List of petroleum and oil company

bellow are the small part of all world companies, some have email address and phone number also website address that can be use to view company profil and news.

In the list of petroleum company and oil exploration industry bellow you can found information about location where the oil field operating and drilling program for well.

Aera Energy LLC – oil and gas producer Bakersfield, USA, America(North)

Afren plc – independent oil and gas exploration, development and production companyLondon, UK, Europe(North)

AGIP Petroli SpA – operates in the refining and marketing of petroleum productsRome, Italy, Europe(South)

Aker Floating Production – own, operate, and charter out converted tankers equipped for offshore oil and gas production and storage Oslo, Norway, Europe(North)

Aminex plc – experienced, independent, oil and gas company London, UK, Europe(North)Anadarko Petroleum – one of the largest independent crude oil and natural gas exploration and production companies Houston, USA, America(North)

Antrim Energy inc – an oil and gas exploration and production company Calgary, CANADA, America(North)

Anzon Australia Limited – upstream oil and gas company formed to acquire, develop and commercialise defined oil and gas fields Sydney, Australia, Australia

Arc Energy – petroleum production and exploration company Perth, Australia, AustraliaAtlantic Petroleum – oil and gas exploration company Tórshavn, Faroe Islands, Europe(North)

ATP Oil and Gas Corporation – develop already-discovered offshore petroleum reservesHouston, USA, America(North)

Australian Worldwide Exploration Ltd – Australian oil and gas exploration and production company Sydney, Australia, Australia

Azerbaijan International Operating Company (AIOC) – a consortium of 10 major international oil companies and SOCAR, is developing the Azeri, Chirag and deep-water portion of Gunashli fields Baku, Azerbaijan, Middle East

Bass Strait Oil Company – exploration and production activities Melbourne, Australia, Australia

Beach Petroleum – oil and gas Exploration and Production Company Glenside, Australia, Australia

BG Norge – engaged in exploration for and production, transmission, distribution and supply of natural gas Stavanger, Norway, Europe(North)

Bharat Petroleum – Refining, Storing, Marketing and distributing petroleum productsMumbai, India, Asia

BHP Billiton – an international oil and gas exploration and production company in australia Melbourne, AUSTRALIA, Australia

Blue Dolphin Energy Company – pipeline and oil gas exploration services Houston, USA, America(North)

Bow Valley Energy Ltd. – is leveraging its knowledge of the international oil and natural gas industry to identify and exploit niche opportunities Calgary, Canada, America(North)

Bowleven – African focused oil and gas company Edinburgh, UK, Europe(North)

BP Norge AS – Holds 15 licences and is operator of 11. Operatorships include the Valhall/Hod and Ula/Tambar fields. Stavanger, Norway, Europe(North)

BPZ Energy – is an oil and gas exploration and production company which has exclusive license contracts for oil and gas exploration and production Houston, USA, merica(North)

BW Offshore AS – world’s leading FPSO contractors and a market leader within dvanced offshore loading and production systems Oslo, Norway, America(North)

Cabinda Gulf Oil Company Ltd, CABGOC – Luanda, ANGOLA, AfricaCabot Oil and Gas – natural gas producer and marketer Houston, USA, America(North)

Cairn Energy PLC – oil and gas exploration and production company based in Edinburgh, Scotland Edinburgh, SCOTLAND, Europe(North)

Cairn India – largest producing oil field in the Indian private sector Gurgaon, India, Asia

Callon Petroleum Company – engaged in the exploration, development, acquisition and operation of oil and gas properties Houston, USA, America(North)

Caltex – is the largest refiner and marketer of petroleum products in Australia Sydney, Australia, Australia

Canadian Natural Resources – oil and natural gas production canada Calgary, CANADA, America(North)

Carrizo Oil and Gas – independent energy company engaged in the exploration, development and production of natural gas and oil Houston, USA, America(North)

Centrica plc – upstream gas production and exploration Windsor, UK, Europe(North)

Cheetah Oil & Gas Ltd – is an exploration stage oil and gas company engaged in exploring for petroleum and natural gas Port Moresby, Guinea, Asia

Chevron Upstream Europe – one of the world’s leading integrated energy companies, with subsidiaries that conduct business worldwide Aberdeen, UK, Europe(North)

ChevronTexaco – among the world’s largest global energy companies San Francisco, USA, America(North)

CHINA Petroleum Technology & Development Corp – China’s largest professional foreign trade company for petroleum and petrochemical materials, equipment and technologies Beijing, China, Asia

Chornmornaftogas NSC – searching, exploration drilling, construction of fixed platforms and underwater pipelines, development and exploitation of oil and gas fields Simferopol, Ukraine, Europe(North)

