| E | Exploration | | | | Details |
| E | Excellent | | | | Details |
| E | Experimental | | | | Details |
| E | east | | | | Details |
| E | exploratory | | | | Details |
| E | elektr. PTE 85 MG (ausgesch.) | | | | Details |
| E | Environment | | | | Details |
| E | Engineering | | | | Details |
| FOE | Fred Olsen Energy|| | Fred Olsen Energy | Fred Olsen Energie | Fred Olsen Energy | Details |
| CEO | Chief Executive Officer|| | Chief Executive Officer | Geschäftsführer | Directeur Général | Details |
| rep | representative|| | representative | Vertreter | représentant | Details |
| Bleiabdruck | Impression Block|| | impression block | Eindruck Block | bloc d'impression | Details |
| BEH | Behördenabteilung|| | authorities Division | Behörden Abteilung | Division autorités | Details |
| BET | Behandlungstechnik|| | treatment technology | Aufbereitungstechnik | La technologie de traitement | Details |
| ECT | Engineering, Completion & Testing|| | Engineering, Completion & Testing | Ingenieurwesen, Completion & Testing | Ingénierie, achèvement et d'essais | Details |
| PE | Production Engineering|| | Production Engineering | Fertigungstechnik | L'ingénierie de production | Details |
| GE | Generalbehandlungen|| | General treatments | Allgemeine Behandlungen | traitements généraux | Details |
| GEE | Generalbehandlungen Energize|| | General treatments Energize | Allgemeine Behandlungen Energize | traitements généraux Energize | Details |
| LAE | Laufende Behandlungen Energize|| | Ongoing treatments Energize | Laufende Behandlungen Energize | traitements en cours Energize | Details |
| IEU | Internal-External Upset|| | Internal-External Upset | Innen-Außen-Upset | Upset interne-externe | Details |
| Drrep | Druck Representativ|| | pressure Representative | Druck Vertreter | Représentant de pression | Details |
| recov | Recoverable|| | Recoverable | Behebbarer | récupérable | Details |
| DEC | Drilling Engineering Center|| | Drilling Engineering Center | Drilling Engineering Center | Drilling Engineering Center | Details |
| DEC | Drilling Engineering Coordinator|| | Drilling Engineering Coordinator | Bohrtechnik Coordinator | Coordonnateur de forage Ingénierie | Details |
| TE | Thermal Expansion|| | thermal expansion | Wärmeausdehnung | dilatation thermique | Details |
| CEF | Connecting Europe Facility|| | Connecting Europe Facility | Connecting Europe | L'interconnexion en Europe | Details |
| EGAS | Eigen Gas|| | own gas | eigene Gas | gaz propre | Details |
| E-gas | Eigen Gas|| | own gas | eigene Gas | gaz propre | Details |
| AECV | additional emergency control valve|| | additional emergency control valve | zusätzliche Notfall-Regelventil | soupape de commande d'urgence supplémentaire | Details |
| Pegel | Level|| | level | Ebene | niveau | Details |
| Egas | Eigen Gas|| | own gas | eigene Gas | gaz propre | Details |
| E-gas | Eigen Gas|| | own gas | eigene Gas | gaz propre | Details |
| 2CEX | 2-Arm Caliper Log (Extended Reach) | | | | Details |
| 3DEX | 3D Induction Logging Service | | | | Details |
| 4CEX | 4-Arm Caliper Log (Extended Reach) | | | | Details |
| AADE | American Association of Drilling Engineers | | | | Details |
| AAPEA | Australian Petroleum Production and Exploration Association | | | | Details |
| AbEx | Abandonment Expense | | | | Details |
| AC/CAL NEU | Acoustilog Caliper Neutron | | | | Details |
| AC/NUE | BHC Acoustilog Caliper Neutron | | | | Details |
| ACCEL | accelerometers | | | | Details |
| ACCESS | accessory, accessories | | | | Details |
| ACE | Acoustic Caliber Log | | | | Details |
| A-Cem | acoustic cement | | | | Details |
| ACHE | Air Cooled Heat Exchanger | | | | Details |
| ADE | Asphaltene Deposition Envelop | | | | Details |
| ADEP | Awaiting Development with Exploration Potential, referring to an asset | | | | Details |
| ADEPT | Adaptive Electromagnetic Propagation Log | | | | Details |
| ADESCO | Abu Dhabi Emergency Committee of Offshore Operators | | | | Details |
| ADIPEC | Abu Dhabi International Petroleum Conference | | | | Details |
| ADWEA | Abu Dhabi Water and Electricity Authority | | | | Details |
| AE | UNITED ARAB EMIRATES | | | | Details |
| AEC | Anion Exchange Capacity (see comment) | | | | Details |
| AEC | Abu Dhabi Engineering Center | | | | Details |
| AEC | Atomic Energy Commission | | | | Details |
| AECRB | Alberta Energy Conservation Resources Board | | | | Details |
| AED | Automated external defibrillator | | | | Details |
| AED | Arab Emirates Dirham | | | | Details |
| AEG | Association of Engineering Geologists | | | | Details |
| AEGPL | Assn. Europeenne des Gaz de Petrole Liquifies France | | | | Details |
| AEI | Advanced Energy Initiative | | | | Details |
| AEO | Annual Energy Outlook, EIA | | | | Details |
| AEPL | Albario Engineering (Pvt) Ltd | | | | Details |
| AER | Alberta Energy Regulator | | | | Details |
| AER | aeration, aerator | | | | Details |
| AESF | Applied Energy Studies Foundation | | | | Details |
| AESP | Association of Energy Services Companies | | | | Details |
| AEUB | Alberta Energy & Utility Board | | | | Details |
| AFE | Authorization for Expenditure, a process of submitting a business proposal to investors | | | | Details |
| AFE | Authorization for Expenditure | | | | Details |
| AFESD | Arab Fund for Economic and Social Development | | | | Details |
| Agate | siliceous rock with alternating bands of chalcedony and colored chert | | | | Details |
| AHERA | Asbestos Hazard Emergency Response Act of 1986 (Title II of TSCA) | | | | Details |
| AICHE | American Institute of Chemical Engineers | | | | Details |
| AIME | American Institute of Mining, Metallurgical and Petroleum Engineers | | | | Details |
| AIRRE | Airgun Report | | | | Details |
| ALBPETROL | Albanian Petroleum Corporation Albania | | | | Details |
| ALEPCO | Ste. Algero-Arab-Libyenne d’Exploitation et de Production des Produits Petroliers Algeria | | | | Details |
| aMDEA | activated methyldiethanolamine | | | | Details |
| AMEP | African Middle East Petroleum Company | | | | Details |
| Amex | American Express Bank | | | | Details |
| ANARE | Analysis Report | | | | Details |
| Anode | the positively charged site in a cell Oxidation site The site of metal loss in corrosion | | | | Details |
| anode | Corrosion prevention device | | | | Details |
| APE | area petroleum engineer | | | | Details |
| APE | authorization for expenditure | | | | Details |
| APEC | Asia Pacific Economic Cooperation Forum | | | | Details |
| APEGA | Association of Professional Engineers and Geoscientists of Alberta | | | | Details |
| APEGGA | Association of Professional Engineers, Geologists and Geophysicists of Alberta | | | | Details |
| APPEA | Australian Petroleum Production & Exploration Assn. Australia | | | | Details |
| APPRE | Appraisal Report | | | | Details |
| Archeo | Archeozoic | | | | Details |
| ARE | UNITED ARAB EMIRATES | | | | Details |
| aren | arenaceous | | | | Details |
| ARESV | Analysis of Reservoir | | | | Details |
| ARPEL | Assistencia Reciproca Petrolera Empresarial Latinoamerica Regional Assn. of Oil & Natural Gas Cos. in Latin America and the Caribbean)(—) | | | | Details |
| ASCE | American Society of Civil Engineers | | | | Details |
| ASEAN | Association of Southeast Asian Nations | | | | Details |
| ASEG | Australian Society of Exploration Geophysicists Australia | | | | Details |
| ASESA | Asfaltes Espanoles S.A. Spain | | | | Details |
| ASHRAE | American Society of Heating, Refrigerating and Air-Conditioning Engineers | | | | Details |
| ASHRAE | American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc. | | | | Details |
| ASLE | American Society of Lubricating Engineers | | | | Details |
| ASME | American Society of Mechanical Engineers | | | | Details |
| ASSE | American Society of Safety Engineers | | | | Details |
| ATCE | Annual Technical Conference and Exhibition | | | | Details |
| AZE | AZERBAIJAN | | | | Details |
| B.E. | beveled end | | | | Details |
| B/VESS | bulk vessel | | | | Details |
| BADEA | Arab Bank for Economic Development in Africa | | | | Details |
| BAe | British Aerospace | | | | Details |
| Bapetco | Badr al-Din Petroleum Company | | | | Details |
| BAPETCO | Badr El Deen Petroleum Co. Egypt | | | | Details |
| BAPEX | Bangladesh Petroleum Exploration Company Ltd. Bangladesh | | | | Details |
| Barge | marine vessel without its own propulsion | | | | Details |
| base | basement(granite) | | | | Details |
| Bate | Bateman | | | | Details |
| Batelco | Bahrain Telecommunications Co. | | | | Details |
| BBE | bevel both ends | | | | Details |
| BBME | British Bank of the Middle East | | | | Details |
| Bcfe | billion cubic feet (of natural gas equivalent) | | | | Details |
| BE | Both Ends ( Load and discharge ports) | | | | Details |
| BE | BELGIUM | | | | Details |
| Be | beryllium | | | | Details |
| Be | Baumé | | | | Details |
| Be | Berea | | | | Details |
| be | box end | | | | Details |
| Bean | a flow restriction common in downhole chokes, surface chokes and some SSSVs | | | | Details |
| Bear | Riv Bear River | | | | Details |
| BEC | Bid Evaluation Criteria | | | | Details |
| bec | becoming | | | | Details |
| Beck | Beckwith | | | | Details |
| BEG | BEGinning | | | | Details |
| BEI | Biological Exposure Index | | | | Details |
| BEL | BELGIUM | | | | Details |
| Bel | Beldon | | | | Details |
| Bel-C | Belle City | | | | Details |
| Bel-F | Belle Fourche | | | | Details |
| Belm | belemnites | | | | Details |
| BEN | BENIN | | | | Details |
| Ben | Benoist(Bethel) sand | | | | Details |
| Ben | Benton | | | | Details |
| BENDS | Both Ends ( Load and discharge ports) | | | | Details |
| bent | bentonite (itic) | | | | Details |
| Bent | bentonite | | | | Details |
| BEP | Best Efficient Point (ESP related) | | | | Details |
| BEP | Break Even Point | | | | Details |
| BERL | Boral Energy Resources Ltd. Australia | | | | Details |
| berm | berm, sloped wall to keep out flooding | | | | Details |
| BFE | base flange elevation | | | | Details |
| BGEPIL | British Gas Exploration and Production (India) Limited | | | | Details |
| BHSRE | Bottom Hole Sampling Report | | | | Details |
| BIORE | Biostratigraphy Study Report | | | | Details |
| BKME | Bank of Kuwait and the Middle East | | | | Details |
| BLE | bevel large end | | | | Details |
| bledg | bleeding | | | | Details |
| BLUE | Best Linear Unbiased Estimator | | | | Details |
| BMCE | Banque Marocaine du Commerce Extérieure | | | | Details |
| BMEP | brake mean effective pressure | | | | Details |
| BNDE | Banque Nationale pour le Développement Economique | | | | Details |
| BNPE | Bureau de Normalisation du Petrole France | | | | Details |
| boe | barrel(s) of oil equivalent | | | | Details |
| BOE | Barrels of oil equivalent | | | | Details |
| BOE | barrels of oil equivalent A method of equating the energy produced by a hydrocarbon gas to a standard oil measurement One barrel of oil has about the same heat producing capacity as 6,000 ft3 of gas at standard conditions | | | | Details |
| BOE | bevel one end | | | | Details |
| BOE | blowout equipment | | | | Details |
| boed | barrel(s) of oil equivalent per day | | | | Details |
| BOEM | Bureau of Ocean Energy Management, DOI | | | | Details |
| BOEMRE | Bureau of Ocean Energy Management, Regulation and Enforcement | | | | Details |
| BOEMRE | Bureau of Ocean Energy Management, Regulation and Enforcement, DOI | | | | Details |
| boepd | barrel(s) of oil equivalent per day | | | | Details |
| Bonne | Bonneterre | | | | Details |
| BOPE | blowout preventer equipment | | | | Details |
| BOPEC | Bonaire Petroleum Corporation Neth. Antilles | | | | Details |
| BOREH | Borehole Seismic Analysis | | | | Details |
| Borouge | Abu Dhabi Polymers Company Limited | | | | Details |
| BOSIET | Basic Safety Induction & Emergency Training (see comment) | | | | Details |
| BOSIET | Basic Offshore Safety Induction and Emergency Training | | | | Details |
| BPEO | Best Practicable Environmental Option | | | | Details |
| BRASPETRO | Petrobras Internacional S.A. Brazil | | | | Details |
| brec | breccia | | | | Details |
| BSE | bevel small end | | | | Details |
| BSEE | US: Bureau of Safety and Environmental Enforcement (Formerly the MMS) | | | | Details |
| BSEE | Bureau of Safety and Environmental Enforcement, DOI | | | | Details |
| BTEX | Benzene, Toluene, Ethyl Benzene and Xylene | | | | Details |
| Bul.text. | Buliminella textularia | | | | Details |
| BuMInes | Bureau of Mines, U.S. Department of the Interior | | | | Details |
| BYTE | 8 bits | | | | Details |
| C to E | center to end | | | | Details |
| C&E | Well completion and equipment cost | | | | Details |
| Cable | one of various braided cables, with or without isolated conductance wires, used for well operations | | | | Details |
| CADE | Canadian Association of Drilling Engineers | | | | Details |
| CAFE | Corporate Average Fuel Economy | | | | Details |
| cale | calceneous | | | | Details |
| CALTEX | Various affiliates of Texaco Inc, and Chevron Corp. partnership — | | | | Details |
| CALVE | Calibrated Velocity Log Data | | | | Details |
| CAMEL | Companie Algerienne du Methane Liquide France/Algeria | | | | Details |
| Cane | Riv Cane River | | | | Details |
| CAPEX | Capital Expenditure | | | | Details |
| CARBESA | Carbon Black Espanola S.A. Spain | | | | Details |
| CASE | Computer-aided Software Engineering | | | | Details |
| CATe | Core Asset Team | | | | Details |
| CBE | Commercial Bid Evaluation | | | | Details |
| CBL/GR/NEU | Acoustic Cement Bond G/R Neutron | | | | Details |
| CBL/NEU | Acoustic Cement Bond Neutron | | | | Details |
| CCE | Constant Composition Expansion (type of PVT analysis) | | | | Details |
| CCE | Constant Composition Expansion | | | | Details |
| CCEA | Cabinet Committee on Economic Affairs | | | | Details |
| CDPNE | College Degree Program for Non-Employees | | | | Details |
| CE | Civil Engineer | | | | Details |
| CE | Completion Engineer | | | | Details |
| CE | Corrosion Engineer | | | | Details |
| CE | Carottage Electric log (SP + Deep resistivity) or Cable Electric Log (name for wireline logging in French) | | | | Details |
| CE | OMV-Standard Bohrlochmessung (carottage electric) | | | | Details |
| CE | SRI LANKA | | | | Details |
| CE | completions engineer | | | | Details |
| ce Ta | Center Tank | | | | Details |
| CEC | Cement Casing | | | | Details |
| CEC | Cation Exchange Capacity (see comment) | | | | Details |
| CEC | Cation Exchange Capacity | | | | Details |
| CECAN | CEC Analysis | | | | Details |
| CEDIPSA | Compania Espanola Distribuidora de Petroleos S.A. Spain | | | | Details |
| CEE | Central and Eastern Europe | | | | Details |
| CEHL | Cain Energy Hydrocarbons Limited | | | | Details |
| CEIL | Cairn Energy India Limited | | | | Details |
| CEL | cement evaluation log | | | | Details |
| CEL | Cement Evaluation | | | | Details |
| cell | cellar | | | | Details |
| cell | cellular | | | | Details |
| CEM | Cementing Run | | | | Details |
| CEM | Cement(ed) | | | | Details |
| CEME | Cement Evaluation | | | | Details |
| CEMF | counter electromotive force | | | | Details |
| CEMS | continuous emission monitoring system | | | | Details |
| Ceno | Cenozoic | | | | Details |
| cent | centralizers | | | | Details |
| CentGas | Central Asia Gas Pipeline Ltd. | | | | Details |
| centr | centrifugal | | | | Details |
| CEP | Current Estimated Potential | | | | Details |
| CEP | Cement Plug | | | | Details |
| CEP&M | Comite d’Etudes Petrolieres et Marine France | | | | Details |
| CEPA | Canadian Energy Pipeline Association | | | | Details |
| CEPCO | City Ecuadoriana Production Co. Ecuador | | | | Details |
| CEPE | Corporacion Estatal de Petroleo Ecuatoriano Ecuador | | | | Details |
| ceph | cephalopod | | | | Details |
| CEPP | Chemical Emergency Preparedness Program | | | | Details |
| Cepsa | Compania Espanola de Petroleos | | | | Details |
| CEPSA | Compania Espanola de Petroleos, S.A. Spain | | | | Details |
| CEQ | council on environmental quality | | | | Details |
| CEQA | California Environmental Quality Act | | | | Details |
| CERA | Cambridge Energy Research Associates | | | | Details |
| CERCLA | a US Law – Comprehensive Environmental Response, Compensation and Liability Act of 1980 | | | | Details |
| CERCLA | Comprehensive Environmental Response, Compensation, and Liability Act (The Superfund Law) | | | | Details |
| CERE | Cement Remedial Log | | | | Details |
| CERHYD | Centre de Recherche Pour La Valorisation des Hydrocarbures & Derives Algeria | | | | Details |
| CERT | certified | | | | Details |
| Cert.ex. | Ceratobulimina eximia | | | | Details |
| CEST | Central European Summer Time | | | | Details |
| CET | Cement Evaluation Tool | | | | Details |
| CET | Central European Time | | | | Details |
| CET | cement evaluation | | | | Details |
| CET | Cement Evaluation Log | | | | Details |
| CEU | (Certificate of) Continuing Education Units | | | | Details |
| CEU | Continuing Education Units | | | | Details |
| CFE | core flow efficiency | | | | Details |
| CFE | contractor furnished equipment | | | | Details |
| CGEL | CG EL Log | | | | Details |
| CGES | Center for Global Energy Studies | | | | Details |
| CGES | Centre for Global Energy StudiesUK | | | | Details |
| CHE | Casing HAndling Equipment | | | | Details |
| CHE | SWITZERLAND | | | | Details |
| CHECK | Checkshot and Acoustic Calibration Report | | | | Details |
| Chem | Chemical | | | | Details |
| chem. | chemical, chemist, chemistry | | | | Details |
| chem. | prod chemical products | | | | Details |
| Cher | Cherokee | | | | Details |
| Chert | a hard, silicate sedimentary rock Similar to flint, but with less ordered structure A cryptocrystalline form of quartz | | | | Details |
| chert | chert | | | | Details |
| Ches | Chester | | | | Details |
| CHES | Basic | | | | Details |
| CHESM | contractor, health, environment and safety management | | | | Details |
| CHESS | chemical hazard employee safety system | | | | Details |
| chrome | chromium | | | | 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 |
| CIRES | Companhia Industrial de Resinas Sinteticas Portugal | | | | Details |
| Cleve | Cleveland | | | | Details |
| cm/sec | centimeters per second | | | | Details |
| CO2e | carbon dioxide equivalent | | | | Details |
| COCHIME | Companie Chimique de la Mediterranee France | | | | Details |
| CODEC | COder DECoder | | | | Details |
| CODESSAS | Cia. Operadora de Estaciones de Servicio S.A. de CV Mexico | | | | Details |
| COE | Center Of Excellence | | | | Details |
| COE | controllable operating expense | | | | Details |
| COE | Corps of Engineers | | | | Details |
| CoED | Chance of Economical Development | | | | Details |
| coef | coefficient | | | | Details |
| Cogec | Costieri Genovesi Petroliferi | | | | Details |
| Cole | Jct Coleman Junction | | | | Details |
| COLPET | Colombian Petroleum Co. Colombia | | | | Details |
| Com Den | Compensated Density | | | | Details |
| Com Den-GR | Compensated Density Gamma Ray | | | | Details |
| COMESA | Cie. Mexicana de Exploraciones S.A. Mexico | | | | Details |
| COMMEGO | Committee on Geology & Mineral Resources Bulgaria | | | | Details |
| COMRE | Completion Record Log | | | | Details |
| CONCAWE | Conservation of Clean Air and Water in Europe | | | | Details |
| CONCAWE | Oil companies’ European organization for environment, health and safety Belgium | | | | Details |
| CONDE | Condensate Analysis Report | | | | Details |
| COPAREX | Companie de Participations, de Recherches et d’Exploitations Petrolieres France | | | | Details |
| Cor Det | Electro-Magnetic Corrosion Detector | | | | Details |
| CORE | Core Report | | | | Details |
| correl | correlation, correlated | | | | Details |
| correl | correlation | | | | Details |
| corres | correspondence | | | | Details |
| CPECC | China Petroleum Engineering Construction Corporation | | | | Details |
| CPEL | Corrosion And Protection Evaluation Log | | | | Details |
| CPEMA | Concurrent Production Eng Maintenance Activities | | | | Details |
| CPET | Corrosion And Protection Evaluation Log | | | | Details |
| CPIRE | CPI Report | | | | Details |
| CRE | Comision Reguladora de Energia Mexico | | | | Details |
| cren | crenulated | | | | Details |
| CRET | Cement Retainer Setting Log | | | | Details |
| Cret | Cretaceous | | | | Details |
| CRET | Cement Retainer | | | | Details |
| CS - Filter | Con-Slot Filter | | | | Details |
| CSChE | Canadian Society or Chemical Engineering | | | | Details |
| CSE | Chemical Systems Engineering | | | | Details |
| CSE | Control Systems Engineering | | | | Details |
| cse | gr coarse grained | | | | Details |
| CSEG | Canadian Society of Exploration Geophysicist | | | | Details |
| CSEM | Controlled Source Electro-Magnetics | | | | Details |
| CSES | Casing Side Entry Sub | | | | Details |
| CSTRE | CST Report | | | | Details |
| CTDESP | coiled tubing deployed electric submersible pump | | | | Details |
| CTE | Center Technical Excellence | | | | Details |
| CTE | coefficient of thermal expansion | | | | Details |
| CTES | Coiled Tubing Engineering Services | | | | Details |
