Oil Company Directory
A directory of 64 oil and gas companies: who owns each one, the countries and basins where it operates, and its stock ticker. 26 are state-owned or state-controlled; the rest are publicly traded majors and independents or large private producers. Filter by owner type, country or US basin, and see the mergers that reshaped US shale in the table below.
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64 companies| Company | Type | Who owns it | Operates in | Basins and fields | Ticker |
|---|---|---|---|---|---|
| ADNOC United Arab Emirates · Crude oil, gas and downstream |
National oil company (state-owned or state-controlled) | State-owned Wholly owned by the Government of Abu Dhabi; the parent company is not listed. The UAE left OPEC and OPEC+ on 1 May 2026; ADNOC states a maximum sustainable capacity of 4.85 million b/d and aims for 5 million b/d by 2027. |
United Arab Emirates | Onshore Abu Dhabi fields; Offshore Abu Dhabi (Upper Zakum, Lower Zakum) | — |
| Basra Oil Company (Iraq) Iraq · Southern Iraq oil production, run with international service-contract partners |
National oil company (state-owned or state-controlled) | State-owned A state company under Iraq's Ministry of Oil and a subsidiary of the Iraq National Oil Company (INOC). Iraq's cabinet moved West Qurna-2 (about 460,000 b/d) from Lukoil to Basra Oil Company in early 2026 after US sanctions on Lukoil. |
Iraq | Rumaila; Majnoon; West Qurna fields (southern Iraq) | — |
| CNOOC Limited China · Offshore oil and gas exploration and production |
National oil company (state-owned or state-controlled) | Listed, state-controlled State-controlled: CNOOC (BVI) Limited, a state-owned entity, held about 60.5% of CNOOC Limited as of the third quarter of 2025, per the company's quarterly report. The company was forced out of the NYSE in 2021 after US action over alleged military ties; it trades in Hong Kong and Shanghai. |
China, Guyana | Bohai Bay (offshore China); South China Sea (offshore China); Stabroek Block, Guyana (25% interest) | 0883 HKEX |
| CNPC / PetroChina China · Integrated oil, gas and refining |
National oil company (state-owned or state-controlled) | Listed, state-controlled State-owned: China National Petroleum Corporation (CNPC) held about 82.4% of listed PetroChina at the end of 2025 (82.19% directly plus 0.17% through Fairy King Investments), per PetroChina's 2025 annual report. PetroChina voluntarily delisted its New York ADSs in 2022 and now trades only in Hong Kong and Shanghai; CNPC itself also holds overseas upstream positions. |
China | Daqing oilfield (Songliao Basin); Changqing oilfield (Ordos Basin); Tarim Basin; Sichuan Basin gas | 0857 HKEX |
| Ecopetrol Colombia · Colombian oil and gas with a US Permian position |
National oil company (state-owned or state-controlled) | Listed, state-controlled The Colombian Ministry of Finance owns 88.49% of the shares and 11.51% is publicly traded in Colombia and New York (FY2025 Form 20-F). Ecopetrol Permian planned about 91 development wells in 2025; group output was 745.3 mboe/d in 2025. |
Colombia, United States | Llanos Basin (Cano Sur, CPO-09); Permian Basin, Midland and Delaware (Ecopetrol Permian, with Occidental) | EC NYSE (ADS) |
| Eni Italy · Integrated oil and gas |
National oil company (state-owned or state-controlled) | Listed, state-controlled The Italian Ministry of Economy and Finance has de facto control with about 33.1% of the shares: 2.17% directly and about 30.9% through Cassa Depositi e Prestiti. 2025 production was 1.73 million boe/d, with Egypt 242, Libya 155 and Italy 65 kboe/d; Eni has divested Alaska, Nigeria and Congo assets. |
Italy, Egypt, Libya, Norway, Kazakhstan, Indonesia, Angola, United Arab Emirates | Egyptian offshore (Zohr); Libya (Western Libyan Gas Project); Norwegian continental shelf; Kazakhstan (Kashagan, Karachaganak); Italian onshore and offshore fields | E NYSE (ADS); also Milan |
| Equinor Norway · Offshore oil and gas, with growing renewables |
National oil company (state-owned or state-controlled) | Listed, state-controlled The Norwegian state owns about 67% of the shares; it is redeemed pro rata in Equinor's buybacks to hold that level. Sold its Bakken position in 2021 and its Vaca Muerta stakes (Argentina) to Vista Energy, which reported closing on 7 May 2026. |
Norway, United States, Brazil, United Kingdom | Norwegian continental shelf; Appalachian Basin (Marcellus); Bacalhau, Santos Basin pre-salt (started October 2025) | EQNR NYSE (ADS); also Oslo |
| KazMunayGas Kazakhstan · Kazakhstan's national oil and gas company |
National oil company (state-owned or state-controlled) | State-owned Samruk-Kazyna held 90.42% and the National Bank of Kazakhstan 9.58% before the 2022 IPO; afterwards Samruk-Kazyna held about 87.4%, the National Bank 9.58% (in Samruk-Kazyna's trust management) and about 3% is free float. Valued mainly for its consortium stakes in the large Caspian fields alongside Chevron, ExxonMobil, Shell and Eni. |
Kazakhstan | Mangystau and Atyrau regions (onshore); Minority stakes in the Tengiz and Kashagan consortia | KMGZ KASE |
| Kuwait Petroleum Corporation (KPC) Kuwait · Crude oil, refining, petrochemicals and marketing |