Circle Oil Plc – is an oil and gas exploration, development and production company with an attractive portfolio of assets in Morocco, Namibia, Oman, Panama and Tunisia Limerick, Ireland, Europe(North)

CNOOC – China National Offshore Oil Corporation – China National Offshore Oil Corporation – CNOOC Beijing, CHINA, Asia

CNPC – The China National Petroleum Corporation Beijing, CHINA, AsiaCobalt International Energy – a private oil and gas exploration and production company focusing on the deepwater of the Gulf of Mexico and West Africa. Houston, USA, America(North)

Conoco Inc – integrated oil company explores for oil and gas production Houston, USA, America(North)

Cosmo Oil – product range for the petrochemical business Tokyo, Japan, Asia

Dana Petroleum – ten North Sea fields in production Aberdeen, SCOTLAND, Europe(North)

Desire Petroleum Plc – explore and identify commercial hydrocarbon reserves London, UK, Europe(North)

Devon Energy – independent oil and gas exploration services and producer Oklahoma City, USA, America(North)

Discover Petroleum – unique exploration technology that will transform hydrocarbon exploration Tromsø, Norway, Europe(North)

DONG – danish oil and gas exploration services company Hørsholm, DENMARK, Europe(North)

Dragon Oil – is an independent oil development and production company Dubai, UAE, Middle East

Ecopetrol, S.A. – carries out hydrocarbon exploration activities Bogota, Columbia, America(South)

EGAS – Egyptian Natural Gas Holding Company – handle the activities of the natural gas resources of Egypt Cairo, EGYPT, Middle East

ENAP – exploration and production activities for crude oil and natural gas and the refining and logistics of fuels and other petroleum by products Santiago, Chile, America(South)

Encana – one of North America’s largest independent gas and oil exploration producersCalgary, CANADA, America(North)

EnCore Oil plc – is an oil and gas exploration and production (E&P) companyLondon, UK, Europe(North)

EnerGulf Resources Inc – international oil and gas exploration and production companyHouston, USA, America(North)

Eni SpA – integrated energy production company Rome, ITALY, Europe(South)

Enterprise Oil plc – a crude oil and natural gas exploration and production operator company London, UK, Europe(North)

EOG Resources, Inc. – independent (non-integrated) oil and natural gas companies in the United States Houston, USA, America(North)

Ernst & Young LLP – financing international exploration, acquisition structuring, transfer pricing, or tax compliance, the energy, St John, Canada, America(North)

Essar Oil – operates a fully integrated oil company of international size and scale in India.Mumbai, India, Asia

Falkland Oil and Gas – survey and hydrocarbon exploration London, UK, Europe(North)

Famfa Oil Limited – Nigerian oil and gas exploration and production company Lagos, Nigeria, Africa

Forest Oil Corporation – exploration, acquisition, development, production and marketing of natural gas and crude oil Denver, USA, America(North)

Fred. Olsen Production – Floating Production, Storage and Offloading (FPSO) and Floating Storage and Offloading (FSO) units Oslo, Norway, Europe(North)

Frontier Drilling AS – an independent supplier of drilling and production services for the oil industry Bergen, NORWAY, Europe(North)

Galp Energia, SGPS, S.A. – Oil Petroleum, Natural Gas Supply, Regasification, Transport, Storage and Distribution portugal Lisboa , PORTUGAL, Europe(South)

Gas de France – one of the leading European gas groups Paris, FRANCE, Europe(North)

Gazflot – russian exploration and ship owning company Moscow, RUSSIA, Europe(North)

Gazprombank – services to enterprises and employees of other sectors (chemical, engineering, defence, nuclear etc.) Moscow, Russia, Europe(North)

GeoPardazesh – one of the Iranian’s leading Geophysics and Geology Exploration Services Groups Ahwaz, Iran, Middle East

GSPC Gujarat State Petroleum Corporation – vertically integrated energy company across India and overseas Gandhinagar, India, Asia

Heritage Oil Corporation – independent, international oil and gas exploration, development and production company Calgary, Canada, America(North)

Hindustan Petroleum – major integrated oil refining and marketing companies in IndiaMumbai, India, Asia

Holloman Energy Corp – is an emerging international exploration, development and production independent Houston, USA, America(North)

Hunting PLC – leading suppliers of Well Construction and Well Completion equipmentLondon, UK, Europe(North)

Hyperdynamics – energy for the future by exploring for new sources of oil and gas both domestically and internationally Sugar Land, USA, America(North)

Iceland Oil – oil gas exploration company in Iceland Reykjavik, ICELAND, urope(North)

Indian Oil Corp – major diversified, transnational, integrated energy company New Delhi, India, Asia

