitial | | | | Details |
| intxl | intercrystalline | | | | Details |
| invis | invisible | | | | Details |
| lithic | lithographic | | | | Details |
| mic | micro | | | | Details |
| micmica | micromicaceous | | | | Details |
| micxl | microcrystalline | | | | Details |
| rip | ripple | | | | Details |
| sid | siderite | | | | Details |
| sidc | sideritic | | | | Details |
| sil | siliceous | | | | Details |
| vein | vein | | | | Details |
| wi | with | | | | Details |
| CI | Corporate Identity | | | | Details |
| CI | Combustor Inspection | | | | Details |
| C-IMS | Central Integrated Management System | | | | Details |
| CISO | Chief Information Security Officer | | | | Details |
| DIMSPT | Data integration management system for Production Technology | | | | Details |
| DPI | Discounted Profitability Index | | | | Details |
| EBIT | Earnings Before Interests and Taxes | | | | Details |
| EBITD | Earnings before interest, tax and depreciation | | | | Details |
| EPIS | E&P Information System | | | | Details |
| FI | Financial Interest | | | | Details |
| FIFO | First In, First Out | | | | Details |
| FIRE | First Resource Estimates | | | | Details |
| FYI | For Your Interest / Information | | | | Details |
| HIPO | High Potential (Accident) | | | | Details |
| HOSYI | Head Office Stakeholder Synchronization Initiative | | | | Details |
| IAP | integrated activity planning | | | | Details |
| IASDEO | Identify, Assess, Select, define, Execute, Operate | | | | Details |
| IBN | Inbetriebnahme | | | | Details |
| IDM | Idea Management | | | | Details |
| idz | in diesem Zusammenhang / in diesem Zeitraum | | | | Details |
| IEA | Internationale Energieagentur | | | | Details |
| IGD | Integrated Graduate Development | | | | Details |
| IGIP | Initial Gas In Place | | | | Details |
| IGR | Independent Gate Review | | | | Details |
| IHC | Inhouse Consulting | | | | Details |
| IHCIP | Initial Hydrocarbons In Place | | | | Details |
| IHRDC | International Human Resource Development Corporation | | | | Details |
| IIP | Initially in Place | | | | Details |
| IM | Ideenmanagement / Idea Management | | | | Details |
| IM | Information Management | | | | Details |
| INM | Innovation Management | | | | Details |
| IOR | Increased Oil Recovery | | | | Details |
| IPA | Independent Project Analysis | | | | Details |
| IPMA | International Project Management Association | | | | Details |
| IPMS | Integrated Process Management System | | | | Details |
| ISP | Integrated Service Provider | | | | Details |
| ITIL | Information Technology Infrastructure Library | | | | Details |
| ITIS | IT Infrastructure | | | | Details |
| ITIV | IT Investment | | | | Details |
| ITOT | IT Operational Task | | | | Details |
| ITSM | IT Service Management | | | | Details |
| ITSP | IT Service Point | | | | Details |
| ITSVM | IT Sourcing & Vendor Management | | | | Details |
| LIP | Locked In Potential | | | | Details |
| LLI | Long Lead Item | | | | Details |
| LTI | Lost Time Index | | | | Details |
| LWDI | Lost Workday Injury | | | | Details |
| MIP | Management Information Planning | | | | Details |
| NIAT | Net income after tax | | | | Details |
| NICE | Needs, Interests, Concerns and Expectations | | | | Details |
| OIL | Opportunity Identification List | | | | Details |
| OIS | OMV International Services GmbH | | | | Details |
| OVIP | Original Volume in Place | | | | Details |
| P&ID | Piping and Instrumentation Design | | | | Details |
| PIMMS | Production Integration Management and Monitoring System | | | | Details |
| PIN | Project Initiation Note | | | | Details |
| PIO | Plan for Installation and Operation | | | | Details |
| PMI | Project Management Institute | | | | Details |
| PSI | Pounds per square inch (unit) | | | | Details |
| RACI | Responsible, Accountable, Consulted, Informed | | | | Details |
| RRIP | Remaining Recoverable in Place | | | | Details |
| RVIP | Initial Recoverable Volume in Place | | | | Details |
| RWI | Restricted Work Injury | | | | Details |
| SI | Shut-In | | | | Details |
| SIP | Shut-In Pressure | | | | Details |
| SONVIS | SonicVISION | | | | Details |
| TIC | Total external investment costs | | | | Details |
| TRI | Total Recordable Injuries | | | | Details |
| TRIR | Total Recordable Injuries Rate | | | | Details |
| UID | Umsatzsteuer Identifikationsnummer | | | | Details |
| UNICEF | United Nations International Children's Emergency Fund | | | | Details |
| VIP | value improving practice | | | | Details |
| VOSI | Vorstandssitzung | | | | Details |
| WebI | Web Intelligence | | | | Details |
| WI | Business Objects Web Intelligence | | | | Details |
| BTI | Big Ticket Item | | | | Details |
| CIIP | Condensate Initially In Place | | | | Details |
| EI | Employee Information | | | | Details |
| EPIS | Exploration & Production Issues & Strategy | | | | Details |
| FIG | Formation intake gradient | | | | Details |