National oil company (state-owned or state-controlled) | State-owned Entirely owned by the State of Kuwait; upstream is run through its subsidiary Kuwait Oil Company. Subsidiaries include Kuwait Oil Company (upstream), KNPC (refining), KUFPEC (overseas exploration) and KIPIC (Al-Zour complex). |
Kuwait | Burgan field (supergiant); Partitioned Zone fields shared with Saudi Arabia (Wafra, Khafji) | — |
| Libya National Oil Corporation (NOC) Libya · Libya's state oil company; partners operate most fields through subsidiaries |
National oil company (state-owned or state-controlled) | State-owned Owned by the Government of Libya; founded in 1970. Production was reported at 1.5 million b/d on 21 June 2026, the highest since 2013, with a 1.6 million b/d target for end-2026; ConocoPhillips agreed to extend the Waha concession to 2050, subject to approvals. |
Libya | Sirte Basin (about 90% of Libyan output); Murzuq Basin and offshore fields | — |
| National Iranian Oil Company (NIOC) Iran · Crude oil and natural gas |
National oil company (state-owned or state-controlled) | State-owned Government-owned; Iran's Minister of Petroleum chairs the board. Facilities at South Pars and Kharg Island were targeted in strikes in 2026; see the Strait of Hormuz timeline for the sourced sequence. |
Iran | Khuzestan onshore oilfields; South Pars gas field (shared with Qatar's North Field); Offshore Persian Gulf fields | — |
| NNPC Ltd Nigeria · Crude oil, gas and downstream |
National oil company (state-owned or state-controlled) | State-owned Shares are held in equal portions by the Ministry of Finance Incorporated and the Ministry of Petroleum Incorporated on behalf of the federal government; it became a limited company under the 2021 Petroleum Industry Act. Partners in most Nigerian production through joint ventures and production-sharing contracts. |
Nigeria | Niger Delta onshore and shallow water joint ventures | — |
| ONGC India · India's largest crude oil and gas producer |
National oil company (state-owned or state-controlled) | Listed, state-controlled The Government of India held about 58.9% of the shares as of mid-2026. Its overseas arm ONGC Videsh holds foreign stakes. |
India | Mumbai High (offshore); Krishna-Godavari Basin (offshore); Assam onshore fields | ONGC NSE |
| PDVSA Venezuela · Crude oil, mostly heavy grades |
National oil company (state-owned or state-controlled) | State-owned Owned by the Venezuelan state. Venezuela's hydrocarbons law was overhauled on 29 January 2026 to let private and foreign firms operate fields; Chevron raised its stake in the Petroindependencia joint venture with PDVSA to 49% in April 2026. |
Venezuela | Orinoco Belt (extra-heavy crude); Maracaibo basin (Zulia) | — |
| Pemex Mexico · Crude oil, gas, refining |
National oil company (state-owned or state-controlled) | State-owned Owned by the Mexican federal government. Output was reported about 150,000 b/d below its 1.8 million b/d government target in 2026, with continued federal financial support. |
Mexico | Cantarell and other Bay of Campeche offshore fields; Southeastern Mexico onshore fields | — |
| Pertamina Indonesia · Oil, gas, refining and fuel distribution |
National oil company (state-owned or state-controlled) | State-owned Indonesian state-owned; one of the state enterprises brought under the Danantara state investment agency. Its overseas arm Pertamina International EP also holds Malaysian blocks SK309 and SK311. |
Indonesia, Iraq, Algeria, Malaysia | Indonesian onshore and offshore blocks; West Qurna 1, Iraq (technical service contract); Block 405a, Algeria | — |
| Petrobras Brazil · Offshore oil and gas, refining |
National oil company (state-owned or state-controlled) | Listed, state-controlled The Brazilian federal government held 50.26% of the voting (common) shares at 31 December 2025, the legal minimum for control; non-voting preferred shares are widely held (FY2025 Form 20-F). Brazil's national oil company; ADSs trade in New York and the shares on B3 in Sao Paulo. |
Brazil | Santos Basin pre-salt; Campos Basin | PBR NYSE (ADS) |
| Petronas Malaysia · Oil, gas and LNG |
National oil company (state-owned or state-controlled) | State-owned Wholly owned by the Government of Malaysia, held through Minister of Finance (Incorporated). Plans to hold Malaysian output near 2 million boe/d through 2028 and holds Montney resource in British Columbia. |
Malaysia | Offshore Peninsular Malaysia; Offshore Sarawak and Sabah | — |
| QatarEnergy Qatar · LNG, natural gas and crude oil |
National oil company (state-owned or state-controlled) | State-owned Wholly owned by the Government of Qatar. Is expanding LNG capacity from 77 million tonnes a year through the North Field East and South projects; ConocoPhillips is an equity partner and guided North Field East startup to the second half of 2026. |
Qatar | North Field (offshore gas, shared with Iran's South Pars); Dukhan field (onshore oil); Offshore oilfields | — |
| Rosneft Russia · Crude oil production, refining and marketing |
National oil company (state-owned or state-controlled) | Listed, state-controlled Controlled by the Russian state: JSC Rosneftegaz, which is 100% federally owned, held about 40.4% in Rosneft's published shareholder structure (page dated July 2021). BP announced in 2022 that it would exit its 19.75% stake; its current status was not verified. The US Treasury designated Rosneft and Lukoil on the SDN list on 22 October 2025; Rosneft's German units received a temporary US licence valid to 29 April 2026 (later status not verified). |