Inpex Corporation – oil gas exploration in japan Tokyo, JAPAN, Asia

Ithaca Energy Inc. – is a Canadian oil and gas exploration and development companyCalgary, Canada, America(North)

JSC Gazprom Neft – is one of the largest oil and gas producing companies in RussiaMoscow, Russia, Europe(North)

KOGAS Korea Gas Corporation – participating in international projects through equity participation in overseas LNG projects Gyeonggi-do, Korea, Asia

Larsen Oil and Gas – international drilling and production contractor Aberdeen, UK, Europe(North)

Lukoil – is Russia’s leading oil company Moscow, RUSSIA, Europe(North)

Maersk FPSOs – Floating Production, Storage and Offloading vessels Copenhagen, Denmark, Europe(North)

Maersk Oil – a midsize international oil and gas company Copenhagen, Denmark, Europe(North)

Maine Oil & Gas Corporation – is an emerging, integrated oil and gas company focused on the acquisition of and development of assets in the gulf of guinea Houston, USA, America(North)

Marathon Oil Company – worldwide exploration and production of crude oil and natural gas Houston, USA, America(North)

MEO Australia – company focused on developing large gas projects Melbourne, Australia, Australia

Murphy Oil Corporation – oil and gas exploration and production El Dorado, USA, America(North)

National Iranian Oil Company – exploration, development, production, marketing of crude oil and natural gas. Tehran, Iran, Middle East

Neste Oil – owns and operates two oil refineries in Finland Espoo, Finland, Europe(North)

New Zealand Oil & Gas Ltd – independent, Wellington-based exploration and production company Wellington, New Zealand, Australia

Newfield Exploration Company – is an independent crude oil and natural gas exploration and production company Houston, USA, America(North)

Nexus Energy – is a Melbourne based, Australian Stock Exchange listed oil and gas company Melbourne, Australia, Australia

Nexus Floating Production Ltd – supplier of high quality harsh environment FPSOsSingapore, Singapore, Asia

Nigeria Liquefied Natural Gas Limited (NLNG) – joint venture LNG company, largest shareholder is Nigerian National Petroleum Corporation Lagos, NIGERIA, Africa

Nigerian National Petroleum Corporation NNOC – commercial international corporationGarki, NIGERIA, Africa

Norsk Hydro – an industrial company based on the use of oil, natural gas, LNG resourcesOslo, NORWAY, Europe(North)

Northern Petroleum Plc – an oil and gas exploration, development and production company London, UK, Europe(North)

Nunaoil – Nunaoil is the National Oil Company of Greenland Nuuk, Greenland, Greenland

Occidental Petroleum Corporation – oil and natural gas exploration and productionLos Angeles, USA, America(North)

Ocean Power Technologies (OPT) – leading renewable energy company specializing in offshore wave power technology New Jersey, USA, America(North)OGDCL – Oil & Gas Development Company Ltd – leading, regional Pakistani E & P Company Islamabad, PAKISTAN, Asia

Oil Search – is an oil and gas exploration and development company Port Moresby, Papua New Guinea, Asia

Oilex Ltd – independent oil and gas exploration and production company Perth, Australia, Australia

Oilexco Inc – exploration and production company Calgary, CANADA, America(North)

OMV Exploration & Production GmbH – austrian oil gas exploration companiesWien, AUSTRIA, Europe(North)

Origin Energy – holds significant producing assets; operates onshore processing facilities; and holds a portfolio of onshore and offshore exploration permits Milton, Australia, Australia

Otto Energy – dynamic, rapidly growing oil and gas company Perth, Australia, Australia

Pars Oil & Gas Company (POGC), – a subsidiary of National Iranian Oil Company (NIOC Tehran, Iran, Middle East

PDVSA – Petroleos de Venezuela SA/CITGO – is responsible for the efficient, profitable, and dependable exploration, production, refining, transport and commerce of hydrocarbons. Caracas, VENEZUELA, America(South)

PEMEX (Petroleos Mexicanos) – develops all the productive chain of the industry, upstream, downstream and final product commercialization Mexico City, Mexico, America(North)

Pertamina – state-owned oil and gas company Jakarta, INDONESIA, Asia

Petoro AS – create lasting value from oil and gas through commercial operationsStavanger, Norway, Europe(North)

Petro Artic – Supplier network for petroleum projects in the far north Hammerfest, Norway, Europe(North)

Petro Kazakhstan – vertically, integrated, international energy company Calgary, Canada, America(North)

Petrobaltic – exploration and extraction of oil and gas from the offshore deposits in Poland Gdansk, Poland, Europe(North)

Petrobank Energy and Resources Ltd – Combines Canadian oil and gas operations with two CBM opportunities and 38 400 acres of oil sand leases Calgary, Canada, America(North)