| CUPET | Commercial Cupet S.A. Cuba | | | | Details |
| CWE | cold water equivalent | | | | Details |
| CWE | Collaborative Work Environment | | | | Details |
| CWIE | Completion & Well Intervention Engineer | | | | Details |
| CZE | CZECH REPUBLIC | | | | Details |
| DBE | Detailed Budget Exercise | | | | Details |
| DCE | Direct Contract Employment | | | | Details |
| d-d-1-s-1-e | dressed dimension one side and one edge | | | | Details |
| DDET | Depth Determination Log | | | | Details |
| DE | Decision Executive | | | | Details |
| DE | Drilling Engineer | | | | Details |
| DE | Diatomaceous Earth | | | | Details |
| DE | DENMARK | | | | Details |
| DE | GERMANY | | | | Details |
| DE | Delaware | | | | Details |
| DE | double end | | | | Details |
| DEA | Drilling Engineering Association | | | | Details |
| DEA | diethanolamine | | | | Details |
| DEA | unit diethanolamine unit | | | | Details |
| DEA | Deutsche Erdol Aktiengesselschaft (see REW-DEA) Germany | | | | Details |
| Deadw | Deadwood | | | | Details |
| deaer | deaerator | | | | Details |
| deasph | deasphalting | | | | Details |
| debutzr | debutanizer | | | | Details |
| dec | decimal | | | | Details |
| DECC | Department for Energy and Climate Change (United Kingdom) | | | | Details |
| DECC | Department for Energy and Climate Change (UK) | | | | Details |
| decl | decline | | | | Details |
| DECON | Deconvolution | | | | Details |
| decr | decrease | | | | Details |
| decr | decrease(ed)(ing) | | | | Details |
| DECT | Decay Time | | | | Details |
| DeDet | Depth Setermination | | | | Details |
| deethzr | deethanizer | | | | Details |
| defl | deflection | | | | Details |
| DEFSU | Definitive Survey Report | | | | Details |
| DEFT | Digital Entry Fluid Imaging Tool in PLT/PSP Schlumberger (Water hold up tool) | | | | Details |
| deg | degree (s) | | | | Details |
| Deg | Degonia | | | | Details |
| deg | degree(s) | | | | Details |
| degc | Degree Celcius | | | | Details |
| DEGF | Degree Farenheight | | | | Details |
| DEIb | Diamond Enhanced Insert bit | | | | Details |
| deisobut | deisobutanizer | | | | Details |
| Del R | Del Rio | | | | Details |
| DEL2 | Dielectric Log - 200 Mhz | | | | Details |
| DEL2 | Dielectric Log- 200 MHz | | | | Details |
| DEL4 | Dielectric Log - 47 Mhz | | | | Details |
| DEL4 | Dielectric Log – 47 MHz | | | | Details |
| Dela | Delaware | | | | Details |
| DELEK | Delek the Israel Fuel Corp. Ltd. Israel | | | | Details |
| DELTA | Delta- Tlog | | | | Details |
| delv | delivery(ed)(ability) | | | | Details |
| delv | pt delivery point | | | | Details |
| DELY | DELiverY | | | | Details |
| DEM | Drilling Engineering Manual | | | | Details |
| DEM | DEMurrage | | | | Details |
| DEM | Digital Elevation Model | | | | Details |
| DEMINEX | DEMINEX GmbH Germany | | | | Details |
| demur | demurrage | | | | Details |
| DEN | Density Log | | | | Details |
| Den | Density | | | | Details |
| dend | dendrite(ic) | | | | Details |
| Den-G | Density Gamma Ray | | | | Details |
| DENL | Density | | | | Details |
| DENL | Density Log | | | | Details |
| DENR | Radioactive fluid density tool (in PLT tool) | | | | Details |
| Deoco | Deminex Egypt Company | | | | Details |
| DEP | Public Petroleum Corp. S.A. Greece | | | | Details |
| DEPA | Greek State Natural Gas Company Greece | | | | Details |
| DEPAN | Deposit Analysis Report | | | | Details |
| DEPC | Depth Control Log | | | | Details |
| depl | depletion | | | | Details |
| Depr | depreciation | | | | Details |
| deprop | depropanizer | | | | Details |
| dept | department | | | | Details |
| DEQ | Delivered Ex Quay | | | | Details |
| DERPROSA | Derivados del Propileno S.A. Spain | | | | Details |
| DES | Derrick Equipment Set | | | | Details |
| DES | Delivered Ex Ship | | | | Details |
| Des | Crk Desert Creek | | | | Details |
| Des M | Des Moines | | | | Details |
| desalt | deslater | | | | Details |
| desc | description | | | | Details |
| DESFL | Deep Induction SFL Log | | | | Details |
| desorb | desorbent | | | | Details |
| DESP | DESPatch | | | | Details |
| desulf | desulfurizer | | | | Details |
| det | detail(s) | | | | Details |
| det | detector | | | | Details |
| deterg | detergent | | | | Details |
| detr | detrital | | | | Details |
| DEU | GERMANY | | | | Details |
| DEUDAN | Deutsche/Danische Erdgastransport GmbH Germany/Denmark | | | | Details |
| DEUTAG | Deutsche Tiefbohr-AG Germany | | | | Details |
| DEV | Development Well, Lahee classification | | | | Details |
| dev | deviation | | | | Details |
| dev | deviate, deviation | | | | Details |
| Dev | Devonian | | | | Details |
| devel | develop (ed) (ment) | | | | Details |
| devel | develop(ed)(ment) | | | | Details |
| DEVLG | Deviation Log | | | | Details |
| Devt | Development | | | | Details |
| dewax | dewaxing | | | | Details |
| DEXP | D-Exponent Log | | | | Details |
| Dext | Dexter | | | | Details |
| DFE | Drill Floor Elevation | | | | Details |
| DFE (ACD) | Drill Floor Elevation (Admiralty Chart Datum) | | | | Details |
| DG-Packer | Double Grip Packer | | | | Details |
| Dgt Tp Rec | Digital Tape Recording | | | | Details |
| DHDATSBE | Despatch Half Demurrage on All Time Saved Both Ends | | | | Details |
| DHDWTSBE | Detpatch Half Demurrage on Working Time Saved Both Ends | | | | Details |
| DHE | Direct Hire Employment (Indefinite contract) | | | | 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 |
| DIGANAMEX | Distribuidora de Gas Natural del Estado de Mexico S.A. Mexico | | | | Details |
| Dip Rec | Dip Log Digital Log Dgt | | | | Details |
| DIPRE | Dipmeter Report | | | | Details |
| DISPESA | Compania Distribuidora de Productos Petroliferos S.A. Spain | | | | Details |
| DIT-E | Phasor Induction Log | | | | Details |
| DLE | Differential Liberation Equation (see comment - type of PVT analysis) | | | | Details |
| DOCREQ | Document request | | | | Details |
| DOE | Depends On Experience | | | | Details |
| DOE | Department of Energy, United States | | | | Details |
| DOE | Date of Engagement | | | | Details |
| DOE | US Department Of Energy | | | | Details |
| DOE | U.S. Department of Energy | | | | Details |
| DOE | Department of Energy | | | | Details |
| DOME | Dome | | | | Details |
| dope | Pipe coating | | | | Details |
| DOT-E | Designation Of Material Exempt from Department of Transportation regulations | | | | Details |
| DOWRE | Downhole Report | | | | Details |
| DPC SCE | Perforating-Ceramic | | | | Details |
| DPRES | Dual Propagation Resistivity Log | | | | Details |
| DrehT | Drehtisch | | | | Details |
| DrehT" | Drehtisch | | | | Details |
| dresser | Mechanical coupling used to join joints or lengths or pipe rather than threading or welding | | | | Details |
| DRREP | Drilling Report | | | | Details |
| DRYRE | Drying Report | | | | Details |
| DSE | Driling Specific Energy | | | | Details |
| DSTRE | Drill Stem Test Report | | | | Details |
| DUPETCO | Dubai Petroleum Co. Dubai | | | | Details |
| E of W/L | east of west line | | | | Details |
| E&A | Exploration and Appraisal | | | | Details |
| E&B | Lines Equalisation and Bleed Lines | | | | Details |
| E&D | Exploration & Development | | | | 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 |
| E&P | Exploration and Production | | | | Details |
| E&P-FORUM | Oil Industry Intenational Exploration & Production Forum UK | | | | Details |
| E.D. | effective depth | | | | Details |
| e.g. | for example | | | | Details |
| E.T.D | estimated total depth | | | | Details |
| E/2 | East half | | | | Details |
| E/4 | east quarter | | | | Details |
| E/BL | east boundary line | | | | Details |
| E/C | Equipment check | | | | Details |
| E/E | end to end | | | | Details |
| E/L | east line | | | | Details |
| E/O | east offset | | | | Details |
| E/W | East / West | | | | Details |
| E’ly | easterly | | | | Details |
| E0 | Unattended engine room | | | | Details |
| EA | Exploration Asset | | | | Details |
| EA | Environmental Assessment | | | | Details |
| ea | each | | | | Details |
| EAB | Egyptian American Bank | | | | Details |
| EAF | Employee Assessment Form | | | | Details |
| EAGC | European Autumn Gas Conference | | | | Details |
| EAGE | European Association of Geoscientists & Engineers | | | | Details |
| EAGE | European Assn. of Geoscientists & Engineers Netherlands | | | | Details |
| EAM | electric accounting machines | | | | Details |
| EAN | European Article Number | | | | Details |
| EAOC | Exxon Azerbaijan Operating Company | | | | Details |
| Earls | Earlsboro | | | | Details |
| Eau | Clr Eau Claire | | | | Details |
| EBG | Emirates Bank Group | | | | 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 |
| EBSF | Emirates Banking Stocks Fund | | | | Details |
| EBU | enhanced biodegradation unit | | | | Details |
| EC | European Commission | | | | Details |
| EC | East Coast | | | | Details |
| EC | Energy Component (company that built PIMMS) | | | | Details |
| EC | ECUADOR | | | | Details |
| EC | Essentiality Certificate | | | | Details |
| EC | European Commission (—) | | | | Details |
| ECA | Export Credit Agency | | | | Details |
| E-cat | equilibrium catalyst | | | | Details |
| ECATWW-L | Wireline department in GAE | | | | Details |
| ECB | Economic Commission Board | | | | Details |
| ECC | Emergency Control Center | | | | Details |
| ECC | eccentric | | | | Details |
| ECC | Tool Eccentricity Image Enhancement | | | | Details |
| ECCN | Export Control and Compliance Number | | | | Details |
| ECD | Equivalent Circulating Density | | | | Details |
| ECGD | Export Credits Guarantee Department | | | | Details |
| Ech | echinoid | | | | Details |
| ECL | Eclipse | | | | Details |
| ECM | East Cimarron Meridian(Oklahoma) | | | | Details |
| ECMOR | European Conference on the Mathematics of Oil Recovery | | | | Details |
| ECN | Netherlands Energy Research Foundation (Energieonderzoek Centrum Nederland) Netherlands | | | | Details |
| ECO | Ecoscope | | | | Details |
| Econ | economics, economy, economizer | | | | Details |
| ECOPETROL | Empresa Colombiana de Petroleos Colombia | | | | Details |
| ECoS | Economical Chance of Success | | | | Details |
| ECP | External Casing Packer | | | | Details |
| ECR | Emergency Command Room | | | | Details |
| ECR | Emergency Control Room | | | | Details |
| ECR | Employment Change Request | | | | Details |
| ECRD | Electrically Controlled Release Tool | | | | Details |
| ECS | Elemental Capture Spectroscopy Sonde | | | | Details |
| ECS | Elemental Capture Sonde | | | | Details |
| ECT | Engineering Completion & Test | | | | Details |
| Ect | Ector(County, TX) | | | | Details |
| ECTFE | thermoplastic fluoropolymer | | | | Details |
| eCTU | electric line coiled tubing unit | | | | Details |
| ECU | ECUADOR | | | | Details |
| ECUWAS | Economic Cummunity of West African States | | | | Details |
| ED | Experimental Design (statistical reservoir modelling analysis method) | | | | Details |
| Ed lm | Edwards lime | | | | Details |
| EDA | Exploratory Data Analysis | | | | Details |
| EDC | Egyption Drilling Company | | | | Details |
| EDC | Ethylene Dichloride | | | | Details |
| EDCTN(R) | education(tor) | | | | Details |
| EDD | expected date of delivery | | | | Details |
| EDF | Early Development Facilities | | | | Details |
| EDF | Electricité de France | | | | Details |
| EDG | Edge Detection | | | | Details |
| EDM | Engineering Data Management | | | | Details |
| EDMS | Electronic Document Management System | | | | Details |
| EDP | Exploration Drilling Program Report | | | | Details |
| EDP | Emergency Disconnect Package (Subsea tree) | | | | Details |
| EDP | Extended Draft Platform (Technip offshore platform design) | | | | Details |
| EDP | electronic data processing | | | | Details |
| EDR | Exploration Drilling Report | | | | Details |
| EDR | Electronic Drilling Recorder | | | | Details |
| EDRS | Electrical Drilling Report System | | | | Details |
| EDRS | Enhanced Drilling Reporting System (KCA DEUTAG) | | | | Details |
| EDS | Emergency Disconnection Sequence (usually in an offshore rig) | | | | Details |
| EDS | Emergency Disconnect Sequence (Offshore rig) | | | | Details |
| EDTA | Ethylene Diamine Tetraacetic Acid | | | | Details |
| EDTA | ethylene diamene tetra acetic acid | | | | Details |
| Educ | education | | | | Details |
| Edw | Edwards | | | | Details |
| EDZ | Extended Drilling Zone | | | | Details |
| EE | ESTONIA | | | | Details |
| EEA | Egyptian Electricity Authority | | | | Details |
| EEBA | Emergency Escape Breathing Apparatus | | | | Details |
| EEC | Eastern European Time | | | | Details |
| EEC | Energy Equity Corp. Ltd. Australia | | | | Details |
| EEF | Emirates Equity Fund | | | | Details |
| EEG | Erdgas Erdol Gommern Germany | | | | Details |
| EEJ | Enerjet Perforating | | | | Details |
| EEMUA | Engineering Equipment & Materials Users Assn. UK | | | | Details |
| EEP | Enterprise Excellence Process (weatherford abbreviation) | | | | Details |
| EEPAL | Exxon Exploration and Production Azerbaijan Limited | | | | Details |
| EEPROM | Electrically Erasable (user) Programmable Read-Only Memory | | | | Details |
| EEX | European Energy Exchange | | | | Details |
| EF | Equipment Failure | | | | Details |
| EF | environmental footprint | | | | Details |
| EF | Eagle Ford | | | | Details |
| EFC | Egyptian Fertilizers Company | | | | Details |
| EFF | Extended Fund Facility | | | | Details |
| eff | effective | | | | Details |
| eff | efficiency | | | | Details |
| effl | effluent | | | | Details |
| EFGI | EFG Index | | | | Details |
| EFIC | Egyptian Financial and Industrial Company | | | | Details |
| Efire | Electronic Firing Head | | | | Details |
| EFL | Electrical Flying Lead | | | | Details |
| EFR | Engineering Factual Report | | | | Details |
| EFR | external floating roof | | | | Details |
| EFST | Explosive-Free Shut-In Tool | | | | Details |
| EFTA | European Free Trade Association | | | | Details |
| EFV | equilibrium flash vaporization | | | | Details |
| eg | exempli gratia (for example) | | | | Details |
| EG | EGYPT | | | | Details |
| Egl | Eagle | | | | Details |
| EGLV | Electric Gas Lift Valve | | | | Details |
| Eglwd | Englewood | | | | Details |
| EGM | Electronic Gas Measurements | | | | Details |
| EGMBE | Ethylene Glycol Mono-Butyl Ether | | | | Details |
| EGMBE | ethylene glycol mono-butyl ether A mutual solvent | | | | Details |
| EGP | External Gravel Pack | | | | Details |
| EGPC | Egyptian General Petroleum Corporation | | | | Details |
| EGPC | Egyptian General Petroleum Corp. Egypt | | | | Details |
| EGSMA | Egyptian Geological Survey & Mining Authority Egypt | | | | Details |
| EGTA | Etudes et Grands Travaux de l’Atlantique France | | | | Details |
| EGTI | Egyptian German Telecommunications Industry | | | | Details |
| EGU | Enhanced Gas Utilization | | | | Details |
| EGY | EGYPT | | | | Details |
| Egyfert | Egyptian Fertilizer Company | | | | Details |
| EgyptAlum | Egypt Aluminium | | | | Details |
| EH | Eastern Hemisphere | | | | Details |
| EH | WESTERN SAHARA | | | | Details |
| EHC | Equivalent Hydrocarbon Column | | | | Details |
| EHD | Entry Hole Diameter (one of the perforating charges specification) | | | | Details |
| EHP | effective horsepower | | | | Details |
| EHS | environmental, health and safety | | | | Details |
| EHT | Electric Heat Trace | | | | 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 |
| EJ | perforating, enerjet | | | | Details |
| ejtr | ejector | | | | Details |
| EK | Eruptionskreuz | | | | Details |
| EK | EQUATORIAL GUINEA | | | | Details |
| EKTA | East Kazakhstan Territorial Administration for Natural Resource Protection Kazakhstan | | | | Details |
| EK-UT | E-Kreuz Unterteil | | | | Details |
| EL | Electric Log | | | | Details |
| EL | Effluent Line | | | | Details |
| EL | elevation | | | | Details |
| EL | elevation(height) | | | | Details |
| EL | Electrolog | | | | Details |
| el gr | elevation ground | | | | Details |
| EL&P | exploration, land and production | | | | Details |
| EL/T | electronic log tops | | | | Details |
| ELAN | Elemental Analysis program (SLB) | | | | Details |
| Elb | Elbert | | | | Details |
| ELB | elbow | | | | Details |
| ELC | Europe Learning Center (Schlumberger's base in France) | | | | Details |
| elec | electric(al) | | | | Details |
| Elec/MAG | electromagnetic | | | | Details |
| elem | element, elementary | | | | Details |
| elev | elevation, elevator | | | | Details |
| ELF | Elf Aquitaine (now TotalFinaElf ) France | | | | Details |
| ELF | NORGE Elf Petroleum Norge A/S Norway | | | | Details |
| ELG | effluent limitation guidelines | | | | Details |
| Elg | Elgin | | | | Details |
| ELGI | Eotvos Lorand Geofizikai Intezet (Geophysical Institute of Hungary) Hungary | | | | Details |
| ELIM | eliminate(tor)(ed) | | | | Details |
| ell(s) | elbow(s) | | | | Details |
| Ellen | Ellenburger | | | | Details |
| Elm | Elmont | | | | Details |
| ELMD | electric line measured depth | | | | Details |
| ELMF | Enhanced Liquid Measurement Flowmeter | | | | Details |
| ELNG | Egypt LNG | | | | Details |
| ELS | Überspülrohr mit Upset | | | | Details |
| ELT | Economic Limit Test | | | | Details |
| ELT | Electric log tops | | | | Details |
| EM | EMOP Log | | | | Details |
| EM | Electro Magnetic (system to transfer data in real time by MWD tools) | | | | Details |
| EM | Exploration Manager | | | | Details |
| EM | Entleerungsmuffe | | | | Details |
| EM | eddy current measurement for wall thickness in corrosion and wear determination | | | | Details |
| EM | Eagle Mills | | | | Details |
| EMAGEO | Entreprise Nationale de Geophysique Algeria | | | | Details |
| EMALCO | Empresa Almacenadora de Combustibles Ltda. Chile | | | | Details |
| EMARAT | Emirates General Petroleum Corp. UAE | | | | Details |
| EMAS | Eco-Management and Audit Scheme | | | | Details |
| Emb | Embar | | | | Details |
| EMBL | Emirates Merchant Bank Ltd. | | | | Details |
| EMC | EPA Emission Measurement Center | | | | Details |
| EMD | Equivalent Mud Density | | | | Details |
| emer | emergency | | | | Details |
| EMF | electromotive force The force that drives electrons and creates an electric current | | | | Details |
| EMF | electromotive force | | | | Details |
| EMG | Electronic Memory Gauge | | | | Details |
| EMG | Equivalent Mud Gradient | | | | Details |
| EMI | Electromagnetic Imager Tool | | | | Details |
| EMI | Electromagnetic Imaging | | | | Details |
| EMI | Electrical Micro Imaging | | | | Details |
| EMMG | Equivalent Mud ??? Gradient | | | | Details |
| EMMS | Electronic Magnetic Multishot Survey | | | | Details |
| EMMS | Equipment Maintenance Management System | | | | Details |
| EMN | electromagnetic | | | | Details |
| EMNEX | Emirates Equity Index | | | | Details |
| EMNI | electromagnetic induction | | | | Details |
| EMO | Electromagnetic Orientation Tool | | | | Details |
| EMOP | EMOP Well Site Processing Log | | | | Details |
| EMP | Electromagnetic Propagation Log | | | | Details |
| EMP | Environmental Management Plan | | | | Details |
| EMP | European melting point | | | | Details |
| empl | employee | | | | Details |
| EMPSC | Egypt Mobile Phone Services Company | | | | Details |
| EMR | Electronic Memory Read-out | | | | Details |
| EMR | Electronic Medical Records | | | | Details |
| EMR | Equipment Movement Record | | | | Details |
| EMR | Department of Energy, Mines, and Resources (Canada) | | | | Details |
| EMS | Environmental Measurement Sonde | | | | Details |
| EMS | Environmental Management System | | | | Details |
| EMS | Emergency Medical Services | | | | Details |
| EMS | Environment Measurement Sonde | | | | Details |
| EMS | Ellis-Madison contact | | | | Details |
| EMT | Emergency Medical Technician | | | | Details |
| EMT | Electromagnetic Fishing Tool | | | | Details |
| EMU | European Economic and Monetary Union | | | | Details |
| emul | emulsion | | | | Details |
| EMV | Estimated Monetary Value | | | | Details |
| EMV | Expected Monetary Value | | | | Details |
| EMW | Equivalent Mud Weight | | | | Details |
| EN | ESTONIA | | | | Details |
| EN PI | Enhanced Productivity Index Log | | | | Details |
| ENACOL | Empresa Nacionale de Combustiveis, SARL Cape Verde | | | | Details |
| ENAFOR | Entreprise Nationale de Forage Algeria | | | | Details |
| ENAGAS | Empresa Nacional del Gas S.A. Spain | | | | Details |
| ENAP | Empresa Nacional del Petroleo Chile | | | | Details |
| encl | enclosure | | | | Details |
| End | Endicott | | | | Details |
| endo | endothyra | | | | Details |
| ENFERSA | Empresa Nationale de Fertiliantes S.A. Spain | | | | Details |
| ENG | Engineering Log | | | | Details |
| eng | engine | | | | Details |
| ENGEBRAS | Engenharia Especializada Brasileira, S.A. Brazil | | | | Details |
| ENGF | Engineer Factual Report | | | | Details |
| ENGPD | Engineering Porosity Data | | | | Details |
| engr(g) | engineer(ing) | | | | Details |
| ENH | Empresa Nacional de Hidrocarbonetos de Moçambique Mozambique | | | | 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 |
| ENJ | Enerjet Log | | | | Details |
| enl | enlarged | | | | Details |
| enml | enamel | | | | Details |