Russia | West Siberia; Eastern Siberia | ROSN Moscow Exchange |
| Saudi Aramco Saudi Arabia · Crude oil, natural gas, refining and chemicals |
National oil company (state-owned or state-controlled) | Listed, state-controlled The Saudi government holds about 81.5% directly and the Public Investment Fund (with Sanabil and other PIF-owned entities) about 16.0%; the public float is about 2.5% (Aramco 2025 annual report, as of 31 December 2025). The government moved 4% of the shares to PIF in 2022, 4% to PIF's Sanabil Investments in 2023 and a further 8% to PIF-owned companies in March 2024. |
Saudi Arabia | Eastern Province onshore fields (including Ghawar); Offshore Persian Gulf fields | 2222 Saudi Exchange (Tadawul) |
| Sinopec China · Refining and chemicals, with domestic oil and gas production |
National oil company (state-owned or state-controlled) | Listed, state-controlled State-owned: China Petrochemical Corporation (Sinopec Group) directly and indirectly held about 69.4% of Sinopec Corp at the end of 2024 and was reported at roughly 69.6% to 70% during 2025. Sinopec voluntarily delisted its New York ADSs in 2022; the parent raised its stake to about 69.95% in 2025 through share purchases. |
China | Shengli oilfield (Bohai Bay Basin); Tahe oilfield (Tarim Basin); Puguang gas field (Sichuan Basin) | 0386 HKEX |
| Sonangol Angola · Crude oil and downstream |
National oil company (state-owned or state-controlled) | State-owned Owned by the Government of Angola; a partial privatisation of up to about 30% has been planned by 2027. Angola left OPEC in December 2023; Sonangol handed its regulator role to the ANPG agency in 2019 and produced about 202,000 b/d in 2023. |
Angola | Offshore Angola concessions | — |
| Sonatrach Algeria · Crude oil, natural gas and LNG |
National oil company (state-owned or state-controlled) | State-owned Owned by the Algerian government. Works with partners including Eni, TotalEnergies, Occidental and PTTEP; construction on the Algerian segment of the Trans-Saharan gas pipeline began in June 2026. |
Algeria | Hassi Messaoud; Hassi R'Mel gas field; Berkine Basin | — |
| YPF Argentina · Argentine oil and gas, led by Vaca Muerta shale |
National oil company (state-owned or state-controlled) | Listed, state-controlled The Argentine state, through the Ministry of Economy, holds 51% of the capital (200,589,525 Class D shares) per YPF's FY2024 Form 20-F; the rest floats, with ADRs about 30.9% of Class D shares. A US appeals court overturned the US$16.1 billion judgment against Argentina over YPF's 2012 nationalisation on 27 March 2026 (2-1 ruling). |
Argentina | Vaca Muerta shale, Neuquen Basin (about 200,000 b/d of shale oil in November 2025); Conventional fields | YPF NYSE (ADS) |
| BP United Kingdom · Integrated oil and gas |
Integrated major | Publicly traded Publicly traded; no controlling shareholder. Sold its Egypt and Trinidad upstream stakes in late 2024, agreed in December 2025 to sell 65% of Castrol to Stonepeak, and launched a sale process for its North Sea business in 2026; Woodside's Meg O'Neill was named its CEO. |
United States, United Kingdom, Azerbaijan | bpx energy onshore: Permian, Eagle Ford and Haynesville; Gulf of America deepwater; UK North Sea; Azerbaijan (ACG) | BP $49.34 -1.74% |
| Chevron United States · Integrated oil and gas |
Integrated major | Publicly traded Publicly traded; no controlling shareholder. Closed the Hess acquisition on 18 July 2025 after the Guyana arbitration was resolved in its favour, and lifted its Petroindependencia stake to 49% in Venezuela in April 2026. |
United States, Kazakhstan, Guyana, Australia, Venezuela | Permian Basin; DJ Basin (Colorado); Bakken (Williston Basin, via Hess); Gulf of America deepwater; Tengizchevroil, Kazakhstan; Stabroek Block, Guyana (30%, via Hess); Gorgon LNG, Western Australia; Venezuela heavy-oil joint ventures with PDVSA | CVX $223.50 -0.66% |
| ConocoPhillips United States · Global exploration and production |
Integrated major | Publicly traded Publicly traded; no controlling shareholder. Closed Marathon Oil on 22 November 2024; Q2 2026 Lower 48 output was 1,479 Mboe/d, and it was reported in October 2026 to be exploring a sale of its Norway business. |
United States, Norway, Canada, Libya, Qatar | Delaware Basin (about 720 Mboe/d in Q2 2026); Midland Basin; Eagle Ford; Bakken; Alaska North Slope (Willow, early oil targeted 2029); Surmont oil sands, Canada; Waha concession, Libya; North Field LNG equity, Qatar | COP $144.51 -1.36% |
| ExxonMobil United States · Integrated oil, gas and chemicals |
Integrated major | Publicly traded Publicly traded; no controlling shareholder. Closed Pioneer on 3 May 2024; 2025 US net output was 2.1 million boe/d with the Permian at 1.6 million, and its XTO unit sold 48,000 net Williston acres to Chord for $550 million in October 2025. |
United States, Guyana, Canada, Papua New Guinea, Kazakhstan, Qatar | Permian Basin (Delaware and Midland, including Pioneer); Bakken (Williston Basin); Appalachia; Stabroek Block, Guyana (45%; over 700,000 b/d gross in 2025); Canadian oil sands via Imperial Oil (about 69.6% owned) | XOM $177.46 -0.85% |
| Shell United Kingdom · Integrated oil, gas and LNG |