| FIS | Financial Information System | | | | Details |
| GIST | Global Information Sharing & Teamworking | | | | Details |
| HIA | Health Impact Assessment | | | | Details |
| IAP | Integrated Audit Plan | | | | Details |
| IBA | Integrated Business Applications | | | | Details |
| IBV | Intrinsic Business Value | | | | Details |
| ILT | Invisible Lost Time | | | | Details |
| IPP | Integrated Planning Process | | | | Details |
| IRIS | Incident Reporting Information System | | | | Details |
| ISG | Infrastructure Steering Group | | | | Details |
| Kips | kilo pounds | | | | Details |
| KOIV | Knock Out Isolation valve Made of ceramic and therefore, you can knock it out to activate. Opposite of a BPV | | | | Details |
| LIB | Impression tool (Lead Impression Block) | | | | Details |
| Lo/Hi-vis | Low and High Viscous mud used in conjunction with sea water in order to lift cuttings up to surface | | | | Details |
| LOI | Letter of Intent | | | | Details |
| MIR | Management Information Report | | | | Details |
| MIS | Management Information System | | | | Details |
| NIAT | Net Income After Tax | | | | Details |
| OIM | Offshore/Onshore Installation Manager | | | | Details |
| OIW | Oil-in-Water | | | | Details |
| PI | Performance Indicator | | | | Details |
| PMI | Portfolio Management Integration | | | | Details |
| POIF | Potential Occupational Incident Frequency | | | | Details |
| PSIF | Potential Serious Incident Frequency | | | | Details |
| RCI | Reservoir Characterisation Instrument | | | | Details |
| RIM | Records & Information Management | | | | Details |
| SDI | Surface Data Integration | | | | Details |
| SGIIP | Soluble Gas Initially In Place | | | | Details |
| SIV | Site Inspection Visit | | | | Details |
| SSDI | Sub-Surface Data Integration | | | | Details |
| SSIV | Sub-Sea Isolation valve | | | | Details |
| TROIF | Total Recordable Occupational Illness Frequency | | | | Details |
| BUSI | Business | | | | Details |
| CIA | Certified Internal Auditor | | | | Details |
| CIF | Cost Insurance With Freight | | | | Details |
| CIMA | Chartered Institute of Management Accountants | | | | Details |
| CIO | Chief Information Officer or Chief Investment Officer | | | | Details |
| CISA | Certified Information Systems Auditor | | | | Details |
| CPI | Consumer Price Index | | | | Details |
| CSI | Continual Service Improvement | | | | Details |
| DI | Dispatch information | | | | Details |
| Dir | Director | | | | Details |
| EBITA | Earnings before interest and taxes and amortization | | | | Details |
| EBITDA | Earnings before Interest, Taxes, Depreciation, and Amortization | | | | Details |
| EDI | Electronic Data Interchange | | | | Details |
| EMI | Equated Monthly Installment | | | | Details |
| FIFO | First In, First Out | | | | Details |
| FinMin | Finance Minister | | | | Details |
| Fin Min | Finance Minister | | | | Details |
| FIX | Financial Information Exchange | | | | Details |
| GRNI | Goods Receipt Not Invoiced | | | | Details |
| GMROII | Gross Margin Return on Inventory Investment | | | | Details |
| IAS | International Accounting Standards | | | | Details |
| ICB | Industry Classification Benchmark | | | | Details |
| ICRM | Innovative Customer Relationship Management | | | | Details |
| IE | Interest expense | | | | Details |
| IFRS | International Financial Reporting Standard | | | | Details |
| ILCLP | IdentLogic Systems Customer Loyalty Program | | | | Details |
| IMP | Import | | | | Details |
| Inc | Incorporated | | | | Details |
| IR | Interest Rate typically referring to an IR derivative product | | | | Details |
| ISIN | International Securities Identification Number | | | | Details |
| ISM | Institute of Supply Management | | | | Details |
| IYR | In Year Revenue | | | | Details |
| JIT | Just in time | | | | Details |
| JIS | Just in sequence | | | | Details |
| KIBOR | Karachi Interbank Offered Rate | | | | Details |
| LIBOR | London Interbank Offered Rate | | | | Details |
| LIFFE | London International Financial Futures and Options Exchange | | | | Details |
| LIFO | Last In, First Out | | | | Details |
| MIC | Market Identifier Code | | | | Details |
| NII | Net Interest Income | | | | Details |
| NIM | Net Interest Margin | | | | Details |
| NOI | Net Operating Income | | | | Details |
| OIBDA | Operating Income Before Depreciation And Amortization | | | | Details |
| PI | Professional Indemnity (insurance coverage) | | | | Details |
| pip | Percentage in point | | | | Details |
| RBI | Reserve Bank of India | | | | Details |
| ROIC | Return on Invested Capital | | | | Details |
| SEBI | Securities and Exchange Board of India | | | | Details |
| SIR | Stores Issuance Requisition | | | | Details |
| SIOP | Sales Inventory and Operations Plan | | | | Details |
| SIV | Structured investment vehicle | | | | Details |
| SROI | Social return on investment | | | | Details |
| WIGs | Wildly Important Goals | | | | Details |