| ENOC | Emirates National Oil Company | | | | 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 |
| Ent | Entrada | | | | Details |
| ENT | entrance | | | | Details |
| ent | entry | | | | Details |
| ENTELEC | Energy Telecommunications & Electrical Association | | | | Details |
| ENV | envelope | | | | Details |
| ENVIR | environment | | | | Details |
| EO | emergency order | | | | Details |
| EOA | End Of Assembly (Completion) | | | | Details |
| EOB | End Of Build (Drilling) | | | | Details |
| EOB | end of build (horizontal wellbore) | | | | Details |
| EOC | Equivalent Oil Column | | | | Details |
| EOC | end of curve | | | | Details |
| Eoc | Eocene | | | | Details |
| EOF | End Of File | | | | Details |
| EOF | End of | | | | Details |
| EOFL | End of Field Life | | | | Details |
| EOI | Expression of Interest | | | | Details |
| EOL | end of line | | | | Details |
| EOM | end of month | | | | Details |
| EONIA | Euro OverNight Index Average | | | | Details |
| EOP | Extreme Overbalanced Perforating | | | | Details |
| EOP | Edinburgh Oil & Gas plc UK | | | | Details |
| EOQ | end of quarter | | | | Details |
| EOR | Enhanced Oil Recovery | | | | Details |
| EOR | east of Rockies | | | | Details |
| EOS | Equation Of State | | | | Details |
| EOT | End Of Tubing | | | | Details |
| EOW | End Of Well Report | | | | Details |
| EOWR | End Of Well Report | | | | Details |
| EOY | end of year | | | | Details |
| EP | Exploration & Production (E&P) | | | | Details |
| EP | Entry Point | | | | Details |
| EP | equalizing prong | | | | Details |
| EP | Exploration Phase | | | | Details |
| EP | end point | | | | Details |
| EP | extreme pressure | | | | Details |
| EP | Extraction Procedure | | | | Details |
| EPA | Exploration & Production - Asia | | | | Details |
| EPA | The USA Environmental Protection Agency | | | | Details |
| EPA | Environmental Protection Agency, US pollution control enforcer | | | | Details |
| EPA | U.S. Environmental Protection Agency | | | | Details |
| EPA | Environmental Protection Agency | | | | Details |
| EPB | Exploration & Production - Business | | | | Details |
| EPBM | Explor & Prod Business Management | | | | Details |
| EPC | Engineering, Procurement and Construction | | | | Details |
| EPC | Engineering, Procurement, Construction | | | | Details |
| EPC | Ethiopian Petroleum Enterprise Ethiopia | | | | Details |
| EPC | Egyptian Petrochemicals Company Egypt | | | | Details |
| EPCA | Energy Policy and Conservation Act of 2000 | | | | Details |
| EPCA | Energy Policy and Conservation Act | | | | Details |
| EPCC | Engineer Procure Construct Commission | | | | Details |
| EPCM | Engineering, Procurem, Construction and Management | | | | Details |
| EPCRA | Emergency Planning and Community Right-to-Know Act | | | | Details |
| EPCRA | Emergency Planning and Community Right –To-Know Act ( Title III of SARA, commonly called Right-To-Know or SARA Title III) | | | | Details |
| EPCU | Electrical Power Conditioning Unit | | | | Details |
| EPDM | Ethylene-Propylene-Diene (unsaturated, type of elastomer) | | | | Details |
| EPE | Exploration & Production - Europe | | | | Details |
| Epedeco | Egyptian Petroleum Development Company | | | | Details |
| EPEX | European Power Exchange | | | | Details |
| EPF | Early Production Facility | | | | Details |
| EPG | Exploration & Production - Africa | | | | 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 |
| EPL | EPL Log | | | | Details |
| EPLF | E&P Leadership Forum | | | | Details |
| EPLG | Epilog | | | | Details |
| EPLPC | EPL-PCD-SGR Log | | | | Details |
| EPLT | E&P Leadership Team | | | | Details |
| EPM | Exploration & Production - Middle East | | | | Details |
| EPM | Enterprise Project Management | | | | Details |
| EPM | equivalents per million The epm is equal to the ppm divided by the equivalent weight | | | | Details |
| EPOD | Expanded Plan of Development | | | | Details |
| Epon. | Eponides | | | | Details |
| Epon. | y. Eponides yeguaensis | | | | Details |
| EPR | Exploration & Production - Russia | | | | Details |
| EPR | Energy profit ratio | | | | Details |
| EPS | Early Production Services | | | | Details |
| EPS | Earning Per Share | | | | Details |
| EPS | Early Production System | | | | Details |
| EPS | Early Production Scheme | | | | Details |
| EPSA | Exploration and Production Sharing Agreement | | | | Details |
| EPSG | European Petroleum Survey Group (—) | | | | Details |
| EPT | EPT Log | | | | Details |
| EPT | Electromagnetic Propagation (ADEPT) | | | | Details |
| EPT | Electromagnetic Propagation Tool | | | | Details |
| EPT | electromagnetic propagation tool Measures propagation time and attenuation rate of microwave energy through the formation Helps distinguish between oil and water | | | | Details |
| EPT | Electromagnetic Propagation | | | | Details |
| EPT | Electromagnetic Propagation Time Log | | | | Details |
| EPTNG | EPT-NGT Log | | | | Details |
| EPTP | Exploration & Production Technology - Projects; a.k.a. EPP | | | | Details |
| EPTS | Exploration & Production Technology - Solutions; a.k.a. EPS | | | | Details |
| EPU | Electrical Power Unit | | | | Details |
| EPW | Exploration & Production - America | | | | Details |
| EPXN | Exploration & Production - New Business | | | | Details |
| EPX-N | Exploration & Production - New Business | | | | Details |
| EPXRTC | Regional Technical Directorate. Team that inherits the project after Exploration has found and appraised them. | | | | Details |
| EPX-RTC | Regional Technical Directorate. Team that inherits the project after Exploration has found and appraised them. | | | | Details |
| EPZ | Emergency Planning Zone | | | | Details |
| eq | equal, equalizer | | | | Details |
| Eq | equation(before a number) | | | | Details |
| EQMW | equivalent mud weight | | | | Details |
| EQP | Equipment | | | | Details |
| EQU | Equipment Run | | | | Details |
| equip | equipment | | | | Details |
| equiv | equivalent | | | | Details |
| ER | Emergency Reponse | | | | Details |
| ER | Extended Reach (in Drilling horizontal wells) | | | | Details |
| ER | Erosion | | | | Details |
| ER | Extended Reach | | | | Details |
| ER | ERITREA | | | | Details |
| E-R | Diagram-Entity Relationship Diagram | | | | Details |
| ER(D) | Extended Reach (Drilling) | | | | Details |
| ERAP | Entreprise de Recherches et d’Activites Petrolieres France | | | | Details |
| ERC | Emissions Reduction Credit | | | | Details |
| ERC/MK | erection mark | | | | Details |
| ERCB | Energy Resources Conservation Board | | | | Details |
| ERCB | Energy Resources Conservation Board, Alberta | | | | Details |
| ERCB | Energy Resource Conservation Board (Alberta, Canada) | | | | Details |
| ERD | Extended Reach Drilling | | | | Details |
| ERD | Extended Reach Drilling (see comment) | | | | Details |
| erect | erection | | | | Details |
| ERF | error function | | | | Details |
| ERI | ERITREA | | | | Details |
| Eric | Ericson | | | | Details |
| ERIP | European/Russian Council for the Petroleum Industry (—) | | | | Details |
| ERM | Exploration Reservoir Management | | | | Details |
| EROEI | Energy return on energy invested | | | | Details |
| ERP | Emergency Response Plan | | | | Details |
| ERP | Enterprise Resource Planning | | | | Details |
| ERP | Experienced Retention Position | | | | Details |
| ERPG | Emergency Response Planning Guidelines | | | | Details |
| ERS | Easy Record Software | | | | Details |
| ERT | Emergency Response Team | | | | Details |
| ERT | Emergency Response Training | | | | Details |
| ERT | EPA Electronic Reporting Tool | | | | Details |
| ERW | extended reach well | | | | Details |
| ERW | electric resistance weld | | | | Details |
| ERWDA | Environmental Research & Wildlife Development Agency (UAE) | | | | Details |
| ES | Electrical Survey Tool | | | | Details |
| ES | Petroleum Engineering | | | | Details |
| ES | EL SALVADOR | | | | Details |
| ES | SPAIN | | | | Details |
| ES | E1ectrical Epithermal | | | | Details |
| ES | Electrical or Electrolog | | | | Details |
| ES | Electric Logging | | | | Details |
| ES | Electrical | | | | Details |
| ESA | Employees Shareholder Association | | | | Details |
| ESA | Romania & Austria | | | | Details |
| ESAF | Enhanced Structural Adjustment Facility | | | | Details |
| ESAR | Estimating & Schedule Assurance Review | | | | Details |
| ESCWA | Economic and Social Commission for West Asia | | | | Details |
| ESD | Emergency Shut Down | | | | Details |
| ESD | Technology Development & Application | | | | Details |
| ESD | Equivalent Static Density | | | | Details |
| ESD | emergency shut-down | | | | Details |
| ESD | emergency shutdown | | | | Details |
| ESDS | emergency shut down system | | | | Details |
| ESDV | Emergency Shut Down Valve | | | | Details |
| ESF | Formation Evaluation | | | | Details |
| ESG | Production G&G | | | | Details |
| ESG | Emirates Society of GeoScience | | | | Details |
| ESH | WESTERN SAHARA | | | | Details |
| ESHIA | Envinmental Safety Health Impact Assessment | | | | Details |
| ESIT | Electronic Shut In Tool | | | | Details |
| ESM | Middle East & Caspian | | | | Details |
| ESM | Environmental Severity Measurement | | | | Details |
| ESN | North Africa & Offshore | | | | Details |
| ESP | Electric Submersible Pump | | | | Details |
| ESP | Electrical Submersible Pump | | | | Details |
| ESP | SPAIN | | | | Details |
| ESP | electrostatic precipitators | | | | Details |
| ESPCP | Electric Submersible Progressive Cavity Pump | | | | Details |
| E-SPIR | e-Spare Parts Interchangeable Record | | | | Details |
| ESR | Reservoir Engineering | | | | Details |
| ESR | equilibrium step rate test | | | | Details |
| ESRI | GIS Software (ESRI) | | | | Details |
| ESRI | Environmental Systems Research Institute | | | | Details |
| ESS | Expandable Sand Screen | | | | Details |
| ESSAF | Esso Standard Societe Anonyme Francaise France | | | | Details |
| ESSO | REP Societe Esso de Recherches et Exploitation Petrolieres France | | | | Details |
| EST | Production Technology | | | | Details |
| EST | ESTONIA | | | | Details |
| est | estimate, estimated | | | | Details |
| Est | Estate | | | | Details |
| est | estimate(ed)(ing) | | | | Details |
| ES-ULS | Salt Dome Profiling | | | | Details |
| ESV | emergency shut-down valve | | | | Details |
| ESX | Portfolio & Planning | | | | Details |
| ET | ETHIOPIA | | | | Details |
| et | al. and others | | | | Details |
| et | con. and husband | | | | Details |
| et | seq. and the following | | | | Details |
| et | ux. and wife | | | | Details |
| et | vir. and husband | | | | Details |
| et al | and others | | | | Details |
| et ux | and wife | | | | Details |
| et vir | and husband | | | | Details |
| ETA | Estimated Time Arrival | | | | Details |
| ETA | Expected Time of Arrival | | | | Details |
| ETA | estimated time of arrival | | | | Details |
| etal | et al. (and others) | | | | Details |
| ETAP | Eastern Trough Area Project | | | | Details |
| ETAP | Entreprise Tunisienne d’Activités Petrolières | | | | Details |
| ETAP | Entreprise Tunisienne d’Activites Petrolieres Tunisia | | | | Details |
| ETBE | ethyl tert-butyl ether | | | | Details |
| ETC | Expected Time of Completion | | | | Details |
| etc | et cetera (and the rest) | | | | Details |
| ETD | Estimated Time Delay | | | | Details |
| ETD | Expected Time of Departure | | | | Details |
| ETDE | Energy Technology Data Exchange (intl. consortium) (—) | | | | Details |
| ETF | exchange-traded fund | | | | Details |
| Eth | Ethylene | | | | Details |
| ETH | ETHIOPIA | | | | Details |
| eth | ethane | | | | Details |
| ethyle | ethylene | | | | Details |
| ETIX | Electronic Tickets for flights | | | | Details |
| ETN | Neutron Formation | | | | Details |
| ETN | Epithermal Neutron | | | | Details |
| ETP | Experience Transfer Position | | | | Details |
| ETPM | Societe Entrepose G.T.M pour les Travaux Petroliers Maritimes France | | | | Details |
| ETS | Expected Time of Sailing | | | | Details |
| ETT | Electromagnetic Thickness Log | | | | Details |
| ETTD | Electromagnetic Thickness Test | | | | Details |
| ETT-D | Multifrequency Electromagnetic Thickness Log | | | | Details |
| ETU | Electrical Test Unit | | | | Details |
| E-type | Conditional Expectation Estimate | | | | Details |
| EU | External Upset Verbinder | | | | Details |
| EU | European Union | | | | Details |
| EU | EUROPA ISLAND | | | | Details |
| EU | Eutaw | | | | Details |
| EU | European Union (—) | | | | Details |
| EUE | External Upset Ends (see comment!) | | | | Details |
| EUE | external upset end | | | | Details |
| euhed | euhedral | | | | Details |
| EUQ | EUROPA ISLAND | | | | Details |
| EUR | Estimated Ultimate Recovery | | | | Details |
| EUR | Expected ultimate recovery | | | | Details |
| EURAFRAP | EURAFRAP Nederland B.V. (and others) Netherlands | | | | Details |
| EURAFREP | Societe de Recherches et d’Exploitation de Petrole France | | | | Details |
| EUROCORD | European Federation of Twine, Cordage and Netting Industries | | | | Details |
| EUROGAS | European Union of the Natural Gas Industry Belgium | | | | Details |
| EUROGIF | European Oil and Gas Innovation Forum | | | | Details |
| EUROPIA | European Petroleum Industry Assn. | | | | Details |
| EV | Expectation Value | | | | Details |
| EV | Expected Value | | | | Details |
| ev | electron-volts | | | | Details |
| EV | Erdoel-Vereinigung (Swiss Petroleum Assn.) Switzerland | | | | Details |
| eval | evaluate | | | | Details |
| evap | evaporation, evaporate | | | | Details |
| EVARE | Evaluation Report | | | | Details |
| EVOI | Early Value Of Information | | | | Details |
| EVP | Employee Value Proposition | | | | Details |
| EVR | Evaluation Run | | | | Details |
| ev-sort | even sorted | | | | Details |
| EW | East West (in inclination and well survey) | | | | Details |
| EW | electric weld | | | | Details |
| EW | exploratory well | | | | Details |
| EWA | Energy Waveform Analysis | | | | Details |
| EWDF | Effluent Water Disposal Facilities | | | | Details |
| EWMS | Eng Work Management System | | | | Details |
| EWP4 | EWR - Phase 4 | | | | Details |
| EWR | Early Warning Report | | | | Details |
| EWR | Early Warning Radar | | | | Details |
| EWR | End Of Well Report | | | | Details |
| EWR-M5 | EWR-M5 Resistivity | | | | Details |
| EWR-P4 | EWR-Phase 4 Resisitivity | | | | Details |
| EWR-P4D | EWR-Phase 4D Resistivity | | | | Details |
| EWRS | Electromagnetic Wave Resistivity (Shielded) | | | | Details |
| EWT | Extended Well Test | | | | Details |
| EWT | early well tie-ins | | | | Details |
| ex | except | | | | Details |
| EX | example | | | | Details |
| Ex | Exeter | | | | Details |
| EXAM | Examination | | | | Details |
| EXC | Excitation | | | | Details |
| exc | Excavation | | | | Details |
| exch | Exchanger | | | | Details |
| EXCL | EXCLusive | | | | Details |
| excl | excellent | | | | Details |
| EXEC | Executive | | | | Details |
| exh | Exhaust | | | | Details |
| exh | exhibit | | | | Details |
| EXIM | Export-Import Bank | | | | Details |
| exist | existing | | | | Details |
| EXL | or XL, Exploration Licence (United Kingdom), a type of onshore licence issued between the First Onshore Licensing Round (19 6) and the Sixth (1992) | | | | Details |
| EXP | expansion | | | | Details |
| exp | expense | | | | Details |
| EXP | JT expansion joint | | | | Details |
| exp | plg expendable plug | | | | Details |
| EXPEC | Exploration and Petroleum Engineering Center | | | | Details |
| EXPEC-ARC | Exploration and Petroleum Engineering Center’s Advanced Research Center | | | | Details |
| expir | expire(ed)(ing)(ation) | | | | Details |
| expl | exploratory, exploration | | | | Details |
| explos | explosive | | | | Details |
| EX-PRF | explosion proof | | | | Details |
| exr | executor | | | | Details |
| Exrx | executrix | | | | Details |
| exst | existing | | | | Details |
| EXT | Extended rate | | | | Details |
| ext | external | | | | Details |
| Ext | M/H extension manhole | | | | Details |
| ext(n) | extended, extension | | | | Details |
| extr | exterior | | | | Details |
| extrac | extraction | | | | Details |
| extrm | extreme or extremely | | | | Details |
| EXW | EX Works | | | | Details |
| EYC | estimated yearly consumption | | | | Details |
| EZ | CZECH REPUBLIC | | | | Details |
| EZIP | Expandable Zonal Inflow Profiler | | | | Details |
| EZSV | EZSV Log | | | | Details |
| EZSVTM | a drillable bridge plug | | | | Details |
| EZV | EZ Valve | | | | Details |
| F.DESP (FD) | Free DESPatch | | | | Details |
| F.O.E | fuel oil equivalent | | | | Details |
| FAE | Förderart Ergänzung Stelle | | | | Details |
| FBE | Fusion Bonded Epoxy | | | | Details |
| FBEJ | Full Bore Expansion Joint | | | | Details |
| FCVE | F Curve Log | | | | Details |
| FD EFF | feed effluent | | | | Details |
| FDEN | Fluid Density | | | | Details |
| FE | Formation Evaluation | | | | Details |
| FE | Flow Equipment | | | | Details |
| FE | Flow Element | | | | Details |
| FE | Flow Efficiency | | | | Details |
| FE | facility engineer | | | | Details |
| Fe | iron | | | | Details |
| FE/L | from east line | | | | Details |
| Fe2(SO4)3 | ferric sulfate | | | | Details |
| FEA | Federal Environmental Agency (Authority) | | | | Details |
| FEAST | Fluid Evaluation And Sampling Technologies | | | | Details |
| FEC | Fonds d’Equipement Communal | | | | Details |
| FeCO3 | iron carbonate scale | | | | Details |
| FED | Four Electrode Dipmeter | | | | Details |
| fed | federal | | | | Details |
| FEED | Front End Engineering and Design | | | | Details |
| FEED | Front End Engineering Design | | | | Details |
| FEIS | Final Environmental Impact Statement | | | | Details |
| FEL | Front End Loading (AFEs & Projects) | | | | Details |
| fel | from east line | | | | Details |
| FELA | Federal Employers Liability Act | | | | Details |
| FEM | Finite Element Analysis | | | | Details |
| FEM | female | | | | Details |
| FeOH | iron hydroxide gel (a precipitate after acid spends) | | | | Details |
| FEPD | Front End Project Delivery | | | | Details |
| FEPM | fluoroelastomers (AflasTM, etc) | | | | Details |
| FER | Field Equipment Room | | | | Details |
| FERC | Federal Energy Regulatory Commission (US gov agency) | | | | Details |
| FERC | U.S. Federal Energy Regulatory Commission | | | | Details |
| FERC | Federal Energy Regulatory Commission | | | | Details |
| Ferg | Ferguson | | | | Details |
| ferr | ferruginous | | | | Details |
| fert | fertilizer | | | | Details |
| Fertil | Ruwais Fertilizer Industries | | | | Details |
| FERTIL | Ruwais Fertilizer Industries Ltd. Abu Dhabi | | | | Details |
| FESA | Front End Studies Americas | | | | Details |
| Fe-st | ironstone | | | | Details |
| FeSx | one of several forms of iron sulfide | | | | Details |
| FET | Formation Evaluation Test | | | | Details |
| FEWD | Formation Evaluation While Drilling | | | | Details |
| FGEOL | Final Geological Report | | | | Details |
| FHEX | Friday Holidays EXcluded. (Muslim Countries) | | | | Details |
| FLE | FLE time (Finland, Lithuania, Estonia) UTC+2 or +3 summertime (EEC: Eastern European Time) | | | | Details |
| FLET | Flowline End Termination (AKA PLET) | | | | Details |
| flex | flexible | | | | Details |
| FMEA | failure modes, & effects analysis | | | | Details |
| FMEA | Failure Modes and Effects Analysis | | | | Details |
| FMEA | failure mode and effects analysis | | | | Details |
| FMECA | Failure Modes, Effects, and Criticality Analysis | | | | Details |
| FMECA | failure mode and criticality effects analysis | | | | Details |
| F-MET | flowmeter | | | | Details |
| FNEL | from northeast line | | | | Details |
| FOET | further offshore emergency training | | | | Details |
| FOE-WOE | flanged one end, welded one end | | | | Details |
| FRANCAREP | Compagnie Franco-Afrique de Recherches Petrolieres France | | | | Details |
| FRARE | Fracture Report | | | | Details |
| Fred | Fredericksburg | | | | Details |
| Fred | Fredonia | | | | Details |
| Free Ex Ins | FREE of any EXtra INSurance (Owners) | | | | Details |
| FREP | Fujian Refining and Petroleum Company Ltd. | | | | Details |
| Freq | Frequency | | | | Details |
| FRES | Final Reserve Report | | | | Details |
| FSEL | from southeast line | | | | Details |
| FTE | Full-Time Equivalent | | | | Details |
| FTE | Field Test Engineer | | | | Details |
| FTE | Female Threaded End | | | | Details |
| FTE | Full-Time Engineer (Full Time Employment / Full-Time Employee) | | | | Details |
| FTE | Full Time Equivalent (staffing) | | | | Details |
| FTE | Full Time Equivalent | | | | Details |
| FTRE | Formation Testing Report | | | | Details |
| Fussel | Fusselman | | | | Details |
| FY LE | Full Year Latest Estimate | | | | Details |
| FYE | For Your Entertainment | | | | Details |
| FYE | Full Year Estimate | | | | Details |
| FYE | fiscal year ending | | | | Details |
| FYLE | Full Year Latest Estimate | | | | Details |
| G egg | goose egg | | | | Details |
| GASBEND | Good And Safe (Port) Both ENDs | | | | Details |
| GASUNIE | NV Nederlandse Gasunie Netherlands | | | | Details |
| GDE | Gross Depositional Environment | | | | Details |