Integrated major | Publicly traded Publicly traded; no controlling shareholder. Closed the ARC Resources acquisition on 2 September 2026 (about US$16.5 billion enterprise value, adding about 370,000 boe/d); it sold its Permian business to ConocoPhillips in 2021 and finished the sale of its onshore Nigeria unit SPDC in 2025. |
United States, Canada, Brazil, Nigeria, Oman, Kazakhstan | Deepwater Gulf of America; Brazil pre-salt; Montney, British Columbia and Alberta (through ARC Resources); Oman; Kazakhstan; Offshore Nigeria | SHEL $105.14 -1.43% |
| TotalEnergies France · Integrated oil, gas and LNG |
Integrated major | Publicly traded Publicly traded; no controlling shareholder. Lifted force majeure on Mozambique LNG with first LNG targeted for 2029, and holds 40% of Suriname's GranMorgu project, with first oil guided for 2028. |
Brazil, Nigeria, Angola, United States | Brazil pre-salt (Mero); Offshore Nigeria (Akpo West started 2024); Offshore Angola (Begonia and CLOV Phase 3); Eagle Ford dry gas, Texas (45% interest) | TTE $90.11 -1.35% |
| Antero Resources United States · Natural gas and liquids, Appalachia |
Independent producer (public) | Publicly traded Publicly traded; no controlling shareholder. Closed the $2.8 billion HG Energy acquisition on 3 February 2026 and sold its Ohio Utica assets for $800 million on 23 February 2026; it expects about 4.2 Bcfe/d afterwards. |
United States | Marcellus Shale, West Virginia | AR $38.74 +0.23% |
| APA Corporation United States · Oil and gas exploration and production |
Independent producer (public) | Publicly traded Publicly traded; no controlling shareholder. Holds 40% of Suriname's GranMorgu project (first oil guided for 2028); production from the Permian, Egypt and North Sea was 410,000 boe/d in Q2 2026. |
United States, Egypt, United Kingdom | Permian Basin (Midland and Delaware); Egypt Western Desert; UK North Sea | APA $49.08 -0.15% |
| Canadian Natural Resources Canada · Oil sands, heavy oil and gas |
Independent producer (public) | Publicly traded Publicly traded; listed in Toronto and New York. Record 2025 production of about 1,571,000 boe/d, up 15%; oil sands mining and upgrading made up 36% and natural gas 27% of output. |
Canada | Athabasca oil sands mining and upgrading (Horizon); Heavy oil and thermal in Alberta and Saskatchewan; Montney and Deep Basin gas, Alberta and British Columbia; Small North Sea and offshore Africa segment | CNQ NYSE |
| Cenovus Energy Canada · Integrated oil sands producer with refining |
Independent producer (public) | Publicly traded Publicly traded; listed in Toronto and New York. Closed the MEG Energy acquisition on 13 November 2025, adding about 110,000 b/d; Christina Lake output reached 358,900 b/d in Q1 2026. |
Canada, China, Indonesia | Christina Lake and Foster Creek oil sands (including MEG); Lloydminster thermal and heavy oil (Sunrise); West White Rose, Newfoundland offshore; Asia Pacific offshore | CVE NYSE |
| Chord Energy United States · Williston Basin oil |
Independent producer (public) | Publicly traded Publicly traded; no controlling shareholder. Closed the roughly $4 billion Enerplus acquisition on 31 May 2024 and bought 48,000 net Williston acres from ExxonMobil's XTO for $542 million on 31 October 2025. |
United States | Williston Basin (Bakken), North Dakota and Montana | CHRD NASDAQ |
| CNX Resources United States · Natural gas, Appalachia |
Independent producer (public) | Publicly traded Publicly traded. Guides to 605 to 620 Bcfe of 2026 production. |
United States | Marcellus Shale, Southwest Pennsylvania; Utica Shale, Central Pennsylvania (deep Utica) | CNX NYSE |
| Comstock Resources United States · Natural gas |
Independent producer (public) | Publicly traded Publicly traded and controlled by Jerry Jones: entities he controls held 70.9% of the common stock as of 7 April 2026 (proxy statement). A $1.65 billion Haynesville partnership with SOCAR advanced to a framework agreement on 28 September 2026. |
United States | Haynesville and Bossier shales, East Texas and North Louisiana (including the Western Haynesville) | CRK NYSE |
| Crescent Energy United States · Liquids-weighted onshore oil and gas |
Independent producer (public) | Publicly traded Publicly traded. Closed the all-stock Vital Energy acquisition (about $3.1 billion) on 15 December 2025, giving it about 1.4 million net acres in three basins. |
United States | Eagle Ford, South Texas (over 540,000 net acres); Permian Basin (from Vital Energy); Uinta Basin, Utah | CRGY NYSE |
| Devon Energy United States · Shale oil and gas |
Independent producer (public) | Publicly traded Publicly traded; former Devon holders own about 54% and former Coterra holders about 46% of the combined company. Closed its all-stock merger with Coterra on 7 May 2026 (about $58 billion enterprise value, 0.70 Devon share per Coterra share); the combined company is Devon, NYSE: DVN, headquartered in Houston. |
United States | Delaware Basin (Permian); Anadarko Basin, Oklahoma; Eagle Ford; Williston Basin (Bakken); Powder River Basin; Marcellus (from Coterra) | DVN $50.27 -0.91% |
| Diamondback Energy United States · Permian Basin oil |
Independent producer (public) | Publicly traded Publicly traded; it owns about 43% of royalty company Viper Energy (September 2026 filing). Closed Endeavor on 10 September 2024 (about $26 billion) and Double Eagle IV on 1 April 2025 (about $4.1 billion). |
