Houston, Texas, has earned its status as the energy capital of the world through decades of investment, infrastructure development, and an unrivalled concentration of upstream, midstream, and downstream expertise. The city is home to more energy company headquarters than anywhere else on the planet, and its influence on global oil and gas markets is felt from the Permian Basin to the Gulf of Mexico, and from West Africa to the North Sea.
In this blog, we profile the top oil and gas companies headquartered or operating in Houston, examine what makes the city such a dominant force in global energy, and look at the career opportunities this creates for professionals across the sector.
Why Houston Is the Hub of Global Oil and Gas
Houston’s dominance in energy is not accidental. The city has built its position over more than a century through a combination of geographic proximity to major producing basins, world-class port and pipeline infrastructure, a deep and highly skilled workforce, and a business environment that has consistently attracted capital-intensive industry.
The greater Houston area is home to over 4,600 energy-related firms, including operators, oilfield services companies, engineering and construction contractors, and specialist technology businesses. The city sits at the intersection of the US energy supply chain: crude oil flows in from the Permian Basin, the Eagle Ford, and offshore Gulf of Mexico; refined products flow out through the Ship Channel and the Colonial Pipeline system to markets across the eastern United States.
Houston also functions as the command centre for global energy operations. Many of the world’s largest operators maintain their international project management, commercial, and trading functions from Houston, making it as much a hub for deal-making and talent deployment as for physical production.
Which are the Top Oil and Gas Companies in Houston, Texas?
Here are the most prominent companies headquartered or with major operations in Houston, each playing a significant role in both the local economy and the global energy system:
1. ExxonMobil
ExxonMobil is one of the largest publicly traded oil and gas companies in the world by market capitalisation, with operations spanning upstream exploration and production, refining, chemicals, and an expanding low-carbon energy portfolio. The company completed its headquarters relocation from Irving to its 385-acre campus in Spring, Texas, in 2023, consolidating over 10,000 employees at a purpose-built facility that also serves as its North American research and technology hub. ExxonMobil’s US production base spans the Permian Basin, Alaska, the Gulf of Mexico, and the Bakken, with the Permian accounting for a growing share of its upstream output.
For more on ExxonMobil’s Houston operations, see their Houston campus page.
2. Chevron
Chevron maintains a significant operational presence in Houston as one of its primary US bases, supporting its substantial Gulf of Mexico deepwater portfolio and its growing Permian Basin operations. Chevron is one of the most active deepwater operators in the Gulf of Mexico, with major producing assets including the Anchor and Jack/St. Malo fields, and holds a large acreage position in the Permian. The company is also investing in lower-carbon energy, including carbon capture, hydrogen, and renewable fuels, integrating these capabilities alongside its conventional upstream business.
3. ConocoPhillips
Headquartered in Houston, ConocoPhillips is the world’s largest independent exploration and production company by production and proved reserves. Its US portfolio is anchored by the Permian Basin, where it holds around 792,000 net acres in the Delaware Basin alone, making it one of the largest Tier 1 acreage holders in the region. The company has targeted approximately 7% annual production growth from its Permian assets through 2032, supported by a programme of extended lateral drilling and operational efficiency improvements. ConocoPhillips also operates in Alaska, the Eagle Ford, the Bakken, and internationally across Canada, Norway, and Qatar.
Read more about their Permian strategy at the Oil and Gas Journal.
4. Phillips 66
Phillips 66 is one of the largest downstream and midstream energy companies in the United States, headquartered in Houston. The company’s integrated portfolio spans refining, NGL transportation and fractionation, chemicals (through its CPChem joint venture with Chevron), and an expanding renewable fuels business. Its midstream network includes over 72,000 miles of pipeline across the US, and the company has been actively building out its NGL wellhead-to-market strategy through acquisitions, including the EPIC NGL business in 2025. Phillips 66 also operates the Rodeo Renewable Energy Complex in California, one of the world’s largest renewable fuels facilities.