| GDE | General Deposition Environment | | | | Details |
| GDE | geothermal development, failure | | | | Details |
| GE | Condensate gas equivalent | | | | Details |
| GE | Ground Elevation | | | | Details |
| GE | GEORGIA | | | | Details |
| GE | grooved ends | | | | Details |
| GE | General Electric Company | | | | Details |
| GEISO | Geisum Oil Company Egypt | | | | Details |
| gel | gelled | | | | Details |
| gel | jelly-like colloidal suspension | | | | Details |
| GEM | Gun Evaluation Model | | | | Details |
| gen | generation, generator | | | | Details |
| genl | general | | | | Details |
| GENS | GENeralS or general cargo | | | | Details |
| GEO | GeoScience Conference for Middle East | | | | Details |
| GEO | GEORGIA | | | | Details |
| Geo | Georgetown | | | | Details |
| geo | geothermal | | | | Details |
| GEO | Geophone | | | | Details |
| GEOCH | Geochemical Evaluation | | | | Details |
| GEODY | GEO DYS Log | | | | Details |
| GEOEV | Geochemical Evaluation Report | | | | Details |
| GEOFO | Geological & Formation Evaluation Report | | | | Details |
| GEOL | Geological Surveillance Log | | | | Details |
| Geol | geologist | | | | Details |
| geol | geology(ist)(ical) | | | | Details |
| GEOP | Geophone Data Log | | | | Details |
| GEOP | Geophone | | | | Details |
| geop | geophysics(ical) | | | | Details |
| GEOPLIN | Slovenian Gas Company Slovenia | | | | Details |
| GEOPN | Geological Well Prognosis Report | | | | Details |
| GEOPR | Geological Operations Progress Report | | | | Details |
| GEORE | Geological Report | | | | Details |
| GEOROT | GEOgraphical ROTation | | | | Details |
| GeoTap | GeoTap Formation Tester | | | | Details |
| GEP | Good Engineering Practice | | | | Details |
| GEP | French Oil & Gas Suppliers Council (Groupement des Entreprises Parapetrolieres et Paragazieres) France | | | | Details |
| gHSEr | getting Health Safety & Environment right (BP expression) | | | | Details |
| GLE | Ground Level Elevation (generally in metres above mean sea level) | | | | Details |
| Glen | Glenwood | | | | Details |
| GLESS | GearLESS | | | | Details |
| GNEC | General Nuclear Engineering Co. | | | | Details |
| GOEV | Gas Öl Verhältnis | GOR - Gas Oil Ratio | | | Details |
| GOMEX | Gulf of Mexico | | | | Details |
| GPEP | Gabinete Para Pesquisa e Exploracao de Petroleo Portugal | | | | Details |
| GR/D CALIPER | Gamma Ray/Dual Caliper | | | | Details |
| GR/NEU | (Thru Casing) | | | | Details |
| GR/NEU | G/R Neutron | | | | Details |
| GR/NEU | Gamma Ray Neutron-Cased Hole | | | | Details |
| GR/NEU | Gamma Ray Neutron-Open Hole | | | | Details |
| GRE | Glass Reinforced Epoxy (Fibreglass) | | | | Details |
| GRE | Ground Elevation (also [GR or GE]) | | | | Details |
| GRE | Ground Elevation (also ) | | | | Details |
| GRE | Glass Reinforced Epoxy | | | | Details |
| GREG | Groupe de recherche en gazotechnologies | | | | Details |
| GTEE | GuaranTEE | | | | Details |
| GWREP | Geo Well Report | | | | Details |
| Haynes | Haynesville | | | | Details |
| HCE | Category Estimation | | | | Details |
| HDLTSBENDS | Half Despatch Lay Time Saved Both Ends | | | | Details |
| HDPE | High Density Polyethelene | | | | Details |
| HDPE | High Density Polyethylene | | | | Details |
| HDPE | high density polyethylene plastic | | | | Details |
| HE | High Energy | | | | Details |
| HE | see Hydrogen Embrittlement | | | | Details |
| HE | heat exchange | | | | Details |
| HEC | hydroxyethyl cellulose | | | | Details |
| HEC | hydroxyl ethyl cellulose, a synthetic polymer | | | | Details |
| Heeb | Heebner | | | | Details |
| Heel | the area of pay closest to the casing in a highly deviated well | | | | Details |
| HEGF | high energy gas fracturing | | | | Details |
| HEGS | high energy gas stimulation | | | | Details |
| HEL | Hosteil Environment Logging | | | | Details |
| HELDK | HELicopter DecK | | | | Details |
| HELIOS | Ste. Pour la Construction et l’Exploitation d’une Usine d’Helium Liquide et d’Azote Algeria | | | | Details |
| Hem | hematite | | | | Details |
| HEMP | Hazards & Effects Management Process | | | | Details |
| HEPF | High Energy Perforating & Fracturing | | | | Details |
| Her | Herington | | | | Details |
| Herm | Hermosa | | | | Details |
| HES | Halliburton Energy Services | | | | Details |
| HESP | Horizontal Electric Submersible Pump (surface pump) | | | | Details |
| Het | heterostegina | | | | Details |
| HETq | High Temperature Equipment | | | | Details |
| HEX | heat exchanger | | | | Details |
| hex | hexagon(al) | | | | Details |
| hex | hexane | | | | Details |
| HEX | HD hex head | | | | Details |
| HEXT | Hex Diplog | | | | Details |
| HFE | Human Factors Engineering | | | | Details |
| HME | Magnitude Estimation | | | | Details |
| Home | Cr Home Creek | | | | Details |
| HSE | Health safety environment | | | | Details |
| HSE | Health, Safety and Environment or Health & Safety Executive (United Kingdom) | | | | Details |
| HSE | Health, Safety and Environment or Health & Safety Executive (United Kingdom) | | | | Details |
| HSE | health, safety and environment | | | | Details |
| HSE | Health Safety and Environment | | | | Details |
| HSE | house(ed)(ing) | | | | Details |
| H-SEL | perforating hyper select | | | | Details |
| HSES | Health Safety Environment & Security | | | | Details |
| HSESD | Health Safety Environment & Sustainable Development | | | | Details |
| HSESV | HSE Supervisor | | | | Details |
| HSSE | Health Safety Security & Environment | | | | Details |
| HUET | Helicopter Underwater Egress/Escape Training | | | | Details |
| HWE | High Wiping Efficiency (Halliburton) | | | | 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 |
| IATEFL | International Association of Teachers of English as Foreign Language | | | | Details |
| IBES | International Bureau for Energy Studies | | | | Details |
| ICE | Integrated Charge Evaluation | | | | Details |
| ICE | InterContinental Exchange | | | | Details |
| ICEED | International Research Center for Energy and Economic Development | | | | Details |
| ICP-OES | inductive coupled plasma optical emission spectroscopy | | | | Details |
| IDE | Integrated Device Electronics | | | | Details |
| IDEL | IDEL Log | | | | Details |
| IDENT | identify(ier)(ication) | | | | 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 |
| IFE | Institute of Energy Technology Norway | | | | Details |
| i-Field | Intelligent Field | | | | Details |
| IIES | International Institute for Energy Studies | | | | Details |
| immed | immediate (lee) | | | | Details |
| immed | immediate(ly) | | | | Details |
| imperv | impervious | | | | Details |
| IMPES | Implicit to Pressure Explicit to Saturation | | | | Details |
| in./sec | inches per second | | | | Details |
| Inbded | imbedded | | | | Details |
| INCRE | Incline Report | | | | Details |
| INDEIN | Ingenieria y Desarrolio Industrial S.A. Spain | | | | Details |
| INDWE | Individual Well Record Report | | | | Details |
| INJEC | Injection Falloff Log | | | | Details |
| INPE | installing(ed) pumping equipment | | | | Details |
| Inpex | Indonesia Petroleum Ltd. | | | | Details |
| INPEX | Indonesian Petroleum Ltd. Japan | | | | Details |
| insole | insoluble | | | | Details |
| Inst Ser | Special Instrument Service Sp | | | | 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 |
| INVES | Investigative Program Report | | | | Details |
| Investcorp | Arabian Investment Banking Corporation | | | | Details |
| IOEC | Iranian Offshore Engineering Construction Company | | | | Details |
| IOEM | Invert Oil Emulsion Mud | | | | 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 |
| IPIECA | International Petroleum Industry Environmental Conservation Association | | | | Details |
| IPIECA | International Petroleum Industry Environmental Conservation Assn.UK | | | | Details |
| Ire | Ireton | | | | Details |
| IRENA | International Renewable Energy Agency | | | | Details |
| IREP | Integrated Report | | | | Details |
| irreg | irregular | | | | Details |
| ISEM | Institute of Earth and Man | | | | Details |
| ISNEFT | Israel National Oil Co. Ltd. Israel | | | | Details |
| IUE | internal upset ends | | | | Details |
| Ives | Iverson | | | | Details |
| Japex | Japan Petroleum Exploration Ltd. | | | | Details |
| JAPEX | Japan Petroleum Exploration Co. Ltd. Japan | | | | Details |
| JCUMWE | Joint Committee on Uniformity of Methods of Water Examination | | | | Details |
| JDECO | Jerusalem District Electricity Corporation | | | | Details |
| JE | Junior Engineer | | | | Details |
| JE | JERSEY | | | | Details |
| JEC | Japan Energy Corporation Japan | | | | Details |
| jeep | Same as Holiday | | | | Details |
| jeeper | Electronic device or instrument used to detect holes (holidays) in the steel pipeline protective coating | | | | Details |
| Jeff | Jefferson | | | | Details |
| Jersey | Standard Oil Company of New Jersey | | | | Details |
| JEXIM | Japan Export Import Bank | | | | Details |
| JEY | JERSEY | | | | Details |
| Jordinvest | Jordan Investment Trust | | | | Details |
| JPEG | (or JPG)-Joint Photographics Experts Group | | | | Details |
| JSEA | Job Safety Environment Analysis | | | | Details |
| KALREZTM | a brand name for a high temperature seal | | | | Details |
| KAZGOSNEDRA | Kazakhstan | | | | Details |
| KBE | Kelly Bushing Elevation (in meters above sea level, or meters above Ground Level) | | | | Details |
| KDBE | kelly drive bushing elevation | | | | Details |
| KE | KENYA | | | | Details |
| Ke | Keener | | | | Details |
| KE1 | Kind of packer in GAE (it is invented in GAE, named after Kren & Edith | | | | Details |
| KED | Kriging with External Drift | | | | Details |
| keff | Effective permeability | | | | Details |
| Keg | Effective permeability to gas | | | | Details |
| KEN | KENYA | | | | Details |
| Keo | Effective permeability to oil | | | | Details |
| Keo-Bur | Keokuk-Burlington | | | | Details |
| KEPCO | Khazar Exploration and Production Company | | | | Details |
| KERMAC | Kerr-McGee Corp. | | | | Details |
| kero | kerosine(kerosene) | | | | Details |
| ket | ketone | | | | Details |
| KEV | thousand electron-volts | | | | Details |
| KEVLARTM | an extremely strong fiber, common in composites | | | | Details |
| Kew | Effective permeability to water | | | | Details |
| Key | Keystone | | | | Details |
| KFAED | Kuwait Fund for Arab Economic Development | | | | Details |
| KIPCE | Kuwait International Petroleum Conference and Exhibition | | | | Details |
| K-Line | Kawasaki Kishen Kaisha | | | | Details |
| Kl-Packer | Klappen-Packer | | | | Details |
| KREB | Kuwait Real Estate Bank | | | | Details |
| KREIC | Kuwait Real Estate Investment Consortium | | | | Details |
| ktle | kettle | | | | Details |
| KUFPEC | Kuwait Foreign Petroleum Exploration Company | | | | Details |
| KUFPEC | Kuwait Foreign Petroleum Exploration Co. KSC Kuwait | | | | Details |
| L/Cret | Lower Cretaceous | | | | Details |
| LAER | Lowest Achievable Emission Rate | | | | Details |
| LCOE | levelized cost of electricity | | | | Details |
| LDPE | Low Density Polyethylene | | | | Details |
| LDTEP | LDT EPT Gamma Ray Log | | | | Details |
| LE | LEBANON | | | | Details |
| Le C | Le Comptom | | | | Details |
| Leadv | Leadville | | | | Details |
| LEAKL | Leak Detection Log | | | | Details |
| LEH-MT | Logging Equipment Head with Tension and Mud Temperature | | | | Details |
| LEH-T | Logging Equipment Head with Tension | | | | Details |
| LEL | Lowest Explosive Limit (lowest concentration of gas in air which will explode upon ignition. Below the LEL, the mixture is too lean) | | | | Details |
| LEL | lower explosive limit | | | | Details |
| Len | Lennep | | | | Details |
| len | lenticular | | | | Details |
| Lens | a permeable, often small sedimentary deposit bordered by impermeable rock | | | | Details |
| LEP | Laboratory for Exploration and Production | | | | Details |
| LEPRE | Litho-Elastic Property Report | | | | Details |
| Lge | league | | | | Details |
| LIE | LIECHTENSTEIN | | | | Details |
| Lieb | Liebuscella | | | | Details |
| LITDE | Litho Density Quicklook Log | | | | Details |
| LITRE | Lithostratigraphy Report | | | | Details |
| LL&E | Louisiana Land & Exploration Co. | | | | Details |
| LL/GR/NEU | Laterolog-Gamma Ray-Neutron | | | | Details |
| LL/NEU | Laterolog-Neutron | | | | Details |
| LLDPE | Linear Low-Density Polyethylene | | | | Details |
| LNE | Laboratoire National d'Essais | | | | Details |
| LOE | Lease Operating Expenses | | | | Details |
| Loess | deposits of windborne dust | | | | Details |
| LOLER | Lifting Operations and Lifting Equipment Regulations | | | | Details |
| lse | lease | | | | Details |
| LT valve | Low Torque valve | | | | Details |
| LUBRIESUR | Lubricantes del Sur S.A. Spain | | | | Details |
| LUBRINER | Lubricantes Nervion S.A. Spain | | | | Details |
| Lued | Lueders | | | | Details |
| LVEL | Linear Velocity Log | | | | Details |
| M1E | milled one end | | | | Details |
| M2E | milled two ends | | | | Details |
| MAE | Mean Absolute Error | | | | Details |
| Marg. Tex. | Marginulina texana | | | | Details |
| MBE | Material Balance Equation | | | | Details |
| mboe | million barrels oil equiv | | | | Details |
| MBOE | Thousand barrels of oil equivalent | | | | Details |
| Mboed | thousand barrels of oil equivalent per day | | | | Details |
| McEl | McElroy | | | | Details |
| Mcfe | thousand cubic feet of natural gas equivalent | | | | Details |
| MCHE | Main Cryogenic Heat Exchanger | | | | Details |
| MDEA | Methyl Diethanolamine (aMDEA) | | | | Details |
| MDEA | methyl diethanolamine | | | | Details |
| MDEG | Michigan Department of Environmental Quality | | | | Details |
| mdse | merchandise | | | | Details |
| ME | Month End (some reports at the end of the month) | | | | Details |
| ME | Middle East | | | | Details |
| ME | MONTENEGRO | | | | Details |
| ME | Maine | | | | Details |
| MEA | Monoethanolamine | | | | Details |
| MEA | ethanolamine | | | | Details |
| Meak | Meakin | | | | Details |
| meas | measure(ed)(ment) | | | | Details |
| MEAW | Middle East and Arab World | | | | Details |
| MEB | Middle East Bank | | | | Details |
| MEC | Monitoring and Evaluation Committee | | | | Details |
| MEC | Middle East Caspian | | | | Details |
| MECG | Middle East Capital Group | | | | Details |
| mech | mechanic(al), mechanism | | | | Details |
| Mech | DT mechanical down time | | | | Details |
| MeCl | methylene chloride | | | | Details |
| MECP | Mechanical External Casing Packer | | | | Details |
| med | medium | | | | Details |
| med | median | | | | Details |
| Med | Medina | | | | Details |
| med | FO medium fuel oil | | | | Details |
| med | gr medium grained | | | | Details |
| Med B | Medicine Bow | | | | Details |
| MEDCO | Mediterranean Oil Shipping & Transport Co. SAL Lebanon | | | | Details |
| Medevac | Medical Evacuation (type of a drill that simulates the man-down situation) | | | | Details |
| MEDGULF | Mediterranean and Gulf Insurance and Reinsurance Company | | | | Details |
| MEDP | Maximum Expected Design Pressure | | | | Details |
| Medr | Medrano | | | | Details |
| MEDT | Middle East Drilling Technology Conference and Exhibition | | | | Details |
| Meet | Meeteetse | | | | Details |
| MEF | Minimum Economic Field size | | | | Details |
| MEG | Mono Ethylene Glycol | | | | Details |
| MEG | monoethylene glycol A hydrate inhibitor | | | | Details |
| MEG | methane-rich gas | | | | Details |
| MEGAL | Mittle-Europaische-Gasleitungsgesellschaft Germany | | | | Details |
| MEGAS | Middle East Gas Summit | | | | Details |
| MEGO | My Eyes Glaze Over (useful for courses) | | | | Details |
| MEIB | Middle East Investment Bank | | | | Details |
| MEJET | Middle East Jetfuels Conference | | | | Details |
| MEK | methylethylketone | | | | Details |
| MEKOG | Maatschappij Tot Exploitatie van Kooksovengassen NV Netherlands | | | | Details |
| MEL | Maximum Exposure Limit | | | | Details |
| MEL | Micro Eletric Log | | | | Details |
| memo | memorandum | | | | Details |
| Men | Menard lime | | | | Details |
| MENA | Middle East & North Afrika | | | | Details |
| MENA | Middle East and North Africa (includes Algeria, Egypt, Iran, Iraq, Kuwait, Libya, Qatar, Saudi Arabia, and the United Arab Emirates) | | | | Details |
| Mene | Menefee | | | | Details |
| MEng | Master of Engineering | | | | Details |
| MeOH | Methanol | | | | Details |
| MeOH | methyl alcohol | | | | Details |
| MEOR | Microbial EOR | | | | Details |
| MEOR | microbial enhanced oil recovery | | | | Details |
| MEOS | Middle East Oil Show | | | | Details |
| MEOW | Middle East Oil Week | | | | Details |
| MEP | Maximise Economic Production Potential | | | | Details |
| MEP | mean effective pressure | | | | Details |
| MEPRL | Mechanical Properties Log | | | | Details |
| MER | Maximum Efficient Rate | | | | Details |
| MER | Medical Emergency Response | | | | Details |
| MER | Maximum effective rate (of production) | | | | Details |
| MER | maximum efficient recovery or rate | | | | Details |
| Mer | Meramec | | | | Details |
| merc | mercury | | | | Details |
| mercap | mercaptan | | | | Details |
| MERCR | Mercury Injection Study Report | | | | Details |
| MERG | Merge FDC/CNL/Gamma Ray/Dual Laterolog/Micro SFL Log | | | | Details |
| merid | meridian | | | | Details |
| MES | Minimum Environmental Standard | | | | Details |
| Mesh | a measurement of particle size based on the openings per inch in a screen | | | | Details |
| Meso | Mesozoic | | | | Details |
| MEST | MEST Log | | | | Details |
| MEST | Formation Microscanner | | | | Details |
| MET | Middle East Time | | | | Details |
| meta | metamorphic | | | | Details |
| METAP | Mediterranean Environmental Technical Assistance Program | | | | Details |
| METG | Mittelrheinische Ergastransport GmbH Germany | | | | Details |
| meth | methane | | | | Details |
| meth-bl | methylene blue | | | | Details |
| meth-cl | methyl chloride | | | | Details |
| methol | methanol | | | | Details |
| methr | methanator | | | | Details |
| METL | Multifrequency Electromagnetic Thickness Log | | | | Details |
| METP | Maximum Expected Tubing Pressure | | | | Details |
| metr | metric | | | | Details |
| mev | million electron volts | | | | Details |
| MEX | MEXICO | | | | Details |
| mezz | mezzanine | | | | Details |
| MFE | Multi Flow Evaluator (Schlumberger) | | | | Details |
| MFE | High Resolution Shallow Focused Electric | | | | Details |
| MFE | a trademark for a repeat formation tester | | | | Details |
| microsec | microsecond | | | | Details |
| MIE | moving in equipment | | | | Details |
| Mise | Misener | | | | Details |
| MLE | Motor Lead Extension (ESP motor flat) | | | | Details |
| Mle | milled one end | | | | Details |
| MMboe | million barrels of oil equivalent | | | | Details |
| MMboed | million barrels of oil equivalent per day | | | | Details |
| MMcfe | million cubic feet (of natural gas equivalent) | | | | Details |
| MMHE | Malaysia Marine Heavy Engineering | | | | Details |
| MNE | MONTENEGRO | | | | Details |
| MODEC | Mitsui Ocean Development & Engineering Co., Ltd. Japan | | | | Details |
| MOE | millout extension | | | | Details |
| MOE | milled other end | | | | Details |
| MOE | moving out equipment | | | | Details |
| Moen | Moenkopi | | | | Details |
| MOEV | Mechanically Operated Equalizing Valve (northstar tool) | | | | Details |
| MPEG | Motion Picture Expert Group | | | | Details |
| mrem | millirem (a radiation dose or exposure unit) | | | | Details |
| MREX | Magnetic Resonance Explorer Imaging Log | | | | Details |
| MRIRE | Magnetic Resonance Image Report | | | | Details |
| MSE | Mechanical Specific Energy | | | | Details |
| MTBE | Methyl Tertiary Butyl Ether | | | | Details |
| MTBE | methyl tert-butyl ether | | | | Details |
| mtge | mortgage | | | | Details |
| mtoe | million tonnes oil equivalent | | | | Details |
| M-type | Conditional Median Estimate | | | | Details |
| Mvde | Mesa Verde | | | | Details |
| MVERT | Corrosion log from Baker Hughes | | | | Details |
| MWDRE | Measurement While Drilling Report | | | | Details |
| MWPE | mill wrapped plain end | | | | Details |
| n.E. | not East of | | | | Details |
| N.Y.K.Line | Nippon Yusen Kaisha | | | | Details |
| NACE | National Association of Corrosion Engineers | | | | Details |
| NACE | National Association of Corrosion | | | | Details |
| NAEP | National Association of Environmental Professionals | | | | Details |
| NAESB | North American Energy Standards Board | | | | Details |
| NAESCO | National Association of Energy Services Companies | | | | Details |
| NAFTEC | Refining subsidiary of SONATRACH Algeria | | | | Details |
| NATREF | National Petroleum Refiners of South Africa (Pty) Ltd. South Africa | | | | Details |
| NBE | National Bank of Egypt | | | | Details |
| NDE | Nondestructive Examination (See comment of NDT) | | | | Details |
| NDE | not deep enough | | | | Details |
| NE | NIUE | | | | Details |
| NE | NETHERLANDS | | | | Details |
| NE | NIGER | | | | Details |
| NE | Nebraska | | | | Details |
| ne | northeast | | | | Details |
| NE | nonemulsifying agent | | | | Details |
| ne/4 | northeast quarter | | | | Details |