United States | Midland Basin (about 775,000 net acres); Delaware Basin (about 94,000 net acres) | FANG $202.40 -0.76% |
| EOG Resources United States · Premium-return shale oil and gas |
Independent producer (public) | Publicly traded Publicly traded; no controlling shareholder. Closed the Encino acquisition on 1 August 2025 for $5.6 billion including debt; 2025 output was 522 Mb/d of oil and 2,533 MMcf/d of gas. |
United States, Trinidad and Tobago | Delaware Basin (Wolfcamp, Bone Spring); Eagle Ford and Dorado dry gas, South Texas; Utica, Ohio (including Encino, 675,000 core net acres); Trinidad offshore (Coconut platform) | EOG $156.98 -0.65% |
| EQT United States · Vertically integrated natural gas |
Independent producer (public) | Publicly traded Publicly traded; no controlling shareholder. Closed Equitrans Midstream on 22 July 2024 (about $5.5 billion in stock) and the Olympus Energy assets on 1 July 2025 (about 90,000 net acres, 500 MMcf/d). |
United States | Marcellus Shale, Pennsylvania and West Virginia; Utica Shale | EQT $54.22 -0.15% |
| Expand Energy United States · Natural gas |
Independent producer (public) | Publicly traded Publicly traded; no controlling shareholder. Chesapeake and Southwestern combined on 1 October 2024 and renamed Expand Energy; it guides to 7.5 Bcf/d in 2026 and is moving its headquarters from Oklahoma City to the Houston area. |
United States | Haynesville and Bossier shales, Louisiana and Texas (about 23% of proved reserves); Northeast Appalachia, Marcellus (about 42%); Southwest Appalachia, Marcellus and Utica (about 35%) | EXE $93.09 -0.34% |
| Imperial Oil Canada · Integrated oil sands producer with refining |
Independent producer (public) | Publicly traded Publicly traded; ExxonMobil owns approximately 69.6% of the outstanding shares (Imperial's 10-K). ExxonMobil holds its Canadian oil sands position through Imperial, so the two companies' Canadian volumes overlap. |
Canada | Kearl oil sands mine (70.96% interest); Cold Lake in-situ (wholly owned); Syncrude (25% interest) | IMO NYSE American |
| INPEX Japan · Japan's largest oil and gas explorer |
Independent producer (public) | Listed, state-controlled Listed, with Japan's Minister of Economy, Trade and Industry holding about 23.1% of the common shares (30 June 2025) plus the Class A golden share, which carries veto rights over directors, major asset sales and mergers. Operates Ichthys and is building Abadi LNG in Indonesia, with production expected around 2030. |
Australia, Japan, United Arab Emirates | Ichthys LNG, Browse Basin, offshore Australia; Abu Dhabi offshore (Upper Zakum, Lower Zakum, Satah, Umm Al-Dalkh) | 1605 Tokyo Stock Exchange |
| Matador Resources United States · Delaware Basin oil and gas |
Independent producer (public) | Publicly traded Publicly traded. Sold its remaining Eagle Ford assets in April 2025 and bought 5,154 net Delaware Basin acres for about $1.14 billion at a May 2026 BLM lease sale. |
United States | Delaware Basin; Haynesville and Cotton Valley, North Louisiana | MTDR NYSE |
| Murphy Oil United States · Offshore and onshore oil and gas |
Independent producer (public) | Publicly traded Publicly traded. Won 14 Gulf of America blocks in the December 2025 lease sale; Vietnam's Lac Da Vang project is guided to first oil in Q4 2026. |
United States, Canada | Eagle Ford, South Texas (Karnes and Catarina); Gulf of America (Chinook, Banjo, Cello); Kaybob Duvernay and Tupper Montney, Canada | MUR NYSE |
| Occidental United States · Oil and gas, with low-carbon ventures |
Independent producer (public) | Publicly traded Publicly traded; Berkshire Hathaway is the largest shareholder, holding more than a quarter of the common stock (mid-2026 filing). Closed CrownRock on 1 August 2024 ($12.4 billion) and sold OxyChem to Berkshire Hathaway for $9.7 billion in cash on 2 January 2026. |
United States, Oman, United Arab Emirates, Algeria | Permian Basin (Delaware and Midland); DJ Basin (Rockies); Gulf of America; Oman (largest independent producer); Al Hosn gas, UAE | OXY $62.46 +0.13% |
| Ovintiv United States · Permian and Montney oil and gas |
Independent producer (public) | Publicly traded Publicly traded; listed in New York and Toronto. Closed NuVista on 3 February 2026 (about US$2.8 billion) and sold its Oklahoma Anadarko assets for $3.0 billion on 9 April 2026, with the buyer reported as Stone Ridge Energy. |
United States, Canada | Permian Basin; Alberta Montney (NuVista assets, about 140,000 net acres) | OVV NYSE |
| Permian Resources United States · Delaware Basin oil and gas |
Independent producer (public) | Publicly traded Publicly traded. 2025 output averaged 392.6 MBoe/d, and the company spent about $1.1 billion on more than 700 small acquisitions that year. |
United States | Delaware Basin, Texas and New Mexico | PR $24.57 -0.06% |
| Range Resources United States · Natural gas and liquids |
Independent producer (public) | Publicly traded Publicly traded. Q2 2026 output was 2.3 Bcfe/d, guided to 2.5 Bcfe/d by year-end. |
United States | Marcellus Shale, Southwest Pennsylvania (about 450,000 net acres); Northeast Pennsylvania Marcellus (about 70,000 net acres) | RRC $43.05 -0.39% |
| Santos Australia · LNG and gas, with new Alaska oil |
Independent producer (public) | Publicly traded Publicly traded on the ASX. Pikka phase 1 reached first oil in May 2026 with a plateau target near 80,000 b/d gross; an ADNOC-led consortium withdrew its US$18.7 billion takeover bid on 17 September 2025. |