PetroChina – is the largest oil/gas producer and distributor, playing a dominant role in the oil and gas industry in China Beijing, CHINA, Asia

Petroliam Nasional Berhad (PETRONAS) – is Malaysia’s national petroleum corporationKuala Lumpur, MALAYSIA, Asia

Petronas – is Malaysia’s national petroleum Kuala Lumpur, MALAYSIA, Asia

PetroSA – exploring, producing, refining and marketing petroleum oil, gas and petrochemicals PAROW, South Africa, Africa

Petrovietnam – operations from oil and gas exploration and production Hanoi, Vietnam, Asia

Petsec Energy – ncreasing oil and gas reserves through successful oil and gas exploration and acquisitions. Sydney, AUSTRALIA, Australia

Phillips Petroleum Company – exploration and production; gas gathering, processing and marketing Bartlesville, USA, America(North)

Pioneer Natural Resources Company – independent oil and natural gas exploration and production company Irving, USA, America(North) Premier Oil plc – independent oil and gas company London, UK, Europe(North)

Providence Resources Plc – international upstream oil and gas company Dublin, Ireland, Europe(North)

PTT Exploration and Production – a national petroleum exploration and production company Bangkok, Thailand, Asia

Queiroz Galvao – exploration and production drilling rigs and FPSO Rio de Janeiro, Brazil, America(South)

Ramco Energy plc – has exploration assets in Ireland and Montenegro and is currently evaluating other frontier exploration and oil services deals Aberdeen, SCOTLAND, Europe(North)

Reliance Industries Limited. – activities span exploration and production of oil and gas, petroleum refining and marketing, petrochemicals Ballard Estate, INDIA, Asia

Repsol YPF SA – integrated international oil and gas exploration and production company Madrid, SPAIN, Europe(South)Roc Oil Company Limited – is one of Australia’s leading independent oil and gas companies Sydney, AUSTRALIA, Australia

Rockhopper Exploration PLC – explore for oil and gas in the Falkland Islands Salisbury, UK, Europe(North)

Rocksource ASA – oil and gas exploration services Oslo, NORWAY, Europe(North)

Rosneft – russian oil and gas exploration company Moscow, RUSSIA, Europe(North)

RWE Dea AG – conducts international exploration for natural gas and crude oilHamburg, Germany, Europe(North)

Sakhalin Energy – commercially develop, operate and market the hydrocarbon resourcesYuzhno-Sakhalinsk, Russia, Europe(North)

Salamander Energy – is an Asia-focused independent exploration and production company London, UK, Europe(North)

Santos Ltd – is a major Australian oil and gas exploration and production companyAdelaide, Australia, Australia

Saudi Aramco – ully integrated international petroleum company with the world’s largest oil reserves. Dhahran, SAUDI ARABIA, Middle East

Sea Production Ltd – develops quality Floating Production Storage and Offloading (FPSO) and Floating Storage and Offloading (FSO) units Lysaker, Norway, Europe(North)

Sevan Marine – specializing in building, owning and operating floating units for offshore applications Tananger, NORWAY, Europe(North)

Sevmorneftegaz, CJSC – Development of oil and gas fields on Russia’s Arctic continental shelf Moscow, Russia, Europe(North)

Shell Technology Ventures, Inc. – developing new technologies that increase productivity, maximize efficiency, and promote sustainable development. Houston, USA, America(North)

Sibneft – petroleum exploration, production, refining, and marketing Moscow, RUSSIA, Europe(North)

Single Buoy Moorings Inc. – FPSO, floating production storage and offloading, FSO, floating storage and offloading, Marly, SWITZERLAND, Europe(North)

Sinvest ASA – long-term financial and strategic investor in oil- and offshore companies.Kristiansand, NORWAY, Europe(North)SOCAR – State Oil Company of Azerbaijan – is the government-owned entity responsible for all aspects of exploration and development related to oil and gas fields both onshore and offshore for the Republic of Azerbaijan Baku, Azerbaijan, Middle East

Spinnaker Exploration Company – independent energy production company Houston, USA, America(North)

Strat Petroleum Ltd – oil and natural gas exploration company New York, USA, America(North)

Sunoco – gas stations, crude oil production and petroleum products Philadelphia, USA, America(North)

Teekay Petrojarl – owns and operates four FPSOs in UK and Norwegian watersTrondheim, Norway, Europe(North)

Teikoku Oil – japan oil and gas exploration, production and pipeline Tokyo, JAPAN, Asia

Texaco – finds and produces LNG, crude oil and natural gas San Francisco, USA, America(North)

ThaiOil – modern processing technologies to produce petroleum products Bangkok, Thailand, Asia

The Korea National Oil Corporation – recognized national oil corporationDongan-gu Anyang-si, Korea, Asia