| ne/c | northeast corner | | | | Details |
| NEA | nonemulsion acid | | | | Details |
| NEB | nation energy board for Canada | | | | Details |
| NEB | National Energy Board of Canada | | | | Details |
| NEB | National Energy Board (Canada) | | | | Details |
| NEBOSH | National Examination Board in Occupational Safety and Health (www.nebosh.com) | | | | Details |
| NEC | National Electric Code | | | | Details |
| NEC | national electric code (US) | | | | Details |
| NEC | northeast corner | | | | Details |
| NEDC | Near East Development Company | | | | Details |
| NEFR | Noise Exposure Frequency Rate | | | | Details |
| neg | negative | | | | Details |
| neg | negligible | | | | Details |
| NEGO | negotiation | | | | Details |
| NEI | National Emissions Inventory | | | | Details |
| NEL | northeast line | | | | Details |
| NELP | New Exploration and Licensing Polley | | | | Details |
| NEMA | National Electrical Manufacturers Association | | | | Details |
| NEMS | National Energy Modeling System, EIA | | | | Details |
| NEO | neoprene A ball covering and seal type | | | | Details |
| NEP | net effective pay | | | | Details |
| NEPA | National Environmental Policy Act | | | | Details |
| NEPA | National Environmental Policy Act of 1969 | | | | Details |
| Nepco | National Electricity and Power Company | | | | Details |
| NER | NIGER | | | | Details |
| NERC | North American Electric Reliability Corporation | | | | Details |
| NEREFCO | Netherlands Refining Co. Netherlands | | | | Details |
| Nesco | Naftgaran Engineering Services Company | | | | Details |
| NESHAP | national emissions standards for hazardous air pollutants | | | | Details |
| NESHAP | National Emission Standard for Hazardous Air Pollutants | | | | Details |
| NESHAPs | National Emission Standards for Hazardous Air Pollutants | | | | Details |
| NetBIOS | Network Basic Input Output System | | | | Details |
| NETG | Nordrheinische Erdgastransport GmbH Germany | | | | Details |
| NETL | National Energy Technology Laboratory | | | | Details |
| NETL | National Energy Technology Laboratory, DOE | | | | Details |
| NETRA | Norddeutsche Erdgas Transversale & Co. Germany | | | | Details |
| NEU | Neutron (Cased Hole) | | | | Details |
| NEU | Neutron (Open Hole) | | | | Details |
| NEU | Neutron Log | | | | Details |
| NEUT | Neutron Log | | | | Details |
| NEUT | neutron | | | | Details |
| neut | neutral neutralization | | | | Details |
| Neut. | No. Neutralization Number | | | | Details |
| Neutron | Ray | | | | Details |
| New | Alb New Albany shale | | | | Details |
| Newc | Newcastle | | | | Details |
| NFL/GR/NEU | Nuclear Flolog-Gamma Ray Neutron | | | | Details |
| NFL/NEU | Nuclear Flolog-Neutron | | | | Details |
| NGE | New Generation Expat | | | | Details |
| Nine | Ninnescah | | | | Details |
| NIOEC | National Iranian Oil Engineering and Construction Company | | | | Details |
| NLL/GR/NEU | Neutron Lifetime G/R-Neutron | | | | Details |
| NLL/NEU | Neutron Lifetime Neutron | | | | Details |
| NODE | Well Performance Simulation (NODES) | | | | Details |
| NOEL | no-observed-effect level | | | | Details |
| NOGEPA | Netherlands Oil & Gas Exploration & Production Assn. Netherlands | | | | Details |
| Nozzle | a shaped orifice for directing fluid flow | | | | Details |
| NPDES | Natural Pollution Discharge Elimination System | | | | Details |
| NPDES | National pollution discharge | | | | Details |
| NPDES | National Pollutant Discharge Elimination System | | | | Details |
| NPDES | National Pollution Discharge Elimination System | | | | Details |
| npne | neoprene | | | | Details |
| NRe | Reynold’s number | | | | Details |
| NREC | National Real Estate Company | | | | Details |
| NREL | National Renewable Energy Laboratory, a laboratory of the US Department of Energy | | | | Details |
| NSE | Noise Reduction | | | | Details |
| NSPE | National Society of Professional Engineers | | | | Details |
| NTEL | no-toxic-effect level | | | | Details |
| NUE | Non-Upset End (see comment!) | | | | Details |
| NUE | nonupset ends | | | | Details |
| NYDEC | New York State Department of Environmental Conservation | | | | Details |
| NYMEX | New York Mercantile Exchange | | | | Details |
| NYSE | New York Stock Exchange | | | | Details |
| O.E. | Ohne Ergebnis | Without success | | | Details |
| OAPEC | Organization of Arab Petroleum Countries | | | | Details |
| OAPEC | Organization of Arab Petroleum Exporting Countries | | | | Details |
| OAPEC | Organization of Arab Petroleum Exporting Countries (—) | | | | Details |
| OBEVA | OBDT Evaluation Report | | | | Details |
| OCENSA | Oleoducto Central S.A. Colombia | | | | Details |
| ODE | Ordinary Differential Equations | | | | Details |
| Odel | O’Dell | | | | Details |
| ODFE | Old Drill Floor Elevation | | | | Details |
| ODME | Oil Discharge Monitoring Equipment (transferring by ship) | | | | Details |
| OE | Open End | | | | Details |
| OE | Ohne Ergebnis | Without success | | | Details |
| OE | oil emulsion | | | | Details |
| OE | overexpenditure | | | | Details |
| OEA | Operaciones Especiales Argentinas Argentina | | | | Details |
| OEB | other end beveled | | | | Details |
| OEBPS | Open EBook Publication Structure | | | | Details |
| OECD | Organization for Economic Cooperation and Development | | | | Details |
| OECD | Organization of Economic Cooperation and Development | | | | Details |
| OECD | Organization for Economic Cooperation & Development | | | | Details |
| OEL | Occupational Exposure Limit | | | | Details |
| OEM | Original Equipment Manufacturer | | | | Details |
| OEM | oil emulsion mud | | | | Details |
| OeN | Public Communications Networks Group | | | | Details |
| OEP | Office of Emergency Preparedness | | | | Details |
| OEP | Organization for Energy Planning Egypt | | | | Details |
| OERB | Oklahoma Energy Resources Board | | | | Details |
| OES | Occupational Exposure Standard | | | | Details |
| OFOE | orfice flange one end | | | | Details |
| OIEC | Oil Industries Engineering Company | | | | Details |
| OIES | Oxford Institute for Energy Studies | | | | Details |
| OILINVEST | Intl. Arm of NOC Libya Libya | | | | Details |
| OILREC | OIL RECovery | | | | Details |
| OLADE | Organization Latinoamericana de Energia Ecuador | | | | Details |
| OLE | Object Linking and Embedding | | | | Details |
| ole | olefin | | | | Details |
| OLECASA | Oleoductos Canarios S.A. Spain | | | | Details |
| Onarep | Office National de Recherche et d’Exploitation Petrolière | | | | Details |
| ONAREP | Office National des Recherches et d’Exploitations Petrolieres (Moroccan National Oil Co.) Morocco | | | | Details |
| ONE | Office National d’Electricité | | | | Details |
| ONE | Oranje-Nassau Energie Netherlands | | | | Details |
| ONEPM | Oranje-Nassau Energy Participate Netherlands | | | | Details |
| OOE | Offshore Operation Engineer (senior technical authority on an offshore oil platform) | | | | Details |
| OPEC | Organization of Petroleum Exporting Countries | | | | Details |
| OPEC | Organization of the Petroleum Exporting Countries | | | | Details |
| OPEC | Organization of Petroleum Exporting Countries (1983 list | | | | Details |
| OPEC | Organization of Petroleum Exporting Countries (—) | | | | Details |
| OPECNA | OPEC News Agency OPEC | | | | Details |
| oper | operate, operations, operator | | | | Details |
| Operc | Operculinoides | | | | Details |
| OPEX | Operating Expenditure | | | | Details |
| OPEX | operation expenditures Generally repair or maintenance expenses | | | | Details |
| OPEX | Operatin& Expenditure | | | | Details |
| OPRES | Overpressure Log | | | | Details |
| Ore | a mineral deposit rich enough to be mined commercially | | | | Details |
| ORIENT | orientation | | | | Details |
| OTE | oil-powered total energy | | | | Details |
| overbend | High spot in a pipeline usually installed by field-bending a pipeline joint | | | | Details |
| P/E | Purchase Enquiry | | | | Details |
| PA system | Public Address system (see comment!) | | | | Details |
| Paleo | paleontology | | | | Details |
| Paleo | Paleozoic | | | | Details |
| PALTEL | Palestine Telecommunications Co. Plc | | | | Details |
| PARTEX | Participations & Exploration Corporation | | | | Details |
| Pave | Average Pressure | | | | Details |
| PBE | plain both ends | | | | Details |
| pble | pebble | | | | Details |
| PCE | Pressure Control Equipment (S/L or W/L PCE: lubricator, stuffinf box, …) | | | | Details |
| PCE | Pressure Control Equipment | | | | Details |
| PDES | Plot Destination | | | | Details |
| PDET | production department exploratory test | | | | Details |
| PE | Produktionseinheit | | | | Details |
| PE | Production Entity | | | | Details |
| PE | PERU | | | | Details |
| PE | Petroleum Engineer, Production Engineer or Professional Engineer | | | | Details |
| PE | Photoelectric | | | | Details |
| Pe | External Pressure (Pressure at external boundary in reservoir i.e. pressure at Drainage boundary re) | | | | Details |
| pe | pin end | | | | Details |
| PE | plain end | | | | Details |
| PE | pumping equipment | | | | Details |
| PEA | Palaeo Environment Study Report | | | | Details |
| PEB | plain end beveled | | | | Details |
| PEBI | Perpendicular Bisector (for simulation grids) | | | | Details |
| PEC | Production Enhancement Contract | | | | Details |
| PED | Petroleum Engineering & Development | | | | Details |
| PED | pedestal | | | | Details |
| Pedco | Petroleum Development Corporation | | | | Details |
| PEDEC | Petroleum Development and Engineering Company | | | | Details |
| PEDL | Petroleum Exploration and Development Licence (United Kingdom), introduced in the th Onshore Licensing Round | | | | Details |
| PEEK | Polyetheretherketone, (VictrexTM, ArlonTM) | | | | Details |
| PEF | Photoelectric Index | | | | Details |
| PEI | production efficiency improvement | | | | Details |
| PEI | Petroleum Equipment Institute | | | | Details |
| PEL | Petroleum Economics Limited | | | | Details |
| PEL | Permissible Exposure Limit (see comment) | | | | Details |
| PEL | Permissible Exposure Limit | | | | Details |
| PEL | Petroleum Exploration License | | | | Details |
| pell | pellletal, pelletoidal | | | | Details |
| PEM | Petroleum Engineering Manager | | | | Details |
| Pemex | Petroleos Mexicanos | | | | Details |
| PEMEX | Petroleos Mexicanos Mexico | | | | Details |
| PEN | Penetration | | | | Details |
| pen | penetration, penetration test | | | | Details |
| Pen | A.C. penetration asphalt cement | | | | Details |
| penal | penalty, penalize(ed)(ing) | | | | Details |
| PENL | Penetration Log | | | | Details |
| Penn | Pennsylvanian | | | | Details |
| PEP | PEP Log | | | | Details |
| PEP | Project Execution Plan | | | | Details |
| PEP | Provincial Emergency Program | | | | Details |
| PEP | Performance Enhancement Program | | | | Details |
| PEQUIVEN | Petroquimica de Venezuela Venezuela | | | | Details |
| PER | Perforation Run | | | | Details |
| PER | PERU | | | | Details |
| perco | percolation | | | | Details |
| PERDC | Perforation Depth Control | | | | Details |
| Perf | Perforation | | | | Details |
| PERF | Petroleum Environmental Research Forum | | | | Details |
| perf | perforate, perforated | | | | Details |
| PERF | Perforated Log | | | | Details |
| perf | perforate(ed)(ing)(or) | | | | Details |
| perf | csg perforated casing | | | | Details |
| PERFO | Perforation Log | | | | Details |
| PERI | Periscope | | | | Details |
| PERM | Permeability | | | | Details |
| perm | permeable, penneability | | | | Details |
| perm | penmeable, permeability | | | | Details |
| perm | permanent | | | | Details |
| perm | permeable(ability) | | | | Details |
| Perm | Permian | | | | Details |
| PERMAGO | Perforaciones Marinas del Golfo S.A. Mexico | | | | Details |
| PERML | Permeability Log | | | | Details |
| PermP | Permanent-Packer | | | | Details |
| perp | perpendicular | | | | Details |
| pers | personnel | | | | Details |
| PERSERO | PT Perusahaan Gas Negara Indonesia | | | | Details |
| PERT | performance evaluation and review technique | | | | Details |
| PERTAMINA | Perusahaan Pertambangan Minyak dan Gas Bumi Negara (Indonesian State Oil and Gas Enterprise) Indonesia | | | | Details |
| PERUPETRO | Peru Petro S.A. Peru | | | | Details |
| PES | production engineering supervisor | | | | Details |
| PESA | Petroleum Equipment Suppliers Association | | | | Details |
| PESBG | Petroleum Exploration Society of Great Britain | | | | Details |
| PESGB | Petroleum Exploration Society of Great Britain UK | | | | Details |
| PESS | Petroleum Engineering Summer School | | | | Details |
| Pet | Petroleum | | | | Details |
| Pet | Pettet | | | | Details |
| Pet | sd Pettus sand | | | | Details |
| PETA | Petrographical Analysis Report | | | | Details |
| PETCO | Petroleum Corporation of Texas | | | | Details |
| PETD | Petrographic Data Log | | | | Details |
| PETLG | Petrophysical Evaluation Log | | | | Details |
| PETN | a low temperature explosive used in perforating charges | | | | Details |
| PETPM | Petrography Permeametry Report | | | | Details |
| PETRESA | Petroquimica Espanola, S.A. Spain | | | | Details |
| petrf | petroliferous | | | | Details |
| PETROBANGLA | Bangladesh Oil, Gas & Mineral Corporation Bangladesh | | | | Details |
| Petrobel | Belayim Petroleum Company | | | | Details |
| PETROBEL | Belayim Petroleum Co. Egypt | | | | Details |
| PETROBRAS | Petroleo Brasileiro, S.A. Brazil | | | | Details |
| PETROCAN | Petroleos de Canarias Spain | | | | Details |
| petrochem | petrochemical | | | | Details |
| PETROCI | Societe Nationale d’Operations Petrolieres de la Cote d’Ivoire Cote d’Ivoire | | | | Details |
| PETRO-COMMERCIAL | Empresa Estatal de Commercializacion y Transporte de Petroles del Ecuador Ecuador | | | | Details |
| PETRO-ECUADOR | Petroleos de Ecuador Ecuador | | | | Details |
| PetroFinance | Petroleum Finance Company | | | | Details |
| PETROGAB | Societe Nationale Petroliere -PETROGAB Gabon | | | | Details |
| PETROGAL | Petroleos de Portugal Portugal | | | | Details |
| PETROGAS | Petroleum Gas Co. Egypt | | | | Details |
| PETROGUIN | National Petroleum Co. of Guinea-Bissau (formerly PETROMINAS) Guinea-Bissau | | | | Details |
| PETRO-INDUSTRIAL | Empresa Estatal de Industrializacion de Petroles del Ecuador Ecuador | | | | Details |
| PETROJAM | Petroleum Corporation of Jamaica Jamaica | | | | Details |
| PETROJET | Petroleum Projects and Technical Consultations Co. Egypt | | | | Details |
| Petrokemya | Arabian Petrochemical Company | | | | Details |
| PETROKEMYA | Arabian Petrochemical Co. Saudi Arabia | | | | Details |
| PETROL | Petrol, A Slovene Oil Company Slovenia | | | | Details |
| PETROM | Petrom RA Romania | | | | Details |
| PETROMED | Petroleos del Mediterraneo Spain | | | | Details |
| PETROMIN | General Petroleum and Mineral Organization Saudi Arabia | | | | Details |
| PETROMINAS | Empresa Nacional de Pesquisa e Exploracao Petroliferas e Mineras EP (now PETROGUIN) Guinea-Bissau | | | | Details |
| PETROMOC | Empresa Nacional Petroles de Moçambique Mozambique | | | | Details |
| PETRON | Petron Corporation (PNOC/Saudi Aramco partnership) Philippines | | | | Details |
| PETRONAS | Petroliam Nasional Bhd. Malaysia | | | | Details |
| PETRONET | Petronet India ltd. India | | | | Details |
| PETRONIC | Empresa Nicaraguense del Petroleo Nicaragua | | | | Details |
| PETRONOR | Petroleos del Norte, S.A. Spain | | | | Details |
| PETROPAR | Petroleos Paraguayos Paraguay | | | | Details |
| PETROPERU | Petroleos del Peru Peru | | | | Details |
| PETRO-PRODUCTION | Empresa Estatal de Exploration y Produccion de Petroleos del Ecuador Ecuador | | | | Details |
| PETROQUISA | Petrobras Quimica S.A. Brazil | | | | Details |
| PETROREP | Societe Petroliere de Recherches Dans La Region Parisienne France | | | | Details |
| PETROSEN | Societe Nationale des Petroles du Senegal Senegal | | | | Details |
| PETROSUR | Petroleos del Sur S.A. Spain | | | | Details |
| PETROTRIN | Petroleum Company of Trinidad & Tobago Ltd. Trinidad & Togago | | | | Details |
| PETRO-Vietnam | Oil and Gas Company Vietnam VIETNAM | | | | Details |
| PETROZAIRE | Entreprise Petroliere du Zaire Zaire | | | | Details |
| PETRP | Petrophysical Evaluation Report | | | | Details |
| PETSOC | Petroleum Society of the Canadian Institute of Mining, Metallurgy and Petroleum | | | | Details |
| Pett | Pettit | | | | Details |
| PEV | plug-in electric vehicles | | | | Details |
| PEW | pipe electric weld | | | | Details |
| PEX | Platform Express (SLB tool -> CNL+TLD+MCFL) | | | | Details |
| PFE | Plate/Frame Heat Exchanger | | | | Details |
| PFHE | Plate Fin Heat Exchanger | | | | Details |
| PFREC | Perforation Record Log | | | | Details |
| PHASE | Phasor Processing Log | | | | Details |
| PIDEC | Petrochemical Industries and Engineering Company | | | | Details |
| PIEA | Petroleum Industry Electrical Association | | | | Details |
| Pipe | Coating Terminology and Definitions | | | | Details |
| Pixel | Picture Element | | | | Details |
| PLE | plain large end | | | | Details |
| Pleist | Pleistocene | | | | Details |
| PLEM | Pipeline End Manifold | | | | Details |
| PLES | Pipeline End Structure | | | | Details |
| PLET | PipeLine End Termination (AKA FLET) | | | | Details |
| PLTRE | Production Logging Tool Report | | | | Details |
| pneu | pneumatic | | | | Details |
| PoE | Plan of Exploration | | | | Details |
| POE | polyoxyethylenated – a common surfactant group | | | | Details |
| POE | plain one end | | | | Details |
| PORMINER | Promotora de Minmercados S.A. Spain | | | | Details |
| POSWE | Post Well Summary Report | | | | Details |
| POT (able) | POTable water | | | | Details |
| POWERS | Parallel Oil Water and Gas Reservoir Simulator | | | | Details |
| PPE | Personal Protective Equipment | | | | Details |
| PPE | Preferred Pressure End | | | | Details |
| Pr Temp | Precision Temperature | | | | Details |
| PRC NEU | PFC Neutron | | | | Details |
| PRE | pitting resistance equivalent number | | | | Details |
| Pre | Camb Precambrian | | | | Details |
| PREC | Perforation Record | | | | Details |
| PRECIP | precipitator | | | | Details |
| predom | predominant | | | | Details |
| prefab | prefabricated | | | | Details |
| prehtr | preheater | | | | Details |
| prelim | preliminary | | | | Details |
| prem | premium | | | | Details |
| prep | preparing | | | | Details |
| Prep | prepare, preparing, preparation | | | | Details |
| Pres | Reservoir Pressure | | | | Details |
| PRESS | Pressure Report | | | | Details |
| press | pressure | | | | Details |
| prest | prestressed | | | | Details |
| prev | prevent, preventive | | | | Details |
| PREV | previous | | | | Details |
| PREV | DA previous daily average | | | | Details |
| PRODESA | Productos de Estireno, S.A. de C.V. Mexico | | | | Details |
| PROPEL | Produtos de Petroleo Lda. Portugal | | | | Details |
| PROTE | Production Test Report | | | | Details |
| Protero | Proterozoic | | | | Details |
| PROTEXA | Construcciones Protexa, S.A. de C.V. Mexico | | | | Details |
| PRSRE | Pressure Gauge Report | | | | Details |
| PSE | Process Safety Event | | | | Details |
| PSE | PALESTINIAN TERRITORY, OCCUPIED | | | | Details |
| PSE | plain small end | | | | Details |
| PTE | Principle Technicl Expert (Shell term) | | | | Details |
| PTFE | Polytetrafluoroethylene, (eg, TEFLONTM ) | | | | Details |
| PTSET | Production Test Setter | | | | Details |
| PTTEP | PTT Exploration & Production Public Co. Ltd. Thailand | | | | Details |
| PTTEPI | PTTEP International Ltd. Thailand | | | | Details |
| PTTEPO | PTTEP Offshore Investment Co. Ltd. Thailand | | | | Details |
| PUWER | Provision and Use of Work Equipment Regulations | | | | Details |
| PVTRE | Pressure Volume Temperature Report | | | | Details |
| PWE | Practise Worth Eradicating (Dario Frigo phrase) | | | | Details |
| Q-Chem | Qatar Chemical Complex | | | | Details |
| Q-CHEM | Qatar Chemical Corp. Qatar | | | | Details |
| QEWC | Qatar Electricity and Water Company | | | | Details |
| QRE | Qualified Reservoir Engineer | | | | Details |
| qte | quote | | | | Details |
| Q-Tel | Qatar Public Telecommunications Corporation | | | | Details |
| QTHERM | Queensland Department of Energy Australia | | | | Details |
| qtzose | quartzose | | | | Details |
| quest | questionable | | | | Details |
| RADEEC | Regie Autonome Intercommunal de Distribution d’Eau et d’Electricité de la Chaouia | | | | Details |
| RASHPETC | Rashed Oil Company Egypt and others | | | | Details |
| RE | Reply | | | | Details |
| RE | Reference (in letter writting) | | | | Details |
| RE | Reservoir Engineer | | | | Details |
| re | Drainage Radius in equations | | | | Details |
| RE | REUNION | | | | Details |
| re | reservoir drainage radius | | | | Details |
| REA | Ream | | | | Details |
| REABS | reabsorber | | | | Details |
| reacd | reacidize(ed)(ing) | | | | Details |
| React | reaction(ed) | | | | Details |
| rebar | reinforcing bar | | | | Details |
| REC | Recommendation | | | | Details |
| rec | recovered | | | | Details |
| rec | recommend | | | | Details |
| rec | record(er)(ing) | | | | Details |