Australia, Papua New Guinea, United States | Cooper Basin and east coast LNG (GLNG); Darwin LNG; Papua New Guinea (PNG LNG); Pikka, Alaska North Slope | STO ASX |
| SM Energy United States · Oil-weighted onshore producer |
Independent producer (public) | Publicly traded Publicly traded. Closed its all-stock Civitas merger on 30 January 2026 (1.45 SM shares per Civitas share), then sold southern Maverick Basin assets for $950 million on 30 April 2026. |
United States | Midland and Delaware basins (Permian); DJ Basin, Colorado; South Texas (Maverick Basin); Uinta Basin, Utah | SM NYSE |
| Suncor Energy Canada · Integrated oil sands producer with refining and retail |
Independent producer (public) | Publicly traded Publicly traded; listed in Toronto and New York. Guides 2026 oil sands output to 785,000 to 810,000 b/d and announced a plan on 4 October 2026 to divest non-core offshore assets. |
Canada | Base Plant and Fort Hills mines; Firebag and MacKay River in-situ; Syncrude (58.74% working interest); East Coast offshore | SU NYSE |
| Talos Energy United States · Offshore Gulf of America |
Independent producer (public) | Publicly traded Publicly traded. Closed the purchase of Shell and Ridgewood's interests in the Coulomb field and Na Kika hub for $420 million on 22 September 2026; Q2 2026 output was 93.7 Mboe/d. |
United States | Gulf of America shelf and deepwater | TALO NYSE |
| Woodside Energy Australia · LNG and offshore oil |
Independent producer (public) | Publicly traded Publicly traded; ASX and NYSE. CEO Meg O'Neill left for BP in December 2025 (Liz Westcott acting CEO); it took a final investment decision on Louisiana LNG (US$17.5 billion) in April 2025, targeting first LNG in 2029. |
Australia, United States, Senegal | North West Shelf and Pluto, Western Australia; Scarborough (first LNG targeted Q4 2026); Shenzi, Atlantis and Mad Dog, Gulf of America; Sangomar, Senegal | WDS NYSE (ADS); also ASX |
| Black Stone Minerals United States · Mineral and royalty interests in 41 states |
Mineral & royalty company | Publicly traded Publicly traded limited partnership. Q1 2026 mineral and royalty output was 35.9 MBoe/d (77% gas); a 220,000 gross-acre development agreement with Caturus Energy was signed in November 2025. |
United States | Haynesville and Bossier, including the Shelby Trough; Permian Basin | BSM $14.86 -1.13% |
| Kimbell Royalty Partners United States · Mineral and royalty interests |
Mineral & royalty company | Publicly traded Publicly traded limited partnership. Direct mineral ownership covers over 17 million gross acres and more than 137,000 wells; it agreed a $147 million Permian purchase from Mesa Royalties in May 2026. |
United States | Permian Basin; Mid-Continent; Eagle Ford; Appalachia | KRP $16.32 +0.25% |
| Viper Energy United States · Permian mineral and royalty interests |
Mineral & royalty company | Publicly traded Publicly traded; a subsidiary of Diamondback Energy, which beneficially owned about 42.9% of Viper after a September 2026 purchase. Closed the Sitio Royalties merger on 19 August 2025 (about $4.1 billion) and the Riverbend mineral assets in July 2026. |
United States | Permian Basin (Midland and Delaware) | VNOM $45.14 +0.27% |
| Adamas Energy (formerly Aethon) United States · Haynesville natural gas |
Private producer | Subsidiary A wholly owned subsidiary of Mitsubishi Corporation, which closed its purchase of Aethon's Haynesville business in July 2026. Mitsubishi's largest-ever acquisition: about US$5.2 billion of equity, reported at roughly $7.5 billion including debt; Gordon Huddleston is CEO. |
United States | Haynesville Shale, Texas and Louisiana (about 2.1 Bcf/d) | — |
| Ascent Resources United States · Utica natural gas |
Private producer | Privately held Privately held; private-equity sponsors including Energy & Minerals Group (EMG, reported over 30%) and First Reserve are the principal holders, and continuation-vehicle transfers have been disputed by minority investors (reported 2025 to 2026). Describes itself as Ohio's largest natural gas producer and the eighth largest in the US; Mason Capital proposed to buy all shares in late 2025, and no outcome was found. |
United States | Utica Shale, southeastern Ohio | — |
| Continental Resources United States · Largest privately held US oil producer |
Private producer | Privately held Privately held and controlled by founder Harold Hamm and family after the 2022 take-private; it has no publicly traded common shares (June 2026 Form 10-Q). Largest leaseholder in the Bakken; it still files reports because of its public debt. |
United States | Bakken (Williston Basin), North Dakota and Montana; Anadarko Basin, Oklahoma; Powder River Basin, Wyoming; Permian Basin | — |
| Hilcorp Energy United States · Mature-field operator across nine states |
Private producer | Privately held Privately held; founded in 1989 by Jeffery Hildebrand and based in Houston. Bought BP's Alaska assets for $5.6 billion in 2020 and entered the Permian Basin at the end of 2024. |
United States | Alaska (Cook Inlet and North Slope, including former BP Prudhoe Bay assets); San Juan Basin, New Mexico and Colorado; Utica, Pennsylvania and Ohio; Louisiana and Texas; Wyoming gas | — |
No company matches those filters.