Tullow Oil – independant oil and gas production London, UK, Europe(North)

Unocal Corporation – oil and natural gas production and exploration development company El Segundo, USA, America(North)

Venture Production plc – oil and gas company focused on recapturing the potential of stranded reserves Aberdeen, SCOTLAND, Europe(North)

Vietsovpetro JVC – infrastructure and technical system that serve development of petroleum industry Vung Tau City, Vietnam, Asia

WHAM Energy Plc – exploration for and development of oil and gas resources London, UK, Europe(North)

Wintershall – actively involved in the exploration and production of crude oil and natural gas Kassel, Germany, Europe(North)

Woburn Energy Plc – is engaged in oil and gas exploration. London, UK, Europe(North)Alwarid Oil Services Company, alwaridoil.com, LibyaAban Offshore Oil CompanyAbu Dhabi National Oil Company (ADNOC), United Arab EmiratesAgip Petroli S.p.AAinMine PetroleumAker Geo AS, NorwayAlon USA, Dallas, Texas, United States of AmericaAmerican Eagle Oilfield Services & Supplies, Inc., Katy, Texas, United States of America; IndependentAnadarko Petroleum Corporation, The Woodlands, Texas, United States of America; IndependentANCAP, UruguayApache Corporation, Houston, Texas, United States of America; IndependentArabian Gulf Oil Company (AGOCO), LibyaArbusto Energy, dba: Spectrum 7, United States of America, Saudi Arabian, and possibly Swiss ownership. Bought out by Harken Oil & Gas in 1986Assam Oil Company Ltd. (ACL), IndiaAtlantic Petroleum, Faroe IslandsAthlone Group, United KingdomBharat Petroleum Corporation Limited, IndiaBG Group, United KingdomBHP Billiton, AustraliaBritish Petroleum (BP), United KingdomCairn Energy, United KingdomCanadian Natural Resources, CanadaChevron Corporation, San Ramon, California, United States of AmericaChem-Energy Corporation, United States of AmericaChestnut Petroleum, Inc., Richardson, Texas, United States of AmericaChief Oil and Gas, Dallas, Texas, United States of AmericaCitgo, Venezuela

CNOOC Ltd., ChinaConocoPhillips, United States of AmericaCooper Energy, AustraliaCosmo Oil Company, JapanCrown Central Petroleum, United States of AmericaCupet, CubaDenbury Resources, Inc., United States of AmericaDet Norske Oljeselskap ASA, NorwayDevon Energy, United States of AmericaDong, DenmarkEcopetrol, ColombiaEdoardo Raffinerie Garrone, ItalyEmpresa Nacional del Petróleo (ENAP), ChileEnbridge, CanadaEnCana, CanadaEnergi Mega Persada, IndonesiaEnergopetrol, BosniaENSCO International, United States of AmericaEni, ItalyENX, SwitzerlandENXRU, RussiaEssar oil ltd., IndiaEntreprise Tunisienne d’Activites Petroliere (ETAP), TunisiaEser Corporation, United States of AmericaExxonMobil, United States of AmericaFirst Texas Energy Corporation, United States of AmericaFinnburg Switzer, United KingdomGalp Energia, PortugalGazprom, RussiaGeoexploration india, IN, IndiaGlobal Energy Swiss AG, ZUG, SwizterlandGreka Energy, United States of AmericaGrupa LOTOS, PolandGujarat Gas Co. Ltd., IndiaGujarat State Petroleum Corporation, IndiaGulf Oil, LuxembourgHarken Energy Corporation, dba: HKN Southlake, Texas, United States of America of AmericaHellenic Petroleum, GreeceHess Corporation, United States of AmericaHindustan Petroleum Corporation Ltd, IndiaHusky Energy, CanadaIB Daiwa, JapanImperial Oil, CanadaINA – Industrija Nafte, CroatiaIndian Oil Corporation, IndiaInpex, Japan