For the latest operational updates, see Phillips 66’s investor news.
5. Halliburton
Founded in 1919 and headquartered in Houston, Halliburton is one of the world’s largest oilfield services companies, with approximately 48,000 employees across more than 70 countries and revenue of around $22.9 billion in 2024. The company provides a comprehensive range of drilling, completion, production, and reservoir evaluation services to operators globally. Halliburton’s two primary divisions, Completion and Production and Drilling and Evaluation, support every stage of the well lifecycle from exploration through to long-term production optimisation. The company is also investing in digital oilfield technologies and well construction automation, positioning itself at the intersection of traditional services and the data-driven future of upstream operations.
Oil and Gas Across the USA: Beyond Houston
While Houston is the commercial and operational headquarters of US energy, activity is spread across a diverse portfolio of producing regions, each with distinct geological characteristics, operational requirements, and workforce needs:
- The Permian Basin, West Texas and New Mexico:
The most productive oil basin in the United States and one of the most prolific in the world, with operators including ExxonMobil, ConocoPhillips, Chevron, Pioneer (now part of ExxonMobil), and dozens of independent producers. The Permian accounts for over 6 million barrels per day of US crude production. See: eia.gov
- The Gulf of Mexico:
A major deepwater frontier with producing fields at water depths exceeding 3,000 metres. Chevron, Shell, BP, and ExxonMobil are among the most active deepwater operators, with ongoing exploration and production generating significant demand for subsea engineers, ROV professionals, and offshore technicians. See: bsee.gov
- The Bakken Formation, North Dakota:
One of the US’s leading shale oil-producing regions, with active operators including ConocoPhillips, Continental Resources, and Chord Energy. The Bakken has contributed significantly to US oil production growth over the past two decades. See: dmr.nd.gov
- Alaska:
Home to Prudhoe Bay, one of the largest oil fields ever discovered in North America, as well as the Willow project – ConocoPhillips’s major new North Slope development approved in 2023, targeting 180,000 barrels per day at peak production. See: aogcc.alaska.gov
- Louisiana and the Gulf Coast:
A hub for offshore operations, petrochemical manufacturing, and LNG export, with major facilities operated by ExxonMobil, Shell, Cheniere Energy, and Sempra along the Gulf Coast corridor. See: dnr.louisiana.gov
What are the Career Opportunities in Houston and Texas Oil and Gas?
The combination of major operator headquarters, active producing basins, and a thriving oilfield services ecosystem makes Houston and the wider Texas region one of the most active job markets for energy professionals anywhere in the world. Opportunities exist across every discipline and career stage.
Roles consistently in demand across Houston and Texas energy companies:
- Petroleum and reservoir engineers for Permian and Gulf of Mexico operators
- Drilling engineers and wellsite supervisors for onshore and offshore campaigns
- Project managers and project engineers for capital expansion and brownfield modification projects
- HSE managers and advisors with major hazard industry experience and OSHA credentials
- Mechanical, electrical, and instrumentation engineers for facilities and processing plants
- Geologists and geophysicists for exploration and appraisal programmes
- Offshore technicians and operators for Gulf of Mexico installations
- Commercial, procurement, and contracts professionals with FIDIC or NEC experience
- Digital and data professionals supporting AI-driven reservoir modelling, predictive maintenance, and operational optimisation
Houston’s position as a global energy hub also means that many roles involve international project coordination, making it a strong base for professionals who want to work across multiple geographies without necessarily relocating.
Why the USA Remains a Global Energy Leader
The United States is currently the world’s largest oil and natural gas producer, a position it has held since the shale revolution of the early 2010s transformed the country from a significant importer to a net exporter. US production of crude oil now exceeds 13 million barrels per day, and the country is the world’s leading exporter of LNG following the commissioning of multiple Gulf Coast liquefaction facilities.