Hand-curated from company filings, annual reports and news; ownership percentages are approximate and change with deals, so check the latest filing before relying on them (directory updated Oct 5, 2026). "Operates in" lists countries with material producing operations, and basins are the main producing positions, not every asset. Tickers show delayed quotes for informational purposes only. Production ranking: biggest oil companies.
Who Operates Where in the US
| Basin | Companies in this directory |
|---|---|
| Permian Basin | Ecopetrol, BP, Chevron, ConocoPhillips, ExxonMobil, APA Corporation, Crescent Energy, Devon Energy, Diamondback Energy, EOG Resources, Matador Resources, Occidental, Ovintiv, Permian Resources, SM Energy, Black Stone Minerals, Kimbell Royalty Partners, Viper Energy, Continental Resources |
| Bakken / Williston | Chevron, ConocoPhillips, ExxonMobil, Chord Energy, Devon Energy, Continental Resources |
| Eagle Ford | BP, ConocoPhillips, TotalEnergies, Crescent Energy, Devon Energy, EOG Resources, Murphy Oil, SM Energy, Kimbell Royalty Partners |
| DJ / Niobrara | Chevron, Occidental, SM Energy |
| Anadarko Basin | Devon Energy, Continental Resources |
| Marcellus | Equinor, Antero Resources, CNX Resources, Devon Energy, EQT, Expand Energy, Range Resources |
| Utica | CNX Resources, EOG Resources, EQT, Expand Energy, Ascent Resources, Hilcorp Energy |
| Haynesville | BP, Comstock Resources, Expand Energy, Matador Resources, Black Stone Minerals, Adamas Energy (formerly Aethon) |
| Powder River | Devon Energy, Continental Resources |
| Gulf of Mexico | BP, Chevron, Shell, Murphy Oil, Occidental, Talos Energy, Woodside Energy |
| Alaska North Slope | ConocoPhillips, Santos, Hilcorp Energy |
Listing a company means it has a material producing position in the basin, not that it is the largest operator. See each basin page for output, rigs and the operator table: US oil and gas basins.
Who Bought Whom: Completed Deals
| Closed | Acquired company | Buyer | Deal value | Notes |
|---|---|---|---|---|
| 2026-09 | Shell and Ridgewood interests in Coulomb and Na Kika | Talos Energy | $0.4 bn | Gulf of America deepwater; final net cash price at closing on 22 September 2026 |
| 2026-09 | ARC Resources | Shell | $16.5 bn | Enterprise value including net debt and leases; equity value about US$13.9 billion; adds about 370,000 boe/d in the Montney |
| 2026-07 | Camino Natural Resources' Anadarko Basin assets | Diversified Energy (with Carlyle) | $1.2 bn | About 101,000 acres across SCOOP, STACK and MERGE |
| 2026-07 | Aethon Energy's Haynesville business | Mitsubishi Corporation | $5.2 bn | Equity investment; reported at about $7.5 billion including debt; about 2.1 Bcf/d; now operated as Adamas Energy |
| 2026-05 | Coterra Energy | Devon Energy | $58 bn | All-stock at 0.70 Devon shares per Coterra share; enterprise value; combined company is Devon, NYSE: DVN, Houston |
| 2026-04 | Ovintiv's Anadarko Basin assets | Stone Ridge Energy (buyer reported by Hart Energy) | $3 bn | About 360,000 net acres and 90,000 boe/d; Ovintiv did not name the buyer |
| 2026-02 | NuVista Energy | Ovintiv | $2.8 bn | Cash and stock (about C$3.8 billion); Alberta Montney |
| 2026-02 | HG Energy upstream assets | Antero Resources | $2.8 bn | Marcellus; about 385,000 net acres and 850 MMcfe/d of expected 2026 output |
| 2026-02 | LLOG Exploration | Harbour Energy | $3.2 bn | Gulf of America deepwater; roughly $2.7 billion cash plus about $0.5 billion of Harbour shares |
| 2026-01 | Civitas Resources | SM Energy | — | All-stock at 1.45 SM shares per Civitas share; combined company valued at about $12.8 billion; Civitas delisted |
| 2025-12 | Vital Energy | Crescent Energy | $3.1 bn | All-stock; Permian Basin |
| 2025-11 | MEG Energy | Cenovus Energy | — | Adds about 110,000 b/d of oil sands output next to Christina Lake |
| 2025-08 | Sitio Royalties | Viper Energy (Diamondback) | $4.1 bn | Merger of the two largest US mineral and royalty companies; Permian |
| 2025-08 | Encino Acquisition Partners | EOG Resources | $5.6 bn | Cash plus assumed notes; Utica, Ohio |
| 2025-07 | Hess | Chevron | $53 bn | All-stock announced value (closed 18 July 2025 after the Guyana arbitration); Bakken, Guyana, Gulf of Mexico |