Irkutsk Oil Company, RussiaIrving Oil, CanadaIQ Petroleum, USAJapan Energy, JapanJapan Petroleum Exploration Company Limited (JAPEX), JapanJay Oil, IranKaz-Munay Gaz, KazakhstanKarazhanbas Munay, KazakhstanKorea National Oil Corporation(KNOC), South KoreaKoch Industries, United States of AmericaKuwait German Petroleum Company, CanadaKuwait Gulf Oil Company, KuwaitKuwait National Petroleum Company Kuwait.Kuwait Oil Company, KuwaitKuwait Petroleum Corporation, KuwaitLeowit Group Ltd, Hong KongLUKoil, RussiaM3nergy Gamma SDN. BHD., MalaysiaMaersk, DenmarkMarathon Oil Corporation, United States of AmericaMaurel & Prom, FranceMari Gas Company Limited, PakistanMaxol Group, Republic of IrelandMedcoEnergi, IndonesiaMisc, MalaysiaMOL Group, HungaryNaftna Industrija Srbije, SerbiaNaftogas of Ukraine, UkraineNational Iranian Oil Company (NIOC), IranNational Oil Corporation, LibyaNeste Oil, FinlandNexen, CanadaNippon Oil, JapanNNPC, NigeriaOil and Gas Development Company Limited[1], PakistanOccidental Petroleum, United States of AmericaOil India Limited, IndiaOman Oil Company (OOC), OmanOMV, AustriaONGC, IndiaPKN Orlen S.A., PolandPacific Rubiales Energy, CanadaPSO, PakistanPakistan Petroleum PakistanPasargad Oil, IranPertamina, Indonesia

Petróleos Mexicanos, MexicoPetróleos de Venezuela, VenezuelaPetroAlam, EgyptPetroleum Development Oman,(PDO)Perenco, France, United KingdomPetro-Canada, CanadaPetrobras, BrazilPetroChina, ChinaPetroecuador, EcuadorPetroKazakhstan, KazakhstanPetrom, RomaniaPetron Corporation, PhilippinesPETRONAS, MalaysiaPetronet LNG Limited, IndiaPetropars Ltd., IranPetroperu, PeruPETROTRIN, Trinidad and TobagoPetroVietnam, VietnamPolish Oil and Gas Company, PolandPlains Exploration & Production Company (PXP), United States of AmericaPTT Public Company Limited, ThailandQatar Petroleum, QatarQuestar, United States of AmericaReliance Industries Limited, IndiaRepsol YPF, SpainRevus, NorwayRompetrol, RomaniaRosneft, RussiaRoyal Dutch Shell, Netherlands, United KingdomRussneft, RussiaRWE Dea AG, GermanySagiz Petroleum, KazakhstanSamir (Société Anonyme Marocaine de l’Industrie du Raffinage), MoroccoSan-Ai Oil, JapanSantos Limited, AustraliaSasol, South AfricaSaudi Aramco, Saudi Arabia (the largest in the world)Shell Canada, Canada (subsidiary of Royal Dutch Shell)Shell Oil Company, United States of America (subsidiary of Royal Dutch Shell)Sinclair Oil, United States of AmericaSinopec, ChinaSnpc, Congo-BrazzavilleSonangol, AngolaSonatrach, AlgeriaSovereign Group, USA, RussiaSingapore Petroleum Company, Singapore

Statoil, NorwayState Oil Company of Azerbaijan, SOCAR AzerbaijanSomerset Refinery, United States of AmericaSt. Mary Land & Exploration, United States of AmericaState Oil Company of Suriname, SurinameSuncor Energy, CanadaSurgutneftegaz, RussiaSyncrude, CanadaTalisman Energy, CanadaTesoro, United States of AmericaTexaco, United States of AmericaTHUMS, United States of AmericaTodd Energy, New ZealandTotal S.A., FranceTullow Oil, United KingdomTürkiye Petrolleri Anonim Ortaklığı (TPAO), TurkeyUnited Refining Company, United States of AmericaUcimet Ltd, UKVaalco Energy Inc., United States of AmericaValero Energy Corporation, United States of AmericaVegas Oil and Gas (Kriti), EgyptVenoco Inc., United States of AmericaWintershall, GermanyWoodside Petroleum, AustraliaXTO Energy, United States of AmericaYPF, ArgentinaYPFB, BoliviaZorro Oil, JemberGhawar Field location in Saudi ArabiaBurgan Field location in KuwaitFerdows/Mound/Zagheh Field location in IranSugar Loaf field location in BrazilCantarell Field location in MexicoBolivar Coastal Field location in VenezuelaAzadegan field location in IranTupi Field location in Santos Basin, BrazilSafaniya-Khafji Field location in Saudi Arabia/Neutral ZoneEsfandiar Field location in IranRumaila Field location in IraqTengiz Field location in KazakhstanAhwaz Field location in IranKirkuk Field location in IraqShaybah Field location in Saudi ArabiaAgha Jari Field location in IranMajnoon Field location in IraqSamotlor Field location in West Siberia, Russia