| rec | recover(ed)(ing), recovery | | | | Details |
| recd | received | | | | Details |
| RECIP | reciprocate | | | | Details |
| recip | reciprocate(ing) | | | | Details |
| recirc | recirculate | | | | Details |
| recomp | recomplete(ed)(ion) | | | | Details |
| RECOMP | recompressor | | | | Details |
| recond | recondition(ed) | | | | Details |
| recp | receptacle | | | | Details |
| rect | rectangle, rectangular | | | | Details |
| rect | rectifier | | | | Details |
| recy | recycle | | | | Details |
| RED | restriction enhancement drill (under reamer) | | | | Details |
| red | reducing, reducer | | | | Details |
| red | bal reducing balance | | | | Details |
| redrld | redrilled | | | | Details |
| REEF | Refrigerated | | | | Details |
| ref | reference | | | | Details |
| ref | refine(ed)(er)(ry) | | | | Details |
| REFCO | Abu Dhabi Refining Company | | | | Details |
| refg | refining | | | | Details |
| refl | reflection | | | | Details |
| refl | reflux | | | | Details |
| REFMR | reformer | | | | Details |
| REFOO | re-evaluation for overoptimism | | | | Details |
| reform | reformate(er)(ing) | | | | Details |
| REFR | Refracture | | | | Details |
| refr | refraction, refractory | | | | Details |
| REFRIG | refrigerator(rant)(tion) | | | | Details |
| reg | register | | | | Details |
| reg | regular, regulator | | | | Details |
| REGANOSA | Regasification subsidiary of SONATRACH Algeria | | | | Details |
| regen | regenerator | | | | Details |
| reinf | reinforce(ed)(ing)(ment) | | | | Details |
| reinf | conc reinforced concrete | | | | Details |
| rej | reject | | | | Details |
| rej’n | rejection | | | | Details |
| Rek | Reklaw | | | | Details |
| rel | relay | | | | Details |
| rel | release(ed) | | | | Details |
| REL | running electric log | | | | Details |
| reloc | relocate(ed) | | | | Details |
| rem | remains | | | | Details |
| rem | remedial | | | | Details |
| Ren | Renault | | | | Details |
| rent | rental | | | | Details |
| Reo. | bath. Reophax bathysiphoni | | | | Details |
| REOR | Reorientation Log | | | | Details |
| rep | repair(ed)(ing)(s) | | | | Details |
| rep | replace(ed) | | | | Details |
| rep | report | | | | Details |
| REPE | Re-Perforation Report | | | | Details |
| RE-PE | Re-Perforation Report | | | | Details |
| REPEAT | Reservoir Engineering Prospect Evaluation Automated Tool (Shell Houston software) | | | | Details |
| reperf | reperforate | | | | Details |
| reperf | reperforated | | | | Details |
| repl | replace(ment) | | | | Details |
| REPSOL | Repsol S.A. (formerly “Hispanoil”)(see Repsol-YPF) Spain | | | | Details |
| REPSOL-YPF | Former Hispanoil (Spain) & YPF (Argentina) Spain | | | | Details |
| REQ | request | | | | Details |
| req | requisition | | | | Details |
| reqd | required | | | | Details |
| reqmt | requirement | | | | Details |
| RES | Reservoir | | | | Details |
| res | resistivity | | | | Details |
| res | research | | | | Details |
| res | reserve(ation) | | | | Details |
| res | resistance, resistivity, resistor | | | | Details |
| Res. | O. N. Research Octane Number | | | | Details |
| RESAN | Reservoir Analysis | | | | Details |
| RESEV | Reservoir Evaluation | | | | Details |
| RESFL | Reservoir Fluid | | | | Details |
| RESI | Resistivity Log | | | | Details |
| resid | residual, residue | | | | Details |
| RESIS | resistor(s) | | | | Details |
| RESISA | Resinas Sinteticas S.A. Spain | | | | Details |
| RESL | Reservoir Log | | | | Details |
| RESOI | Residual Oil | | | | Details |
| ret | retainer | | | | Details |
| ret | retain(er)(ed)(ing) | | | | Details |
| ret | return | | | | Details |
| Ret DST | Retainer Dichtstück | | | | Details |
| Ret. | Retainer | | | | Details |
| retd | returned | | | | Details |
| RetDST | Retainer Dichtstock | | | | Details |
| retr | retrievable | | | | Details |
| retr | ret retrievable retainer | | | | Details |
| RETV | Retainer Valve | | | | Details |
| REU | REUNION | | | | Details |
| REV | reverse | | | | Details |
| rev | reverse (ed) (ing) | | | | Details |
| rev | reverse(ed) | | | | Details |
| rev | revise(ed)(ing)(ion) | | | | Details |
| rev | revolution(s) | | | | Details |
| rev out | reverse out | | | | Details |
| rev/O | reversed out | | | | Details |
| REZ | Renewable Energy Zone (United Kingdom) | | | | Details |
| RFFE | raised face, flanged end | | | | Details |
| RFTRE | Repeat Formation Tester Report | | | | Details |
| RGE | RanGE | | | | Details |
| rheo | rheostat | | | | Details |
| Rier | Rierdon rig | | | | Details |
| RJFE | ring joint, flanged end | | | | Details |
| ROACE | Return on Average Capital Employed | | | | Details |
| ROCE | Return on capital employed (same as ROACE, See ROACE) | | | | Details |
| ROCE | return on capital employed | | | | Details |
| ROE | Radius of Exposure | | | | Details |
| ROPE | really overbalanced perforating, see EOP or extreme overbalanced perforating | | | | Details |
| ROPME | Regional Organization for Protection of Marine Environment | | | | Details |
| ROSKO-MNEDRA | Ministry of Fuel & Energy for the Russian Federation Russia | | | | Details |
| RPE | Respiratory Protective Equipment | | | | Details |
| RRE | Rig Repair | | | | Details |
| RSE | Rig Service | | | | Details |
| RTE | Rotary Table Elevation (height of the RT from the GL) | | | | Details |
| RTECS | Registry of Toxic Effects of Chemical Substances | | | | Details |
| RTEP | Real Terms Earnings Power | | | | Details |
| RWE-DEA | RWE(Rheinische-Westfalische Electrzitatwerk AG)-DEA AG fur Mineraloel und Chimie Germany | | | | Details |
| S/E | screwed end | | | | Details |
| Sace | State Export and Guarantee and Insurance Company | | | | Details |
| SAE | Society of Automotive Engineers | | | | Details |
| SAFE | Slapper Activated Firing Equipment | | | | Details |
| SAFE | surface approximation and | | | | Details |
| SAGE | Scottish Area Gas Evacuation Pipeline System UK | | | | Details |
| Samarec | Saudi Arabian Marketing and Refining Company | | | | Details |
| Samref | Saudi Aramco-Mobil Yanbu Refinery Company | | | | Details |
| SAMREF | Saudi Aramco Mobil Refinery Co. Ltd. Saudi Arabia | | | | Details |
| Sasref | Saudi Aramco Shell Refining Company | | | | Details |
| SASREF | Saudi Aramco Shell Refinery Co. Saudi Arabia | | | | Details |
| SATSHEX | SATurdays, Sundays, Holidays Excepted | | | | Details |
| SCDES | Sidewall Core Description | | | | Details |
| SCE | Soldis control equipment | | | | Details |
| SCE | Safety Critical Elements | | | | Details |
| SCE | Perforating-Expendable Shaped Charge | | | | Details |
| SCE-CC | Casing Cutter Service | | | | Details |
| Sceco | Saudi Consolidated Electric Company | | | | Details |
| SCECO | Saudi Consolidated Electrical Company | | | | Details |
| schem | schematic | | | | Details |
| Scholle | Block (a compartment of reservoir) Geology, | | | | Details |
| SDE | Senior Drilling Engineer | | | | Details |
| SDE | Supervising Drilling Engineer | | | | Details |
| SE | South East | | | | Details |
| SE | Stakeholder Engagement | | | | Details |
| SE | SEYCHELLES | | | | Details |
| SE | SWEDEN | | | | Details |
| Se | selenium | | | | Details |
| se | southeast | | | | Details |
| SE | Structural Exploration | | | | Details |
| SE | No. steam emulsion number | | | | Details |
| SE | NTP screw end American National | | | | Details |
| SE NA | screw end American National Acme thread | | | | Details |
| SE NC | screw end American National Coarse thread | | | | Details |
| se/4 | southeast quarter | | | | Details |
| se/c | southeast corner | | | | Details |
| SEA | Strategic Environmental Assessment (United Kingdom) | | | | Details |
| Sea | Seabreeze | | | | Details |
| Seapa | Saudi Ports Authority | | | | Details |
| SEC | Securities and Exchange Commission | | | | Details |
| SEC | Securities Exchange Commission | | | | Details |
| sec | section | | | | Details |
| sec | secant | | | | Details |
| sec | second(ary) | | | | Details |
| sec | secretary | | | | Details |
| SECA | Societe Europeenne des Carburants Belgium | | | | Details |
| SEC-CC | Tubing, Cutter Service | | | | Details |
| SECGU | Section Gauge Log | | | | Details |
| SECT | section(s)(al)(ing) | | | | Details |
| SECWA | State Energy Commission of Western Australia Australia | | | | Details |
| Sed | Sediment | | | | Details |
| SED | Six Electrode Dipmeter | | | | Details |
| SED | Six Arm Dipmeter | | | | Details |
| sed | sediment ( s ) | | | | Details |
| sed | sediment(s) | | | | Details |
| SEDAR | System for Electronic Document Analysis and Retrieval | | | | Details |
| SEDHI | Sedimentary History | | | | Details |
| SEDIGAS | Sociedad para el Estudio y Desarrallo de la Industria del Gas S.A. Spain | | | | Details |
| SEDIM | Sedimentology | | | | Details |
| SEDL | Sedimentology Log | | | | Details |
| SEDRE | Sedimentology REport | | | | Details |
| Sedw | Sedwick | | | | Details |
| SEE | Society of Explorationists in the Emirates | | | | Details |
| SEG | Society of Exploration Geophysicists | | | | Details |
| SEG | segment | | | | Details |
| SEI | Safety Effective Indicators | | | | Details |
| seis | SelSIUlC | | | | Details |
| seis | seismograph, seismic | | | | Details |
| sel | selenite | | | | Details |
| Sel | Selma | | | | Details |
| SELECT | selection(tive)(tor) | | | | Details |
| SELFDISCH | SelfDischarger | | | | Details |
| SELV | Safety Extra Low Voltage | | | | Details |
| SEM | Subsea Electronics Module | | | | Details |
| SEM | Scanning Electron Mycroscope | | | | Details |
| SEM | Scanning Electron Microscope | | | | Details |
| Semi (or Semi-Sub) | Semi-Submersible Drilling Rig | | | | Details |
| SEN | SENEGAL | | | | Details |
| Sen | Senora | | | | Details |
| SEO | seal oil | | | | Details |
| SEP | Separator | | | | Details |
| SEP | separate, separator, separation | | | | Details |
| SEPA | Single Euro Payment Area | | | | Details |
| SEPAC | Small Explorers and Producers Association of Canada | | | | Details |
| SEPAR | Separator Sampling Report | | | | Details |
| SEPIL | Shell Exploration and Production, Ireland | | | | Details |
| SEPM | Society of Economic Paleontologists and Mineralogists | | | | Details |
| sept | septuplicate | | | | Details |
| seq | sequence | | | | Details |
| SEQSU | Sequential Survey | | | | Details |
| ser | series, serial | | | | Details |
| SEREPCA | Societe Elf de Recherches et d’Exploitation des Petroles au Cameroun Cameroon | | | | Details |
| Serp | serpentine | | | | Details |
| Serr | Serratt | | | | Details |
| serv | service(s) | | | | Details |
| serv | chg service charge | | | | Details |
| SERVICES | SCHLUMBERGER WELL | | | | Details |
| SES | Service Entry Sheet | | | | Details |
| SES | Side Entry Sub (for RIH wireline inTLC mode to pass the cable) | | | | Details |
| SESD | Subsea Emergency Shut Down | | | | Details |
| SET | Solid Expandable Tubing | | | | Details |
| SET | Syrian Telecommunications Establishment | | | | Details |
| set | settling | | | | Details |
| SETG | Suddeutsche Erdgastransport GmbH Germany | | | | Details |
| sew | sewer | | | | Details |
| SEWOP | self-elevating work platform | | | | Details |
| Sex | sexton | | | | Details |
| sext | sextuplicate, sextuplet | | | | Details |
| SFER | Santa Fe Energy Resources, Inc. | | | | Details |
| SFERAE | Global Association for the use of knowledge on Fractured Rock in a state of Stress, in the field of Energy, Culture and Environment | | | | Details |
| SHELL | Royal Dutch/Shell Group Netherlands/UK | | | | Details |
| SHELL IS | Shell Internal Standard | | | | Details |
| SHEX | Sundays, Holidays EXcepted | | | | Details |
| Sibneft | Siberian Oil | | | | Details |
| Sidpec | Sidi Kerir Petrochemicals Company | | | | Details |
| SIEP | Shell International Exploration & Production | | | | Details |
| SINOPEC | Chinese Petroleum and Chemical CorporationChina | | | | Details |
| SIPES | Soceity of Independent Professional Earth Scientists, United States | | | | Details |
| SIPETROL | Sociedad Internacional Petrolera S.A. Chile | | | | Details |
| SLE | SIERRA LEONE | | | | Details |
| SME | Subject Matter Experts | | | | Details |
| SMENET | Society for Mining, Metallurgy & Exploration | | | | Details |
| SNAME | Society of Naval Architects and Marine Engineers | | | | Details |
| SNEPCo | Shell Nigeria Exploration and Production Company | | | | Details |
| SOCDET | Sydney Oil Co. Drilling & Exploration Australia | | | | Details |
| SOE | Sequence Of Events | | | | Details |
| SOE | screwed on one end | | | | Details |
| SONELGAZ | Societe Nationale d’Electricite et du Gaz Algeria | | | | Details |
| SONIDEP | Societe Nigerienne de Produits Petroliers Niger | | | | Details |
| SONPETROL | Sondeos Petroliferos, S.A. Spain | | | | Details |
| SONRE | Sonic Calibration Report | | | | Details |
| SOPEP | Shipboard oil pollution emergency plan | | | | Details |
| SOTETEL | Société Tunisienne d’Entreprises de Télécommunications | | | | Details |
| SPE | SP Extender | | | | Details |
| SPE | Society of Petroleum Engineers | | | | Details |
| SPE | Society of Petroleum Engineers of AIME | | | | Details |
| SPE AB | Svenska Petroleum Exploration AB Sweden | | | | Details |
| SPEAN | Spectral Analysis | | | | Details |
| spec | specification | | | | Details |
| speck | speckled | | | | Details |
| SpectraS | SpectraScan - spectral gamma ray | | | | Details |
| Spectrum | A Function of Frequency | | | | Details |
| SPeD | Spectral Pe Density | | | | Details |
| SPEE | Society of Petroleum Evaluation Engineers | | | | Details |
| SPEL | Spectralog | | | | Details |
| SPEZ | Sepcial Petrochemical Economic Zone | | | | Details |
| Sphaer | Sphaerodina | | | | Details |
| spletp | Spindletop | | | | Details |
| SPLSE | Societe du Pipe-Line Sud Europeen France | | | | Details |
| SREC | Seismic Record Log | | | | Details |
| SRME | Surface-Related Multiple Attenuation | | | | Details |
| SSE | Short Service Employee (percentage - see comment) | | | | Details |
| SSE | Sum of Squares of Error (equal to sum of square residuals) | | | | Details |
| SSEWR-P4 | SuperSlim EWR-Phase 4 | | | | Details |
| SSHEX | Saturdays, Sundays, Holidays EXcepted | | | | Details |
| STAATSOLIE | Staatsolie Maatschappij Suriname NV (State Oil Co. Suriname NV) Suriname | | | | Details |
| State | pot state potential | | | | Details |
| STE | Surface Test Equipment | | | | Details |
| STE | Steam | | | | Details |
| STEG | Société Tunisienne de l’Electricité et de Gaz | | | | Details |
| STEG | Societe Tunisienne d’Electricite et de Gaz Tunisia | | | | Details |
| STEL | Short-term exposure limit (see comment) | | | | Details |
| STEL | Short Term Exposure Limit | | | | Details |
| Stel | Steele | | | | Details |
| STEM | Subject To Enough Merchandise | | | | Details |
| steno | stenographer | | | | Details |
| Stens | Stensvad | | | | Details |
| STEP | Shell Technology Exploration & Production | | | | Details |
| STERPP | storage tank emission reduction partnership program (72 FR 19891) | | | | Details |
| STETHO | Stethoscope | | | | Details |
| Straddle | Doppel-Packer Anordnung | | | | Details |
| STRONGER | State Review of Oil and Natural Gas Environmental Regulation, Inc | | | | Details |
| STRONGER | State Review of Oil and Natural Gas Environmental Regulations | | | | Details |
| STRRE | Stratigraphy Report | | | | Details |
| SUKEP | Shell UK Exploration and Production Limited | | | | Details |
| SUMED | Arab Petroleum Pipelines Co. Egypt & others | | | | Details |
| SUMRE | Summary Report | | | | Details |
| SURRE | Survey Report | | | | Details |
| SWE | Senior Well Engineer | | | | Details |
| SWE | SWEDEN | | | | Details |
| Swet | sweetening | | | | Details |
| SWHE | Spiral Wound Heat Exchanger | | | | Details |
| SYNRE | Synthetic Seismic Report | | | | Details |
| SYSEI | Synthetic Seismogram Log | | | | Details |
| T&OE | Technical & Operational Excellence | | | | Details |
| Tahseen | National Fuel Additive Company | | | | Details |
| TAME | tert-amyl methyl ether | | | | Details |
| Taper | Pipe thread | | | | Details |
| Tapline | Trans-Arabian Pipeline or Trans-Arabian Pipe Line Company | | | | Details |
| TAPVE | Tape Verification | | | | Details |
| TATNEFT | Tatneft Tatarstan, Russia | | | | Details |
| TBE | Technical Bid Evaluation | | | | Details |
| TBE | threaded both ends | | | | Details |
| tce | tonne of coal equivalent | | | | Details |
| TCFe | TCFe: trillion cubic feet equivalent | | | | Details |
| TE | Technical Evaluation | | | | Details |
| TE | Testing Engineer | | | | Details |
| TE | TROMELIN ISLAND | | | | Details |
| TE | temporary | | | | Details |
| TEAM | Topaz Energy and Marine | | | | Details |
| TEC | Tubing Encapsulated Conductor (smart kit electrical umbilical) | | | | Details |
| tech | technical, technician | | | | Details |
| TECHINT | Compania Technica Internacional Brazil | | | | Details |
| Technical | Information Service | | | | Details |
| TECOP | Technical Economic Commercial Organizational Politico Societal | | | | Details |
| TEFC | Totally Enclosed Fan Cooled | | | | Details |
| TEFC | totally enclosed, fan cooled | | | | Details |
| TEG | Tri-Ethylene Glycol | | | | Details |
| TEG | Thermal Electric Generator | | | | Details |
| TEG | triethylene glycol | | | | Details |
| TEGC | Thermal Expansion Gas Chromatograph | | | | Details |
| TEL | tubing end locator | | | | Details |
| tel | telephone, telegraph | | | | Details |
| TEL | tetraethyl lead | | | | Details |
| Tel | Cr Telegraph Creek | | | | Details |
| TELE | Telescope | | | | Details |
| TELER | Teledrift Report | | | | Details |
| TEM | Technical Evaluation Meeting | | | | Details |
| TEMA | Tubular Exchange Manufacturers Association | | | | Details |
| TEMP | Temperature Log | | | | Details |
| temp | temporary, temporarily | | | | Details |
| temp | temporary | | | | Details |
| Temp | temperature | | | | Details |
| temp | temporary(ily) | | | | Details |
| TEMP | Temperature Differential | | | | Details |
| TEMP | Differential Temperature Log | | | | Details |
| TEMP/GR | Temperature Log-Gamma Ray | | | | Details |
| TEMP/NEU | Temperature-Neutron | | | | Details |
| TEMPSC | Totally Enclosed Motor Propelled Survival Survival Craft | | | | Details |
| TEMs | Technical Evaluation Meetings | | | | Details |
| TEN | Tension | | | | Details |
| TENP | Trans Europa Naturgas Pipeline GmbH Germany | | | | Details |
| TENR | Technologically Enhanced Natural Radiation | | | | Details |
| Tens | Tensleep | | | | Details |
| tens | str tensile strength | | | | Details |
| Tent | tentaculites | | | | Details |
| tent | tentative | | | | Details |
| TEOR | thermal enhanced oil recovery | | | | Details |
| TEOTWAWKI | The End of the World as We Know It (and I feel fine) | | | | Details |
| Tepco | Tokyo Electric Power Company | | | | Details |
| TEPSA | Terminales Portuadias S.A. Spain | | | | Details |
| TEQ | TROMELIN ISLAND | | | | Details |
| Ter | tertiary | | | | Details |
| termin | terminate(ed)(ing)(ion) | | | | Details |
| TETCO | Texas Eastern Transmission Corp. | | | | Details |
| TEU | Standard 20' container | | | | Details |
| tex | texture | | | | Details |
| Tex | Texana | | | | Details |
| TEXSPAIN | Texaco (Spain) Inc. Spain | | | | Details |
| Text. | art. Textularia articulate | | | | Details |
| Text. | d. Textularia dibollensis | | | | Details |
| Text. | h. Textularia hockleyensis | | | | Details |
| Text. | w. Textularia warreni | | | | Details |
| TFE | TotalFinaElf (obsolete Now Total S.A.) major French multinational oil company | | | | Details |
| TFE | Total, Final, Elf | | | | Details |
| THE | Tubing Handling Equipment | | | | Details |
| Ther | Thermopolis | | | | Details |
| THERM | Thermometer Log | | | | Details |
| Therm | a measure of heat content, where one therm = 100,000 btus | | | | Details |
| therm | thermometer | | | | Details |
| therm | ckr thermal crack | | | | Details |
| therst | thermostat | | | | Details |
| Thief | to remove a sample from a tank for analysis | | | | Details |
| THSE | Technical HSE | | | | Details |
| TIE | Tie In Log | | | | Details |
| TIEBK | Tieback Report | | | | Details |
| TIME | Time Log | | | | Details |
| TIOGE | Turkmenistan International Oil and Gas Conference | | | | Details |
| tite | tight | | | | Details |
| TL TEMP | Temperature Log | | | | Details |
| TLE | thread large end | | | | Details |
| TLSE | Technical Limit Specific Energy | | | | Details |
| TOBE | thread on both ends | | | | Details |
| TOBENA | To Be Named | | | | Details |
| toe | Tons of Oil Equivalent | | | | Details |
| TOE | Target Of Evaluation | | | | Details |
| TOE | threaded one end | | | | Details |
| TOEFL | Test for English as a Foreign Language | | | | Details |
| TPERF | Tool Performance | | | | Details |
| TRACECA | The Transport Corridor Europe-Caucasus-Asia | | | | Details |
| TransMed | Trans-Mediterranean Pipeline Company | | | | Details |
| TRANSMED | Transmediterranean Pipeline Co. Ltd. (also TNPC) Algeria | | | | Details |
| TREAT | Treatment Report | | | | Details |
| Tremp | Teremplealeau | | | | Details |
| Tren | Trenton | | | | Details |
| TREP | Test Report | | | | Details |