| 2025-07 | Olympus Energy assets | EQT | $1.8 bn | Headline value; about $1.47 billion of stock plus about $475 million of cash; about 90,000 net acres in southwest Pennsylvania |
| 2025-04 | Double Eagle IV | Diamondback Energy | $4.1 bn | Cash and stock; about 40,000 net Midland Basin acres |
| 2024-11 | Marathon Oil | ConocoPhillips | $22.5 bn | All-stock; announced value including $5.4 billion of debt (equity about $16.5 billion at close); Eagle Ford, Bakken, Permian |
| 2024-10 | Southwestern Energy | Chesapeake Energy (renamed Expand Energy) | $7.4 bn | All-stock; announced value, with about $7.9 billion of stock issued at close; Haynesville and Appalachia |
| 2024-09 | Grayson Mill Energy | Devon Energy | $5 bn | Williston Basin; value before purchase price adjustments |
| 2024-09 | Endeavor Energy Resources | Diamondback Energy | $26 bn | Enterprise value; cash and stock; Midland Basin |
| 2024-08 | CrownRock | Occidental | $12.4 bn | Cash, stock and assumed debt; Midland Basin |
| 2024-07 | Equitrans Midstream | EQT | $5.5 bn | All-stock midstream merger that made EQT vertically integrated in Appalachia |
| 2024-05 | Enerplus | Chord Energy | $4 bn | Cash and stock; Williston Basin |
| 2024-05 | Pioneer Natural Resources | ExxonMobil | $59.5 bn | All-stock; Permian Basin (Midland Basin) |
| 2024-04 | Callon Petroleum | APA Corporation | $4.5 bn | All-stock, including debt; Delaware and Midland basins |
| 2021-12 | Shell's Permian business | ConocoPhillips | $9.5 bn | All-cash Delaware Basin assets of about 225,000 net acres |
| 2021-01 | Concho Resources | ConocoPhillips | $9.7 bn | All-stock; announced equity value, with ConocoPhillips' 10-K valuing consideration at close at $13.1 billion; Delaware and Midland basins |
| 2020-10 | Noble Energy | Chevron | $5 bn | All-stock; announced equity value about $5 billion, while Chevron's filings record a $4.1 billion purchase price; DJ Basin, Eastern Mediterranean |
| 2019-08 | Anadarko Petroleum | Occidental | $55 bn | Announced value including debt; Permian, DJ Basin, Gulf of Mexico and international assets |
Deal values are shown only where a source states them. Consolidation context: Permian Basin and energy stocks.
Oil Company Directory FAQ
Which major oil companies are state-owned?
26 of the 64 companies in this directory are state-owned or state-controlled, including ADNOC, Basra Oil Company (Iraq), CNOOC Limited, CNPC / PetroChina, Ecopetrol, Eni. Some, like Saudi Aramco and Petrobras, are listed on stock exchanges but remain under government control.
Who owns Saudi Aramco?
The Saudi government holds about 81.5% directly and the Public Investment Fund (with Sanabil and other PIF-owned entities) about 16.0%; the public float is about 2.5% (Aramco 2025 annual report, as of 31 December 2025). (2026-10; see the sources listed in the directory data.)
Who owns ExxonMobil?
Publicly traded; no controlling shareholder. (2026-10; see the sources listed in the directory data.)
Who owns Chevron?
Publicly traded; no controlling shareholder. (2026-10; see the sources listed in the directory data.)
Which companies operate in the Permian Basin?
The directory lists 19 companies with material producing positions in the Permian Basin, including Ecopetrol, BP, Chevron, ConocoPhillips, ExxonMobil, APA Corporation, Crescent Energy, Devon Energy. See the Permian Basin page for production, rigs and operators.
How current is the ownership information?
It is hand-curated from company filings, annual reports and news, with a source and date on each entry (directory updated Oct 5, 2026). Ownership changes with mergers and share sales, so treat percentages as approximate and check the latest filing before relying on them.
Which oil companies have merged recently?
Recent completed deals include Talos Energy acquired Shell and Ridgewood interests in Coulomb and Na Kika (2026); Shell acquired ARC Resources (2026); Diversified Energy (with Carlyle) acquired Camino Natural Resources' Anadarko Basin assets (2026); Mitsubishi Corporation acquired Aethon Energy's Haynesville business (2026); Devon Energy acquired Coterra Energy (2026). The "who bought whom" table lists them with closing dates.