Romashkino Field location in Volga-Ural, RussiaPrudhoe Bay location in United States, AlaskaSerir Field location in LibyaPriobskoye field location in West Siberia, RussiaLyantorskoye field location in West Siberia, RussiaAbqaiq Field location in Saudi ArabiaChicontepec Field location in MexicoBerri Field location in Saudi ArabiaZakum Field location in Abu Dhabi, UAEWest Qurna Field location in IraqManifa Field location in Saudi ArabiaFyodorovskoye Field location in West Siberia, RussiaEast Baghdad Field location in IraqFaroozan-Marjan Field location in Saudi Arabia/IranMarlim Field location in Campos Basin, BrazilAwali location in BahrainAghajari Field location in IranAhvaz Field location in IranAzadegan Field location in IranGachsaran Field location in IranMarun Field location in IranMesopotamian Foredeep Basin location in KuwaitMinagish location in KuwaitRaudhatain location in KuwaitSabriya location in KuwaitYibal location in OmanDukhan Field location in QatarHalfaya Field location in IraqAz Zubayr Field location in IraqNahr Umr Field location in IraqAbu-Sa’fah field location in OmanHassi Messaoud location in AlgeriaKizomba Complex location in AngolaDalia (oil field) location in AngolaBelayim location in AngolaZafiro location in AngolaSerir field location in LibyaZelten oil field location in LibyaAgbami Field location in NigeriaBonga Field location in NigeriaAzeri-Chirag-Guneshli location in AzerbaijanShah Deniz location in AzerbaijanKarachaganak Field location in KazakhstanKashagan Field location in KazakhstanBombay High location in IndiaMangala Area location in India

Toot oilfield location in PakistanKurmangazy Field location in KazakhstanDarkhan Field location in KazakhstanZhanazhol Field location in KazakhstanUzen Field location in KazakhstanKalamkas Field location in KazakhstanZhetybay Field location in KazakhstanNursultan Field location in KazakhstanEkofisk oil field location in NorwayTroll Vest location in NorwayStatfjord location in NorwayGullfaks location in NorwayOseberg location in NorwaySnorre location in NorwayMamontovskoye Field location in RussiaRusskoye Field location in RussiaKamennoe Field location in RussiaVankor Field location in RussiaVatyeganskoye Field location in RussiaTevlinsko-Russkinskoye Field location in RussiaSutorminskoye Field location in RussiaUrengoy group location in RussiaUst-Balykskoe Field location in RussiaTuymazinskoe Field] location in RussiaArlanskoye Field location in RussiaSouth-Hilchuy Field location in RussiaNorth-Dolginskoye Field location in RussiaNizhne-Chutinskoe Field location in RussiaSouth-Dolginskoye Field location in RussiaPrirazlomnoye Field location in RussiaWest-Matveevskoye Field location in RussiaSakhalin Islands location in RussiaOdoptu location in RussiaArukutun-Dagi location in RussiaPiltun-Astokhskoye Field location in RussiaAyash Field East-Odoptu Field location in RussiaVerhne-Chonskoye Field location in RussiaTalakan Field location in RussiaNorth-Caucasus Basin location in RussiaClair oilfield location in United KingdomForties oilfield location in United KingdomTupi (oil field) location in BrazilJupiter field location in BrazilCupiagua/Cusiana location in ColombiaBoscán Field, Venezuela location in VenezuelaHibernia location in Canada

Terra Nova Field location in CanadaSACROC location in United StatesYates Oil Field location in United StatesKuparuk oil field location in United StatesAlpine location in United StatesEast Texas Oil Field location in United StatesSpraberry Trend location in United StatesWilmington Oil Field location in United StatesSouth Belridge Oil Field location in United StatesCoalinga Oil Field location in United StatesElk Hills location in United StatesKern River location in United StatesMidway-Sunset Field location in United StatesThunder Horse Field location in United StatesKingfish location in AustraliaHalibut location in AustraliaDaqing Field location in ChinaJidong Field location in ChinaTahe Field location in ChinaNanpu Oil Field location in China

ADNOC – Abu Dhabi National Oil Company – state owned oil gas exploration company Contact: , Phone: (+971) 26 02 00 00, Fax: (+971) 26 02 33 89 Abu Dhabi, UAE, Middle East www.adnoc.com

BG Group plc – exploration and production, liquefied natural gas, transmission and distribution Contact: , Phone: +44 (0) 118 935 3222, Fax: +44 (0) 118 935 3484Berkshire, UK, Europe(North) www.bg-group.com

BP – a leading provider of oil and natural gas exploration and productionContact: , Phone: (+4412) 24 83 20 00, Fax: Aberdeen, SCOTLAND, Europe(North)www.bp.com

Chevron Corporation – oil and gas exploration and production operations around the world Contact: , Phone: +1 925-842-1000, Fax: San Ramon, USA, America(North)www.chevron.com

ConocoPhillips – an international, integrated oil gas exploration and production company Contact: , Phone: (+128) 12 93 10 00, Fax: Houston, USA, America(North)www.conocophillips.com