| Tres | Reservoir Temperature | | | | Details |
| TRL/NEU | Tracer Log-Neutron | | | | Details |
| TSE | thread small end | | | | Details |
| TSE-WLE | thread small end, weld large end | | | | Details |
| tste | taste | | | | Details |
| TTEM | TTRM Sub Temperature | | | | Details |
| TTEN | TTRM Sub Tension | | | | Details |
| tube turn | Prefabricated piece of pipeline (allows change of direction of a pipeline without field bending the pipeline) | | | | Details |
| TVELD | Time and Velocity to Depth | | | | Details |
| UAE | United Arab Emirates (Abu Dhabi, Dubai, Sharjah, Ajman, Umm Al-Qaiwain, Ras Al-Khaimah, Fujairah) | | | | Details |
| UAE | United Arab Emirates | | | | Details |
| UAEU | United Arab Emirates University | | | | Details |
| UASE | Union of Arab Stock Exchanges | | | | Details |
| UBIRE | Ultrasonic Borehole Imager Report | | | | Details |
| UEL | Upper Explosive Limit (highest level of gas in air which will explode upon ignition. Above UEL, the mixture is too rich to burn - No O2 enough) | | | | Details |
| UELN | United European Levelling Net | | | | Details |
| UIE | Union Industrielle et d’Entreprise France | | | | Details |
| ULSE | Ultralong Spacing Electric Log | | | | Details |
| ULSE | Ultra 2.M. Spacing | | | | Details |
| ULSEL | Ultralong Spacing Electric Log | | | | Details |
| UNEP | United Nations Environment Programme | | | | Details |
| UNESCO | United Nations Educational, Scientific and Cultural Organization | | | | 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 |
| USE | Union Securities Emirates | | | | Details |
| USEPA | U.S. Environmental Protection Agency | | | | Details |
| USExim | US Export-Import Bank | | | | Details |
| Valve | any of several valves | | | | Details |
| VAPEX | vapor assisted petroleum extraction | | | | Details |
| VDENL | Variation Density Log | | | | Details |
| VE | Vertical Equilibrium | | | | Details |
| VE | VENEZUELA | | | | Details |
| VEBA | Veba Oel Germany | | | | Details |
| VEDA | Viscoelastic Diverting Agent (used to divert acid in stimulations) | | | | Details |
| Vee door | Vee door | | | | Details |
| VEG | VEGetable oil | | | | Details |
| vel | velocity | | | | Details |
| VEL | Velocity | | | | Details |
| VELA | Vela International Marine Ltd. Saudi Arabia | | | | Details |
| VELL | Velocity Log | | | | Details |
| VELS | Velocity | | | | Details |
| VEN | VENEZUELA | | | | Details |
| Vent | release gas pressure | | | | Details |
| vent | ventilator | | | | Details |
| Ver | Cl Vermillion Cliff | | | | Details |
| VERAN | Verticality Analysis | | | | Details |
| Verd | Verdigris | | | | Details |
| VERIF | Verification List | | | | Details |
| VERLI | Verification Listing | | | | Details |
| vert | vertical | | | | Details |
| VERTK | Vertical Thickness | | | | Details |
| VES | Visco Elastic Surfactant | | | | Details |
| VES | Viscous Elastic Surfactant | | | | Details |
| ves | vesicular | | | | Details |
| VESS | vessel | | | | Details |
| VIEW | View | | | | Details |
| VIPER | VIPER Slimhole Coiled Tubing MWD Tool | | | | Details |
| VISME | Viscosity Measurement | | | | Details |
| VME | Von Mise’s Equivalent – a method of calculating triaxial stress | | | | Details |
| VME | von Mises Equivalent | | | | Details |
| VSEC | Vertical Section | | | | Details |
| W/E | Work Equipment | | | | Details |
| WAPET | West Australian Petroleum Pty. Ltd. Australia | | | | Details |
| WBE | Well Barrier Element | | | | Details |
| WBEAC | Well Barrier Element Acceptance Criteria | | | | Details |
| WE | Well Engineer | | | | Details |
| WE | WEST BANK | | | | Details |
| WE | weld ends | | | | Details |
| Web | Weber | | | | Details |
| WEC | World Energy Council UK | | | | Details |
| WeCTOGA | West Central Texas Oil and Gas Association | | | | Details |
| WEG | Wireline Entry Guide | | | | Details |
| WEG | see Wireline Entry Guide | | | | Details |
| WEG | Wirtschaftsverband Erdol und Erdgasewinnung e.V. Germany | | | | Details |
| WELDA | Well Data Report | | | | Details |
| Well | Wellington | | | | Details |
| WELP | Well Log Plot | | | | Details |
| WEM | Well Evaluation Model | | | | Details |
| WEP | Well Engineering Process | | | | Details |
| Wepco | Western Desert Petroleum Company | | | | Details |
| WEPCO | Western Desert Petroleum Company Egypt | | | | Details |
| WEQ | WEST BANK | | | | Details |
| WEQL | Well Equipment Layout | | | | Details |
| WestLB | Westdeutsche Landesbank Girozentrale | | | | Details |
| WESTR | Well Status Record | | | | Details |
| WESUR | Well Summary Report | | | | Details |
| Wet | water bearing with little hydrocarbon | | | | Details |
| WETSTM | wellwork evaluation tracking system | | | | Details |
| WGEO | Well Geophone Report | | | | Details |
| WHE | Well Head Equipment | | | | Details |
| whse | warehouse | | | | Details |
| whsle | wholesale | | | | Details |
| WLD/DET | welding detail(s) | | | | Details |
| WLEG | Wire Line Entry Guide (Probably this is mule shoe) | | | | Details |
| WLEG | Wireline Entry Guide | | | | Details |
| WOE | Wait on Equipment | | | | Details |
| WOE | Well Operations Engineer (a key person of Well services) | | | | Details |
| WOE | waiting on engineering | | | | Details |
| WOE | successful wildcat outpost | | | | Details |
| WOPE | waiting on production equipment | | | | Details |
| Wref | Wreford | | | | Details |
| WSDE | Wellsite Drilling Engineer | | | | Details |
| WSE | Written Schemes of Examination | | | | Details |
| WSE | Well Seismic Edit | | | | Details |
| WSE | Well Site Engineer | | | | Details |
| WSERE | Well Seismic Edit Report | | | | Details |
| WSPE | Wellsite Petroleum Engineer | | | | Details |
| WTE | Well Test Engineer | | | | Details |
| WTEP | Well Engineering Technical Policy | | | | Details |
| XE | EUROPA ISLAND | | | | Details |
| XEH | Extra Entry Hole | | | | Details |
| XEU | EUROPA ISLAND | | | | Details |
| X-line | extreme line | | | | Details |
| XLPE | Cross-linked Polyethylene | | | | Details |
| XMACE | XMAC Elite (Next generation of XMAC) | | | | Details |
| XMAC-E | XMAC Elite (Next generation of XMAC) | | | | Details |
| XMAC-E | XMAC Elite (Next generation XMAC) | | | | Details |
| X-over | crossover | | | | Details |
| XPERM | Matrix Permeability in the X-Direction | | | | Details |
| X-REF | cross reference | | | | Details |
| XSEC | Cross Section | | | | Details |
| X-SEC | cross section | | | | Details |
| Xtree | Christmas tree | | | | Details |
| Yanpet | Yanbu’ Petrochemical Company | | | | Details |
| YANPET | Saudi Yanbu Petrochemical Co. Saudi Arabia | | | | Details |
| YE | YEMEN | | | | Details |
| YE | year end | | | | Details |
| yel | yellow | | | | Details |
| YEM | YEMEN | | | | Details |
| Yeminvest | Yemen Investment and Development International | | | | Details |
| ZDENP | Density Log | | | | Details |
| zen | zenith | | | | Details |
| ZWE | ZIMBABWE | | | | Details |
| EK | Engineering-Komponenten | | | | Details |
| PET | Pulse Echo Tool | | | | Details |
| FL/EC | Flux Leakage/Eddy Current tool | | | | Details |
| ECSS | Externally Catalyzed Silicate Systems | | | | Details |
| CrystalSeal | See PGS | | | | Details |
| THERMATEK | See TARSS | | | | Details |
| H2Zero | See OCPS | | | | Details |
| ECS | Externally Catalyzed Silicates | | | | Details |
| NEO | Non Explosive Oilfield (products) | | | | Details |
| Vented T-TBPs | Thru-Tubing Bridge Plugs | | | | Details |
| Vented | See Comment | | | | Details |
| Vented plug | See Comment | | | | Details |
| EPCF | Engineering, Procurement, Construction and Finance | | | | Details |
| Genba | Genba (also romanized as gemba) is a Japanese term meaning "the real place. See comment. | | | | Details |
| Gemba | See Genba | | | | Details |
| EPDS | Engineering, Procurement, Drilling and Services | | | | Details |
| F term | Financial Term | | | | Details |
| ECA | Energy Conversion Agreement | | | | Details |
| SAED | Sarvak Azar Engineering and Development | | | | Details |
| IRITEC | Consortium of Iran International Engineering Company | | | | Details |
| C term | Construction | | | | Details |
| P term | Procurement | | | | Details |
| UESR | Über Spüll Rohr | | | | Details |
| NGEW | Nenngewicht | nominal weight | | | Details |
| OOE | OberÖsterreich | | | | Details |
| ER | External Radius | | | | Details |
| ERAV | External Radius | | | | Details |
| BEO | Beobachtungssonde | Observation well | | | Details |
| red | re-dedication | | | | Details |
| LOESST | Lebenölsammelstation | Oil gathering station | | | Details |
| LOEMST | Lebenölmessstation | Oil measuring station | | | Details |
| EHP | Enhanced Performance | | | | Details |
| EHT | Enhanced Hardmetal Tooth bit | | | | Details |
| EMS | Enhanced Mototr Series bit with sealed roller bearing | | | | Details |
| ETS | Enahnced Turbine Series | | | | Details |
| EDF | Elevation, Derrick Floor | | | | Details |
| EGL | Elevation, Ground Level | | | | Details |
| EKB | Elevation, Kelly Bushing | | | | Details |
| EPD | Elevation Permanent Datum | | | | Details |
| RDATE | Run Date | | | | Details |
| ENGI | Logging Engineer`s Name | | | | Details |
| WHTEMP | Well Head Tempr | | | | Details |
| CHOKE | Choke size | | | | Details |
| MNEM | Measurement mnemonics | | | | Details |
| CE | compensation efficiency | | | | Details |
| SHE | Safety Health Environment (an alternative name for HSSE) | | | | Details |
| GECF | Gas Exporting Countries Forum | | | | Details |
| CEGH | Central European Gas Hub | | | | Details |
| EV | Earned Value | | | | Details |
| EAC | Estimate At Completion | | | | Details |
| EPR | Execusion Progrss Reviews | | | | Details |
| PHSSER | Project HSSE Review | | | | Details |
| ESR | Estimate and Schedule Reviews | | | | Details |
| EB | Executive Board | | | | Details |
| EL | Explosive Limit | | | | Details |
| BLEVE | Boiling liquid expanding vapor explosion | | | | Details |
| ges | Gesamt | Total | | | Details |
| FDE | Field Development Economics | | | | Details |
| ETK | Tauchkreiselpumpe | | | | Details |
| EXZ | Exzenterschneckenpumpe | | | | Details |
| MPE | Ministry of Petroleum & Energy (Norway) | | | | Details |
| PHIE | Effective Porosity | | | | Details |
| rel | relative | | | | Details |
| res | at reservoir conditions | | | | Details |
| Te | Time Equivalent | | | | Details |
| BEA | Bureau of Economic Analysis | | | | Details |
| PCE | Personal consumption expenditures | | | | Details |
| EDR | estimated damage ratio | | | | Details |
| EOU | Ellipsoid Of Uncertainty | | | | Details |
| DED | Deadhorse Magnetic Observatory | | | | Details |
| EMM | Enhanced Magentic Model | | | | Details |
| PGE | Pennsylvania General Energy | | | | Details |
| NEV | north - east - vertical | | | | Details |
| PEH | Petroleum Engineering Handbook | | | | Details |
| WESP | World Economic Situation and Prospects | | | | Details |
| w/e | Wochen ende | | | | Details |
| IE | Internet Explorer | | | | Details |
| MEA | Middle East & Afrika | | | | Details |
| E0 | E0 PCP Econolift | | | | Details |
| EU | PCP Untertage Antrieb | | | | Details |
| PE | PE Plungerlift mit Eigengas | | | | Details |
| EC | EC Einpressonde über Casing | | | | Details |
| EK | EK Einpressonde über Gasliftinstallation | | | | Details |
| ET | ET Einpressonde über Tubing | | | | Details |
| EX | Speichersonde über Casing & Tubing | | | | Details |
| EE | EE Einpressonde mit Einbauten | | | | Details |
| ES | ES Einpressonde ohne Einbauten | | | | Details |
| EB | Elongation on Break | | | | Details |
| REG | Re-entry Guide | | | | Details |
| FEA | Finite Element Analysis | | | | Details |
| I.res | Inplace reserven | | | | Details |
| EFZ | Ende Fließzeit | | | | Details |
| dem | demontiert | disassembled | | | Details |
| E&A | Expenditure Authorization | | | | Details |
| EMEA | Europe, Middle East and Africa | | | | Details |
| ASEM | Asia-Europe Meeting | | | | Details |
| MME | Ministry of Mines and Energy Cambodia | | | | Details |
| IDER | Impulse Derivatve | | | | Details |
| DER | Derivative for Drawdown | | | | Details |
| VEF | Vessel Experience Factor | | | | Details |
| SEDI | Sediments | | | | Details |
| UNEC | Un Economic | | | | Details |
| IEV | Malaysia-based services company ? | | | | Details |
| exp | Exploration | | | | Details |
| ENSO | Paleo-El Niño-Southern Oscillation | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| CVE | Cape Verde Escudo | | | | Details |
| EUR | Euro | | | | Details |
| ECS | Ecuador Sucre | | | | Details |
| EGP | Egyptian Pound | | | | Details |
| ERN | Eritrean Nakfa | | | | Details |
| EUR | Euro | | | | Details |
| ETB | Ethiopian Birr | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| GEL | Georgian Lari | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| KES | Kenyan Shilling | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| PEN | Peruvian Nuevo Sol | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| EUR | Euro | | | | Details |
| SEK | Swedish Krona | | | | Details |
| AED | Arab Emirates Dirham | | | | Details |
| EUR | Euro | | | | Details |
| VEF | Venezuelan Bolivar | | | | Details |
| YER | Yemeni Rial | | | | Details |
| verl | verloren | lost | | | Details |
| EEA | European Economic Area | | | | Details |
| PHIE | effective porosi | | | | Details |
| gem | Gemessen | measured | | | Details |
| ES | Expandable screen | | | | Details |
| ECL | Exploration Consultants Limited | | | | Details |
| def | Definition | | | | Details |
| dev | Deviation Data | | | | Details |
| sec | Second Data | | | | Details |
| set | Scatter Plot Set | | | | Details |
| ENL | Entnahmeleistung | Production performance | | | Details |
| EPL | Einpressleistung | Injecting performance | | | Details |
| LTEN | Wireline Tension | | | | Details |
| CHE | Cable Head | | | | Details |
| FOE | Fred Olsen Energy | | | | Details |
| CEO | Chief Executive Officer | | | | Details |
| rep | representative | | | | Details |
| Bleiabdruck | Impression Block | Impression Block | | | Details |
| BEH | Behördenabteilung | Authority department | | | Details |
| BET | Behandlungstechnik | Work over technics | | | Details |
| ECT | Engineering, Completion & Testing | | | | Details |
| PE | Production Engineering | | | | Details |
| GE | Generalbehandlungen | Work over | | | Details |
| GEE | Generalbehandlungen Energize | Work over - specifically looked for other potentials | | | Details |
| LAE | Laufende Behandlungen Energize | Well Intervention - specifically looked for other potentials | | | Details |
| IEU | Internal-External Upset | | | | Details |
| Drrep | Druck Representativ | representative Pressure | | | Details |
| recov | Recoverable | | | | Details |
| DEC | Drilling Engineering Center | | | | Details |
| DEC | Drilling Engineering Coordinator | | | | Details |
| TE | Thermal Expansion | | | | Details |
| CEF | Connecting Europe Facility | | | | Details |
| EGAS | Eigen Gas | Gas production from a well (see comment) | | | Details |
| E-gas | Eigen Gas | Gas production from a well (see comment) | | | Details |
| AECV | additional emergency control valve | | | | Details |
| Pegel | Level | Level | | | Details |
| Egas | Eigen Gas | Self-owned-gas | | | Details |
| E-gas | Eigen Gas | Self-owned-gas | | | Details |
| EGR | Enhanced Gas Recovery | | | | Details |
| MEFS | Minimum Economic Field Size | | | | Details |
| ERM | Exploration Region Manager | | | | Details |
| EVP | Executive Vice Preident | | | | Details |
| E&R | Exploration & reservoir Management | | | | Details |
| E & R | Exploration & reservoir Management | | | | Details |
| Gewinnungsfeld | License to produce | | | | Details |
| Grubenfeld | License to produce (During and before WWII, no production tax applicable) | | | | Details |
| Förderzins | Production tax | | | | Details |
| OEGV | Öl Gas Verhältnis | OGR - Oil Gas Ratio | | | Details |
| OEB | Oil Equivalent Barrel | | | | Details |
| UET | Übertage | at surface | | | Details |
| SE | Software Engineering | | | | Details |
| Überlauf | overflowing | Over flowing | | | Details |
| SBE | Seal Bore Extensions | | | | Details |
| DEPL | Depleted | | | | Details |
| MOVE | Moved to other reservoir | | | | Details |
| UDEF | Undefined | | | | Details |
| UNEC | Production currently uneconomic# | | | | Details |
| Schnittteufe | Cut window depth | | | | Details |
| Tongehalt | Clay content | | | | Details |
| Rat hole | In the context of a drilling rig, a rat hole is the hole through the rig floor where the kelly can be stored when it has to be disconnected | | | | Details |
| Rat hole | In the context of a well, a rat hole is the hole below the pay zone. Commonly drilled to drop off perforating guns of a gathering or sump area for liquids to separate from gas prior to being pumped. | | | | Details |
| Kante | edge, border | edge, border | | | Details |
| abtasten | to tag something from below in well like tagging the upper edge of a open hole window opened for OHGP out of the casing with a hydraulic opening under-reamer. | | | | Details |
| abgetastet | to tag something from below in well like tagging the upper edge of a open hole window opened for OHGP out of the casing with a hydraulic opening under-reamer. | | | | Details |
| ER | Enhanced Recovery | | | | Details |
| RED | Revisions-Extensions & Discoveries | | | | Details |
| VSE | Volumetric Sweep Efficiency | | | | Details |
| DE | Displacement Efficiency | | | | Details |
| byebye | | | | | Details |
| 2CEX | 2-Arm Caliper Log (Extended Reach) | 2-Arm Caliper Log (Extended Reach) | 2-Arm Caliper Log (Extended Reach) | 2-Arm Caliper Log (Extended Reach) | Details |
| 3DEX | 3D Induction Logging Service | 3D Induction Logging Service | 3D Induction Logging Service | 3D Induction Logging Service | Details |
| 4CEX | 4-Arm Caliper Log (Extended Reach) | 4-Arm Caliper Log (Extended Reach) | 4-Arm Caliper Log (Extended Reach) | 4-Arm Caliper Log (Extended Reach) | Details |
| AADE | American Association of Drilling Engineers | American Association of Drilling Engineers | American Association of Drilling Engineers | Association américaine des ingénieurs de forage | Details |
| AAPEA | Australian Petroleum Production and Exploration Association | Australian Petroleum Production and Exploration Association | Australian Petroleum Produktion und Exploration Verband | Australian Petroleum Production et Association de l'exploration | Details |
| AbEx | Abandonment Expense | abandonment Expense | Aufgeben Expense | abandon des dépenses | Details |
| OOEF | OberÖsterreich Fern Gas | A company in Austria active in energy sector | | | Details |
| Aufnahme test | Injectivity test | | | | Details |
| DFELAT | Drill Floor Elevation referenced to Lowest Astronominal Tide | | | | Details |
| GOEK | Gas Öl Kontakt | Gas Oil Contact | | | Details |
| WOEK | Wasser Öl Kontakt | Water Oil Contact | | | Details |
| OEGK | Öl Gas Kontakt | Oil Gas Contact | | | Details |
| OEWK | Öl Wasser Kontakt | Oil Water Contact | | | Details |
| OEGV | Öl Gas Verhältnis | Oil Gas Ratio | | | Details |
| WOEV | Wasser Öl Verhältnis | Water Oil Ratio | | | Details |
| ESG | Environmental, Social and Governance | | | | Details |
| CPEC | China-Pakistan Economic Corridor | | | | Details |
| EOV | Entnahme ohne Verdichtung | Gas production without the help of a compressor into the main pipeline | | | Details |
| EMV | Entnahme mit Verdichtung | Gas production with the help of a compressor into the main pipeline | | | Details |
| ESK | ErdgasSpeicher Kalle | | | | Details |
| EKU | E-Kreuz Unterteil | Lower part of X mas tree | | | Details |
| EPSAs | Exploration and Production Sharing Agreements | | | | Details |
| SCOPE | Step Change in Operations and Production Efficiency | | | | Details |
| OEOC | Oil Exploration Operations Company | | | | Details |
| AFE | Above Field Elevation | | | | Details |
| Kanone Abwerfen | Gun release | | | | Details |
| IP week | International Petroleum week | | | | Details |
| SURE | Name fo a reservoir simulating software | | | | Details |
| Molchschleuse | Scraper trap | | | | Details |
| GCE | Gas Cap Expansion | | | | Details |
| EGK | Emissionsschutzgesetz für Kesselanlagen | Emission rule for boiler devices | | | Details |
| ELOT | Extended Leak Off Test | Same as XLOT | | | Details |
| TES | Thermal Energy Storage | | | | Details |
| Steigrohr | Tubing | Tubing | | | Details |
| Steigleitung | stand pipe on drilling rig, or Tubing in a well | Stand pipe or tubing | | | Details |
| ev | eventuell | finally | | | Details |
| ESS | energy storage system | | | | Details |
| OEMs | original equipment manufacturers | | | | Details |
| VEH | van Everdingen-Hurst | | | | Details |
| We | Water Influx | | | | Details |
| SPIEF | St. Petersburg International Economic Forum | | | | Details |
| C&E | Cause & Effect | | | | Details |
| C & E | Cause & Effect | | | | Details |
| EAZ | Emergency Awareness Zone | | | | Details |
| EPZ | Emergency Planning Zone | | | | Details |
| UET | ÜberTief | Ultra deep | | | Details |
| RES | Reservoir Engineers | | | | Details |
| EOL | End Of Lifetime | | | | Details |
| OE. | Ohne Ergebnis | Without Success | | | Details |
| EP | Exploration Plan | | | | Details |
