Oil & Gas Companies in Texas

Integrated supermajor headquartered in the Houston area; one of the largest publicly traded oil and gas companies in the world, with major Permian Basin operations.

Houston-based independent exploration and production company, one of the largest pure-play E&P operators globally, with extensive Permian and Eagle Ford acreage.

Houston-headquartered international oil and gas operator with a leading Permian Basin position and a carbon-management business.

Houston-based diversified energy manufacturing and logistics company spanning refining, midstream, chemicals and marketing.

Houston-based independent E&P operator with positions in the Eagle Ford, Permian and Bakken (now part of ConocoPhillips).

Houston-headquartered independent producer, a pioneer of the Eagle Ford shale and a major Permian operator.

Midland-based independent operator focused exclusively on the Permian Basin; one of the largest pure-play Permian producers.

Acquired by ExxonMobil in 2024.

Irving-based independent and a foundational Permian Basin operator (acquired by ExxonMobil in 2024).

Merged into Devon Energy in 2026.

Houston-based independent producer formed from the Cimarex and Cabot merger, with Permian, Anadarko and Marcellus assets.

Midland-based independent operator focused on the Delaware sub-basin of the Permian.

Houston-based independent E&P operator with Permian, North Sea and Egypt operations.

Denver and Texas-operating independent producer with Permian, Anadarko and Montney positions.

Dallas-based independent producer focused on the Delaware Basin of the Permian, with a midstream arm.

Independent E&P operator with Midland Basin and South Texas Eagle Ford assets.

Acquired by Crescent Energy in 2025.

Tulsa and Texas-operating independent producer (formerly Laredo Petroleum) focused on the Permian Basin.

Houston-based independent operator with Permian and Eagle Ford assets (acquired by APA).

Frisco-based natural gas producer and a leading operator in the Haynesville shale of East Texas and Louisiana.

Midland-based private independent operator active across the Permian Basin.

Acquired by Diamondback Energy in 2024.

Midland-based private operator, one of the largest privately held Permian producers (merged with Diamondback).

Midland-based private independent oil and gas operator with a long Permian Basin history.

Midland-based private Permian operator (acquired by Occidental).

Houston-based energy infrastructure company operating one of the largest natural gas pipeline and terminals networks in North America.

Dallas-based midstream company operating a vast network of natural gas, NGL, crude and refined-products pipelines.

Houston-based midstream master limited partnership providing NGL, crude, natural gas and petrochemical services along the Gulf Coast.

Houston-based midstream company focused on crude oil and NGL transportation and storage, with major Permian gathering.

Houston-based midstream provider of natural gas gathering, processing and NGL services, heavily weighted to the Permian.

Natural gas infrastructure company with major Texas pipeline and processing assets (HQ Tulsa, large Texas footprint).

Midstream company with extensive NGL and natural gas systems serving the Permian and Mid-Continent.

Midstream natural gas gathering and processing operator (now part of Phillips 66).

Houston-area midstream partnership providing gathering, processing and transportation, largely for Occidental and Permian producers.

San Antonio-based crude and refined-products pipeline and storage operator (acquired by Sunoco).

Dallas-based fuel distribution and midstream logistics partnership.

San Antonio-based independent petroleum refiner and marketer, one of the largest refiners in the world.

Koch-owned refining and chemicals company operating major refineries on the Texas Gulf Coast (Corpus Christi).

Houston-based refiner and marketer operating Gulf Coast and Midwest refineries.

Houston-based plastics, chemicals and refining company with major Gulf Coast operations.

Materials-science and petrochemicals company with its largest manufacturing complex in Freeport, Texas.

Land and offshore drilling contractor with a large fleet of Texas-based super-spec rigs (HQ Tulsa, major Texas operations).

Houston-based drilling contractor and oilfield-services provider with a major land-rig fleet across Texas basins.

Houston-based land and offshore drilling contractor and drilling-technology provider operating globally and across Texas.

Land drilling contractor with a significant Texas rig fleet and Houston operations.

Midland-based oilfield-services and pressure-pumping company focused on the Permian Basin.

Houston-based oilfield-services giant providing drilling, completion, pressure pumping and production services worldwide.

Houston-based energy technology and oilfield-services company spanning drilling, completions, turbomachinery and industrial solutions.

Global oilfield-services and technology leader with major Houston operations across reservoir, drilling, production and digital.

Houston-based diversified oilfield-services company providing drilling, evaluation, completion and production technologies.

Houston-based provider of drilling rigs, equipment and technology to the upstream oil and gas industry (formerly National Oilwell Varco).

Houston-area oilfield-services company specializing in production chemistry, artificial lift and asset integrity (merging with SLB).