This production leadership is underpinned by a combination of geological endowment, technological innovation, and a competitive operating environment that encourages investment and efficiency. Houston’s energy companies have been at the centre of these developments: the horizontal drilling and hydraulic fracturing techniques that unlocked the shale revolution were commercialised by Texas-based operators and service companies, and the next wave of innovation in digital oilfield technology, carbon capture, and lower-carbon fuels is being driven from the same ecosystem.
Looking for Opportunities in Oil and Gas?
WRS connects skilled professionals with leading energy companies across Houston, Texas, and globally. Whether you are an experienced engineer targeting your next senior role or a specialist looking to break into the US market, our team has the sector knowledge and the network to support you.
We also work with operators, contractors, and service companies across Houston and the broader US energy sector to source technical and commercial talent quickly and compliantly. If you are scaling a team or filling a critical role, get in touch.
Explore Oil and Gas Job Roles | USA Construction Jobs | Contact WRS | Submit Your CV
Final takeaway
Houston remains the strategic nerve center of global oil and gas, combining upstream production, midstream logistics, downstream refining, and cutting-edge energy innovation in one ecosystem. For professionals, it offers one of the most diverse and opportunity-rich energy job markets in the world.
Key Takeaways: Houston Oil & Gas Hub
- Houston is the global energy capital, hosting more oil and gas company headquarters than any other city in the world.
- The city’s strength comes from its integration of upstream, midstream, downstream, and energy trading operations, making it both a production and decision-making hub.
- Major energy players such as ExxonMobil, Chevron, ConocoPhillips, Phillips 66, and Halliburton anchor Houston’s energy ecosystem.
- The US energy system is powered by key producing regions linked to Houston, especially the Permian Basin, Gulf of Mexico, Bakken Formation, Alaska, and Gulf Coast LNG corridor.
- Houston supports a highly diverse job market covering engineering, offshore operations, digital energy, project management, and HSE roles.
- The city enables professionals to work on global projects without relocating internationally, thanks to its role as a command center for multinational energy operations.
- The United States remains a global energy leader due to the shale revolution, technological innovation, and strong export infrastructure, with Houston at the core of this transformation.
- Overall, Houston functions as both an industrial engine and strategic control room for global oil and gas markets.
Frequently asked questions
What is the biggest oil company in Houston, Texas?
The biggest oil company in the Houston, Texas region is ExxonMobil. It is one of the largest integrated oil and gas companies in the world, with major operations across upstream production, refining, chemicals, and low-carbon energy.
While other major players like Chevron and ConocoPhillips also have a strong Houston presence, ExxonMobil stands out in scale, global reach, and overall production capacity.
How many oil companies are in Houston, Texas?
Houston is home to more than 4,600 energy-related companies, including oil and gas operators, oilfield service firms, engineering contractors, and energy technology businesses.
This makes it the largest energy ecosystem in the world, with companies ranging from global majors to small independent service providers.
What are the major oil companies in Texas?
Texas is home to several of the world’s largest oil and gas companies, including ExxonMobil, Chevron, ConocoPhillips, Phillips 66, and Halliburton.
These companies operate across upstream exploration and production, refining, petrochemicals, pipeline infrastructure, and oilfield services, making Texas a global hub for the energy industry.
What is the best energy company in Houston, Texas?
There is no single “best” energy company in Houston, as it depends on the criteria (size, salary, career growth, or specialization). However, top oil and gas companies in Houston include ExxonMobil, Chevron, ConocoPhillips, and Halliburton, each offering strong career opportunities across different areas of the energy sector.
About the Author
Apurva Agrawal is an SEO Specialist at Worldwide Recruitment Solutions (WRS), with three years of experience driving digital growth and visibility within the global recruitment sector.
This guide was developed in collaboration with and verified by Melissa Walsh, Marketing and Brand Manager at WRS, ensuring that all workforce data and service methodologies reflect WRS’s global standards and positioning.