| SEO | Search Engine Optimization | | | | Details |
| Schlucksonde | Schluckbohrung | Disposal well, | | | Details |
| PES | Probability of Economic Success | | | | Details |
| Schleuse | Lubricator for running | | | | Details |
| Aufnahmetest | Acceptance test, any test done in a well | | | | Details |
| TE | Time End | | | | Details |
| ecs | environmental compatibility study | | | | Details |
| ect | environmental control truck | | | | Details |
| eia | environmental impact assessment | | | | Details |
| est | environmental strike team | | | | Details |
| egt | european geotraverse | | | | Details |
| FRE | Frequency | | | | Details |
| RETV | Retrievable | | | | Details |
| DRE | Development Reservoir Engineer | | | | Details |
| Un-De | Undeveloped (resources/reserves) | | | | Details |
| De | Developed (resources/reserves) | | | | Details |
| OPRES | OMV Petroleum Resources Evaluation Standard | | | | Details |
| QRE | Qualified Reserves Estimators | | | | Details |
| EURF | Expected Ultimate Recovery Factor | | | | Details |
| EOD | End of Day | | | | Details |
| EOB | End Of Business (day) | | | | Details |
| EOP | End Of Play | | | | Details |
| Zapfen | pin (tubular pin) | pin (tubular pin) | | | Details |
| PDE | Partial Differential Equation | | | | Details |
| CPERM | Core Permeability | | | | Details |
| (bbl/d)/(rev/s) | GeoFrame legacy unit | | | | Details |
| (m3/d)/(rev/s) | GeoFrame legacy unit | | | | Details |
| (m3/h)/(rev/s) | GeoFrame legacy unit | | | | Details |
| (m3/s)/(rev/s) | GeoFrame legacy unit | | | | Details |
| (MCF/d)/(rev/s) | (thousand cubic feet per day) per (revolution per second) | | | | Details |
| (rev/s)/(ft/min) | GeoFrame legacy unit | | | | Details |
| (rev/s)/(m/min) | GeoFrame legacy unit | | | | Details |
| (rev/s)/(m/s) | GeoFrame legacy unit | | | | Details |
| (S/m)/(meq/cm3) | (siemen per meter) per (millieqivalent per cubic centimeter) | | | | Details |
| seca | millisecond (angle) | | | | Details |
| deg/ft | degree per hundred feet | | | | Details |
| deg/m | degree per hundred meters | | | | Details |
| degC/m | degree celsius per hundred meters | | | | Details |
| degF/ft | degree fahrenheit per hundred feet | | | | Details |
| meq/g | milliequivalent per hundred grams | | | | Details |
| deg/ft | degree per decafoot | | | | Details |
| deg/m | degree per decameter | | | | Details |
| 1/degC | inverse degree Celsius | | | | Details |
| ACRE | acre | | | | Details |
| acre | acre | | | | Details |
| ACRE.FT | acre foot | | | | Details |
| acre.ft | acre foot | | | | Details |
| AED | UAE dirham | | | | Details |
| ASECOND | second (angle) | | | | Details |
| B/E | barn per electron | | | | Details |
| B/e | barn per electron | | | | Details |
| bbl/(acre.ft) | barrel per acre per foot | | | | Details |
| bbl/acre | barrel per acre | | | | Details |
| bbl/acre.ft | GeoFrame legacy unit | | | | Details |
| BEF | Belgian franc | | | | Details |
| Btu/(h.degF.ft2) | BTU per hour per degree fahrenheit per square foot | | | | Details |
| Btu/h.degF.ft2 | GeoFrame legacy unit | | | | Details |
| CENTIMETER | centimeter | | | | Details |
| CENTIMETERS | centimeter | | | | Details |
| CENTIMETRE | centimeter | | | | Details |
| CENTIMETRES | centimeter | | | | Details |
| DECN | decanewton | | | | Details |
| DEG | degree (angle) | | | | Details |
| deg C | degree celsius | | | | Details |
| deg F | degree fahrenheit | | | | Details |
| deg/100ft | degree per hundred feet | | | | Details |
| deg/10ft | degree per ten feet | | | | Details |
| deg/10m | degree per ten meters | | | | Details |
| deg/30m | degree per thirty meters | | | | Details |
| deg/dam | degree per ten meters | | | | Details |
| deg/ft | degree per foot | | | | Details |
| deg/h | degree per hour | | | | Details |
| deg/m | degree per meter | | | | Details |
| dega | degree (angle) | | | | Details |
| DEGC | degree celsius | | | | Details |
| degC | degree celsius | | | | Details |
| degC/(kgf/cm2) | degree celsius per kilogram per square centimeter | | | | Details |
| degC/30m | degree celsius per thirty meters | | | | Details |
| degC/bar | degree celsius per bar | | | | Details |
| degC/ft | degree celsius per foot | | | | Details |
| degC/h | degree celsius per hour | | | | Details |
| degC/km | degree celsius per kilometer | | | | Details |
| degC/kPa | degree celsius per kilopascal | | | | Details |
| degC/m | degree celsius per meter | | | | Details |
| degC/min | degree celsius per minute | | | | Details |
| degC/s | degree celsius per second | | | | Details |
| DEGF | degree fahrenheit | | | | Details |
| degF | degree fahrenheit | | | | Details |
| degF/(100 ft) | degree fahrenheit per hundred feet | | | | Details |
| degF/100ft | degree fahrenheit per hundred feet | | | | Details |
| degF/ft | degree fahrenheit per foot | | | | Details |
| degF/h | degree fahrenheit per hour | | | | Details |
| degF/m | degree fahrenheit per meter | | | | Details |
| degF/min | degree fahrenheit per minute | | | | Details |
| degF/psi | degree fahrenheit per pound per square inch | | | | Details |
| degF/s | degree fahrenheit per second | | | | Details |
| degK | degree Kelvin | | | | Details |
| DEGK | kelvin | | | | Details |
| DEGR | degree rankine | | | | Details |
| degR | degree rankine | | | | Details |
| DEGREE | degree (angle) | | | | Details |
| degrees | degree (angle) | | | | Details |
| DEGREES | degree (angle) | | | | Details |
| DEM | Deutsche mark | | | | Details |
| DYNE | dyne | | | | Details |
| dyne/cm | dyne per centimeter (GeoFrame legacy unit) | | | | Details |
| DYNE/CM | dyne per centimeter | | | | Details |
| E/M3 | equivalent per cubic meter | | | | Details |
| E3m3 | thousand cubic meters | | | | Details |
| ECS | Ecuadorian sucre | | | | Details |
| EGP | Egyptian pound | | | | Details |
| ehp | electric horsepower | | | | Details |
| EJ | exajoule | | | | Details |
| EPA2 | gigapascal squared | | | | Details |
| eq | equivalent (electrochemical, as used in cation exchange studies) | | | | Details |
| eq/m3 | equivalent per cubic meter | | | | Details |
| ESP | Spanish peseta | | | | Details |
| EV | electron volt | | | | Details |
| eV | electron volt | | | | Details |
| feet | foot | | | | Details |
| GeV | gigaelectronvolt | | | | Details |
| GJ/E3m3 | gigajoule per thousand cubic meters | | | | Details |
| IEP | Irish pound | | | | Details |
| INCHES | inch | | | | Details |
| J/(s.degC.m2) | joule per second per degree celsius per square meter | | | | Details |
| kcal/(h.degC.m2) | kilocalorie per hour per degree celsius per square meter | | | | Details |
| KEV | kiloelectronvolt | | | | Details |
| keV | kiloelectronvolt | | | | Details |
| KILOMETER | kilometer | | | | Details |
| KILOMETERS | kilometer | | | | Details |
| KILOMETRE | kilometer | | | | Details |
| KILOMETRES | kilometer | | | | Details |
| linkClarke | Link (Clarke) | | | | Details |
| LITER | liter | | | | Details |
| LITERS | liter | | | | Details |
| LITRE | liter | | | | Details |
| MEGO | megohm | | | | Details |
| meq | milliequivalent (for cation exchange studies) | | | | Details |
| MEQ/100G | milliequivalent per hundred grams | | | | Details |
| meq/cm3 | milliequivalent per cubic centimeter | | | | Details |
| meq/g | milliequivalent per gram | | | | Details |
| meq/hg | milliequivalent per hundred grams | | | | Details |
| METER | meter | | | | Details |
| METERS | meter | | | | Details |
| METRE | meter | | | | Details |
| METRES | meter | | | | Details |
| MeV | megaelectronvolt | | | | Details |
| MEV | megaelectronvolt | | | | Details |
| Mft3/acre | GeoFrame legacy unit | | | | Details |
| Mft3/acre.ft | GeoFrame legacy unit | | | | Details |
| MICROSECOND | microsecond | | | | Details |
| MICROSECONDS | microsecond | | | | Details |
| MILE | mile | | | | Details |
| MILES | mile | | | | 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 |
| MINUTE | minute | | | | Details |
| MINUTES | minute | | | | Details |
| MNEW | newton-meter | | | | Details |
| mole % | GeoFrame legacy unit | | | | Details |
| mS.m2/eq | (siemen per meter) per (millieqivalent per cubic centimeter) | | | | Details |
| MSEC | millisecond | | | | Details |
| MTES | millitesla | | | | Details |
| NTES | nanotesla | | | | Details |
| Oe | oersted | | | | Details |
| OER | oersted | | | | Details |
| oersted | GeoFrame legacy unit | | | | Details |
| PEI | Peruvian inti | | | | Details |
| PTE | Portuguese escudo | | | | Details |
| REV | revolution (cycle) | | | | Details |
| rev/1000ft | GeoFrame legacy unit | | | | Details |
| rev/min | GeoFrame legacy unit | | | | Details |
| rev/s | GeoFrame legacy unit | | | | Details |
| SEC | second | | | | Details |
| seca | second (angle) | | | | Details |
| SECOND | second | | | | Details |
| SECONDS | second | | | | Details |
| SEK | Swedish krone | | | | Details |
| SIEM | siemens | | | | Details |
| TeV | teraelectronvolt | | | | Details |
| TPE | Timor escudo | | | | Details |
| USEC | microsecond | | | | Details |
| VEB | Venezuelan bolivar | | | | Details |
| XEU | European currency unit | | | | Details |
| yardSears | Yard (Sears) | | | | Details |
| DTMETRIC | Delta T Sonic in Meter | | | | Details |
| NEU | Neutron Count Rate | | | | Details |
| PE | DNS Density Photoelectric Index | | | | Details |
| PEB | Photoelectric Factor | | | | Details |
| PEF | Photoelectric Factor | | | | Details |
| PEFZ | Photoelectric Factor | | | | Details |
| PERF | Perforation flag | | | | Details |
| PERM | Complex Lithology Oil Permeability | | | | Details |
| PHIE | Effective Porosity | | | | Details |
| SP_EX | Spontaneous Potential final Proseis enhanced SP_index 0-1 | | | | Details |
| VELC | Compressional Velocity | | | | Details |
| ZDEN | Bulk density | | | | Details |
| NEU | Neutron Count Rate | | | | Details |
| PEF | Photoelectric Factor | | | | Details |
| PEFZ | HRDD Standard Resolution Formation Photoelectric Factor | | | | Details |
| RES_BM | Medium Button Resistivity | | | | Details |
| RES_RING | Ring Resistivity | | | | Details |
| FTEMP | Formation Temperature | | | | Details |
| PERM | Complex Lithology Oil Permeability | | | | Details |
| PHIE | Effective Porosity | | | | Details |
| PHIE_orig | | | | | Details |
| Phi_Den | | | | | Details |
| PHIE_CPX | Effective Porosity | | | | Details |
| VELC | Compressional Velocity | | | | Details |
| AFE | Authorisation For Expenditure | | | | Details |
| BATNEEC | Best Available Technique Not Entailing Excessive Costs | | | | Details |
| EDMS | Electronic Data Management System | | | | Details |
| EEMS | Environmental Emissions Monitoring System | | | | Details |
| EOP | Exploration, Operations and Projects | | | | Details |
| EP | Engineering and Procurement | | | | Details |
| EPCC | Engineering, Procurement, Construction and Comissioning | | | | Details |
| EPCI | Engineering, Procurement, Construction, and Installation | | | | Details |
| EPCM | Engineering, Procurement, Construction and Management | | | | Details |
| EPIC Contract | Engineer, Procure, Install and Commission | | | | Details |
| ES | Environmental Statement | | | | Details |
| ESD | Emergency Shut Down System | | | | Details |
| ESP | Electrical Submerged Pumps | | | | Details |
| ETA | Event Tree Analysis | | | | Details |
| EWRM | Enterprise Wide Risik Management | | | | Details |
| Excom | Exploration Committee | | | | Details |
| FEL | Front End Loading | | | | Details |
| GES | Gas Export System | | | | Details |
| HSEMS | HSE Management System | | | | Details |
| MAE | Major Accidental Event (HSEQ) | | | | Details |
| Opex | Operational Expenditure | | | | Details |
| PEMP | Project Environmental Management Plan | | | | Details |
| PFEER | Prevention of Fire, Explosion, Emergency Response | | | | Details |
| PPE | Personal Protection Equipment | | | | Details |
| belem | belemnites | | | | Details |
| bent | bentonitic | | | | Details |
| Caren | cavernous | | | | Details |
| Clye | clayey | | | | Details |
| Cohesv | cohesive | | | | Details |
| decr | decreasingly | | | | Details |
| dense | densely | | | | Details |
| det | detrital | | | | Details |
| dissem | disseminated | | | | Details |
| desagg | desegregated | | | | Details |
| embay | embayed | | | | Details |
| est | estimated | | | | Details |
| even | even | | | | Details |
| fest | foreset | | | | Details |
| fexln | finelycrystaline | | | | Details |
| hem | hematitic | | | | Details |
| inclined | inclusious | | | | Details |
| interbed | interbeds | | | | Details |
| intmed | intermediate | | | | Details |
| interafom | informational | | | | Details |
| ker | kerogen | | | | Details |
| lse | loose | | | | Details |
| perv | pervasive | | | | Details |
| pred | predominantly | | | | Details |
| remnant | remnants | | | | Details |
| resd | residual | | | | Details |
| red | red | | | | Details |
| skel | skeletal | | | | Details |
| vein | vein | | | | Details |
| vge | vague | | | | Details |
| xbed | cross bedded | | | | Details |
| AACE | Association of the Advancement of Cost Engineering | | | | Details |
| ACE | Average capital employed | | | | Details |
| ARGE | Arbeitsgemeinschaft | | | | Details |
| BOEPD | Barrels of Oil Equivalent Per Day | | | | Details |
| CAPEX | Capital Expenditures | | | | Details |
| E&P | Exploration & Production | | | | Details |
| e.g. | exempli gratia/ for example | | | | Details |
| EA | Enterprise Architecture | | | | Details |
| EAGE | European Association of Geoscientists and Engineers | | | | Details |
| EBIT | Earnings Before Interests and Taxes | | | | Details |
| EBITD | Earnings before interest, tax and depreciation | | | | Details |
| EBRD | European Bank of Reconstruction and Development | | | | Details |
| EDT | Eastern Daylight Time | | | | Details |
| EDTC | Telemetry Cartridge | | | | Details |
| EGRC | Expert Group on Resource Classification | | | | Details |
| ELMT | Exploration License Management System | | | | Details |
| EMOC | Electronic Management of Change | | | | Details |
| EMP | Expected Monetary Value | | | | Details |
| EOB | End Of Business (day) | | | | Details |
| EOBD | End Of Business Day | | | | Details |
| EOD | End of (the) Day | | | | Details |
| EPF | Early Production Facilities | | | | Details |
| EPIS | E&P Information System | | | | Details |
| EPR | Execution Performance Review | | | | Details |
| EPR | Execution Progress Review | | | | Details |
| EPS | Ethylen Pipeline Süd | | | | Details |
| EPS | Earnings per share | | | | Details |
| ESCo | Energy Service Company | | | | Details |
| ESS | Employee Self Service | | | | Details |
| EstGB | Einkommenssteuer Gesetzbuch | | | | Details |
| ETR | Effective tax rate | | | | Details |
| ETRM | Energy Trading and Risk Management | | | | Details |
| ETSO | European Transmission and System Operators | | | | Details |
| EV | Enterprise value | | | | Details |
| EVA | Economic value added | | | | Details |
| EZB | Europäische Zentralbank | | | | Details |
| FAME | fatty acid methyl ester | | | | Details |
| FEED | Front End Engineering & Design | | | | Details |
| FEL | Front-End Loading | | | | Details |
| FIRE | First Resource Estimates | | | | Details |
| FTE | Full-Time Equivalent / Employee | | | | Details |
| GAE | Gänserndorf | | | | Details |
| GEMS | Global Entity Management System | | | | Details |
| HEMP | Hazard and effects management process | | | | Details |
| HSSE | Health Safety Security Environment | | | | Details |
| IASDEO | Identify, Assess, Select, define, Execute, Operate | | | | Details |
| IEA | Internationale Energieagentur | | | | Details |
| MEC | Middle East & Caspian | | | | Details |
| MECE | Mutually Exclusive, Collectively Exhaustive | | | | Details |
| NEAA | Northwest Europe, Africa & Australasia | | | | Details |
| NICE | Needs, Interests, Concerns and Expectations | | | | Details |
| OPEX | Operational Expenditures | | | | Details |
| PE | Petroleum Engineering | | | | Details |
| PERM | Petroleum Engineering Regional Manager | | | | Details |
| Photogrammetry | 'photo' = light; 'gram' = drawing; 'metry' = measurement | | | | Details |
| QRE | Qualified Reserves Estimator | | | | Details |
| RE | Reservoir Engineering | | | | Details |
| REAL | Regulations Alignment Plattform | | | | Details |
| RED | Revisions, Extensions & Discoveries | | | | Details |
| ROE | Return on equity | | | | Details |
| SEC | United States Securities and Exchange Commission | | | | Details |
| SED | Six Arm Dipmeter Survey | | | | Details |
| SEPA | Single Euro Payments Area | | | | Details |
| SME | Subject Matter Expert | | | | Details |
| SPULSE | Slim Pulse MWD Directional | | | | Details |
| TECOP | Technical, Economical, Commercial, Organizational, Political-Societal | | | | Details |
| TelCo | Telephone Conference | | | | Details |
| UNICEF | United Nations International Children's Emergency Fund | | | | Details |
| WebI | Web Intelligence | | | | Details |
| AELB | Atomic Energy Licensing Act | | | | Details |
| AEOS | All Employees Opinion Survey | | | | Details |
| AFE | Approval for Expenditure | | | | Details |
| BOE | Barrel of Oil Equivalent | | | | Details |
| CE | Capital Employed | | | | Details |
| DOE | Department of Environment | | | | Details |
| ECC | Emergency Control Co-ordinator | | | | Details |
| EDR | Expectation Developed Reserves | | | | Details |
| EI | Employee Information | | | | Details |
| EOS | Earliest On Site | | | | Details |
| EOS | Economies Of Scale | | | | Details |
| EPAC | Exploration & Production Audit Committee | | | | Details |
| EPBC | Exploration & Production Business Council | | | | Details |
| EPBM | Exploration & Production Business Model | | | | Details |
| EPCC | Engineering, Procurement, Construction & Commissioning | | | | Details |
| EPIS | Exploration & Production Issues & Strategy | | | | Details |
| EPU | Economic Planning Unit | | | | Details |
| ER | Emergency Response | | | | Details |
| ESA | Environmental Site Assessment | | | | Details |
| ETD | Estimated Time of Departure | | | | Details |
| ETR | Effective Tax Rate | | | | Details |
| EWMS | Engineering Work Management System | | | | Details |
| HEP | Horizontal Entry Point | | | | Details |
| HSES | Health, Safety, Environment & Security | | | | Details |
| HSEC | Health, Safety & Environment Committee | | | | Details |
| HSE-MS | Health, Safety & Environment Management System | | | | Details |
| HUET | Helicopter Under Water Escape Technique | | | | Details |
| LE | Latest Estimates | | | | Details |
| MEDEVAC | Medical Emergency Evacuation | | | | Details |
| MEE | Minimum Environmental Expectations | | | | Details |
| MME | Management of Major Emergency's | | | | Details |
| NTE | New Technology Environment | | | | Details |
| OREDA | Offshore Reliability Data | | | | Details |
| PAYE | PayAs-You-Earn | | | | Details |
| RBE | Risk Based Estimation | | | | Details |
| RE | Reservoir Engineering | | | | Details |
| SCE | Solid Control Equipment | | | | Details |
| SES | Side Entry Sub Used to allow the wireline to enter the casing | | | | Details |
| SET | Solid Expandable Tubular | | | | Details |
| TECOP | Technical Economical Commercial Organisational Political | | | | Details |
| USECHH | Use and Standard of Exposure of Chemicals Hazardous to Health | | | | Details |
| CBOE | Chicago Board Options Exchange | | | | Details |
| CF OPEX | Operational Expenditures | | | | Details |
| EACs | Export Assistance Centers | | | | Details |
| EAR | Effective annual rate | | | | Details |
| EAY | Effective Annual Yield | | | | Details |
| EBITA | Earnings before interest and taxes and amortization | | | | Details |
| EBITDA | Earnings before Interest, Taxes, Depreciation, and Amortization | | | | Details |
| ECB | European Central Bank | | | | Details |
| EDI | Electronic Data Interchange | | | | Details |
| EFSM | European Financial Stabilisation Mechanism | | | | Details |
| EFTPOS | Electronic Funds Transfer at Point of Sale | | | | Details |
| EPS | Earnings per share | | | | Details |
| EXP | Export | | | | Details |
| EOB | End Of the Business | | | | Details |
| EOD | End Of the Day | | | | Details |
| EOM | End Of Message | | | | Details |
| ETD | Estimated Time of Delivery | | | | Details |
| EMI | Equated Monthly Installment | | | | Details |
| EPC | Export Promotion Council | | | | Details |
| ECGC | Export Credit Guarantee Corporation of India | | | | Details |
| IE | Interest expense | | | | Details |
| LIFFE | London International Financial Futures and Options Exchange | | | | Details |
| LME | London Metal Exchange | | | | Details |
| NTE | Not To Exceed | | | | Details |
| OECD | Organisation for Economic Co operation and Development | | | | Details |
| OPEX | Operational Expenditures | | | | Details |
| P/E | Price to earnings ratio | | | | Details |
| PEG | Price to earnings growth ratio | | | | Details |
| PP&E | Property, plant, and equipment | | | | Details |
| PHEK | Planherstellungskosten (Product Planning cost) | | | | Details |
| RE | Retained Earnings | | | | Details |
| ROE | Return on Equity | | | | Details |
| SEBI | Securities and Exchange Board of India | | | | Details |
| SME | Small and Medium Enterprises | | | | Details |