DNO – development of smaller petroleum fieldsContact: , Phone: (+47) 23 23 84 80, Fax: (+47) 23 23 84 81 Oslo, NORWAY, Europe(North) www.dno.no

Exxon Mobil Corporation – world’s premier oil, natural gas, LNG and petroleum products company Contact: , Phone: , Fax: Houston, USA, America(North)www.exxonmobil.com

Gazprom – is the world’s biggest gas exploration and production companyContact: , Phone: (+709) 57 19 30 01, Fax: (+709) 57 19 83 33 Moscow, RUSSIA, Europe(North) www.gazprom.ru

Hess Corporation – independent oil gas exploration services and processing company Contact: , Phone: (+121) 29 97 85 00, Fax: New York, USA, America(North)www.hess.com

ONGC – Oil and Natural Gas Corp Ltd – leading National Oil GAS exploration Company of India Contact: , Phone: +9101123301000, Fax: +9101123316413New Delhi, INDIA, Asia www.ongcindia.com

Petrobras – brazilian integrated corporation whose business is oil and natural gas exploration, production Contact: , Phone: (+5521) 25 34 12 95, Fax: (+5521) 25 34 37 61 Rio de Janeiro, BRASIL, America(South) www.petrobras.com.br

PetroCanada – is a Canadian integrated oil and gas exploration and production companyContact: , Phone: (+140) 32 96 80 00, Fax: (+140) 32 96 30 30Calgary, CANADA, America(North) www.petro-canada.ca

Prosafe ASA – production drilling, owner and operator of accommodation/service rigs and FPSOs/FSOs Contact: Karine Cosemans, Phone: (+47) 51 64 25 00, Fax: (+47) 51 64 25 01 Tananger, NORWAY, Europe(North) www.prosafe.com

Shell Oil Company – is one of the largest major oil and natural gas companiesContact: , Phone: (+171) 32 41 61 61, Fax: (+171) 32 41 40 44 Houston, USA, America(North) www.shell.com

Sonangol – angola oil gas exploration and production companyContact: , Phone: (+24) 42 33 44 48, Fax: (+24) 42 39 17 82 Luanda, ANGOLA, Africawww.sonangol.com

StatoilHydro – one of the world’s largest net sellers of crude oil. operator of fields, exploration Contact: , Phone: (+47) 51 99 00 00, Fax: (+47) 51 99 00 50Stavanger, NORWAY, Europe(North) www.statoilhydro.com

Talisman Energy Inc. – is an independent upstream oil and gas company headquartered in Calgary, Alberta, Canada. Contact: , Phone: (+140) 32 37 12 34, Fax: (+140) 32 37 19 02 Calgary, CANADA, America(North) www.talisman-energy.com

Total – major integrated oil and gas exploration corporationContact: , Phone: (+331) 47 44 45 46, Fax: (+331) 47 44 78 78 Courbevoie, FRANCE, Europe(South) www.total.com

Woodside Petroleum – is involved in the exploration, development and production of hydrocarbons Contact: , Phone: (+618) 93 48 40 00, Fax: (+618) 93 48 55 39Perth, AUSTRALIA, Australia www.woodside.com.au

TAQA – ownstream, midstream and upstream energy companyContact: , Phone: +971 02 691 4900, Fax: +971 02 641 3286 Abu Dhabi, UAE, Middle East www.taqa.ae

Bergesen Worldwide Offshore AS – dependable FPSO pioneer, providing versatile solutions driven by customer needs Oslo, NORWAY, Europe(North)

Det norske oljeselskap ASA – is an innovative, independent and aggressive oil companyTrondheim, Norway, Europe(North)

GASSCO AS – The independent operator of the gas transport system from the Norwegian continental shelf to Europe. Haugesund, Norway, Europe(North)

Husky Energy – is one of Canada’s largest energy and energy-related companiesCalgary, CANADA, America(North)Kerr-McGee – is one of the largest U.S.-based independent crude oil exploration and production companies Oklahoma City, USA, America(North)

Lundin Petroleum – independent oil and gas exploration and production companyStockholm, SWEDEN, Europe(North)

Nexen – is a Canadian-based, global oil gas petroleum companyAlberta, CANADA, America(North)

Sinopec – China Petroleum & Chemical CorporationBeijing, CHINA, Asia

Apache Corporation – is an independent energy company that explores for, develops and produces natural gas, crude oil and natural gas liquidsHouston, USA, America(North)

SNEPCO – nigerian oil gas exploration and production activities Lagos, NIGERIA, Africa

Petropars – developer of exploration, exploitation and production in upstream, downstream and peripheral industries of oil and gas Tehran, Iran, Middle EastAED OIL Limited – acquiring, developing and commercialising specified oil fields and undertaking oil exploration Melbourne, Australia, Australia.