Twenty-six Houston-area companies landed on the latest Fortune 500 list. Photo via Getty Images

Houston maintained its No. 3 status this year among U.S. metro areas with the most Fortune 500 headquarters. Fortune magazine tallied 26 Fortune 500 headquarters in the Houston area, behind only the New York City area (62) and the Chicago area (30).

Last year, 23 Houston-area companies landed on the Fortune 500 list. Fortune bases the list on revenue that a public or private company earns during its 2024 budget year.

On the Fortune 500 list for 2025, Spring-based ExxonMobil remained the highest-ranked company based in the Houston area as well as in Texas, sitting at No. 8 nationally. That’s down one spot from its No. 7 perch on the 2024 list. During its 2024 budget year, ExxonMobil reported revenue of $349.6 billion, up from $344.6 billion the previous year.

Here are the rankings and 2024 revenue for the 25 other Houston-area companies that made this year’s Fortune 500:

  • No. 16 Chevron, $202.8 billion
  • No. 28 Phillips 66, $145.5 billion
  • No. 56 Sysco, $78.8 billion
  • No. 75 Conoco Phillips, $56.9 million
  • No. 78 Enterprise Products Partners, $56.2 billion
  • No. 92 Plains GP Holdings, $50 billion
  • No. 143 Hewlett-Packard Enterprise, $30.1 billion
  • No. 153 NRG Energy, $28.1 billion
  • No. 155 Baker Hughes, $27.8 billion
  • No. 159 Occidental Petroleum, $26.9 billion
  • No. 183 EOG Resources, $23.7 billion
  • No. 184 Quanta Services, $23.7 billion
  • No. 194 Halliburton, $23 billion
  • No. 197 Waste Management, $22.1 billion
  • No. 214 Group 1 Automotive, $19.9 billion
  • No. 224 Corebridge Financial, $18.8 billion
  • No. 256 Targa Resources, $16.4 billion
  • No. 275 Cheniere Energy, $15.7 billion
  • No. 289 Kinder Morgan, $15.1 billion
  • No. 345 Westlake Corp., $12.1 billion
  • No. 422 APA, $9.7 billion
  • No. 443 NOV, $8.9 billion
  • No. 450 CenterPoint Energy, $8.6 billion
  • No. 474 Par Pacific Holdings, $8 billion
  • No. 480 KBR Inc., $7.7 billion

Nationally, the top five Fortune 500 companies are:

  • Walmart
  • Amazon
  • UnitedHealth Group
  • Apple
  • CVS Health

“The Fortune 500 is a literal roadmap to the rise and fall of markets, a reliable playbook of the world's most important regions, services, and products, and an indispensable roster of those companies' dynamic leaders,” Anastasia Nyrkovskaya, CEO of Fortune Media, said in a news release.

Among the states, Texas ranks second for the number of Fortune 500 headquarters (54), preceded by California (58) and followed by New York (53).

These Houston energy companies have made it on the list of top employers. Photo via Getty Images

Houston-based energy companies hailed best places to work by U.S. News

Top cos.

More than a dozen Houston-based companies are sharing the spotlight in U.S. News and World Report's collection of the "Best Companies to Work For" in 2024-2025, including several of the Bayou City’s energy companies.

The annual report examines publicly-traded companies around the world to determine the best employers based on six metrics including work-life balance and flexibility; quality of pay and benefits; job and company stability; career opportunities and professional development; and more. The companies were not ranked, but included based on reader surveys and publicly available data about each workplace.

New for the 2024-2025 report, U.S. News analyzed 549 companies across 29 different lists, including the overall best companies list — which includes the best 300 companies across the U.S., the United Kingdom, Ireland, Switzerland, Luxembourg, and Bermuda — 24 industry-specific lists, and four regional lists.

There were 16 total companies based around Houston that made the lists, with the majority being based in the city, while one each were located in Spring and The Woodlands.

Independent energy company Marathon Oil was the top-rated Houston energy employer, with nearly 1,700 employees, an annual revenue stream of $6.38 billion, and a $15.4 billion market cap. The company was specifically highlighted with a "Top Quality of Pay" label, but also boasts high ratings for its employees' work-life balance, job stability, and belongingness.

In addition to being included in the overall "Best Companies" list, Marathon Oil earned recognition in the industry-specific "Best in Energy" list and the "Best Companies in the South" list.

A second Houston-based energy company earning a spot among the top employers is Occidental (also known as Oxy). The petroleum corporation, which has been in operation since 1920, has nearly 12,600 employees and brings in $27,43 billion in revenue every year.

According to U.S. News, Occidental offers many financial, health and wellness, and workplace benefits including 401k matching, tuition assistance, an employee assistance program, flexible work arrangements, and much more. The company was also given a "Top Quality of Pay" designation.

Occidental appeared in U.S. News' "Best in Mining and Raw Materials," the overall "Best Companies," and "Best Companies in the South" lists.

The other top energy employers include:

  • Southwestern Energy Company, Spring – Best in Energy; Best Companies (overall); Best Companies in the South
  • ConocoPhillips – Best in Energy, Best Companies in the South
  • Cheniere – Best in Energy
  • EOG Resources – Best in Energy
  • Murphy Oil Corporation – Best in Energy

"Prospective and current employees understand the significant impact their employer has on their quality of life," said Carly Chase, vice president of careers at U.S. News and World Report, in a release. "Whether a new grad seeking a company to launch their career, an established professional looking for a change or an HR professional researching the strengths of their company and others, Best Companies to Work For provides a central space to see which companies are meeting their employees' needs best.
The full list of the best companies to work for can be found at usnews.com

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This article originally ran on CultureMap.

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Houston energy tech company breaks ground on low-cost green hydrogen pilot plant

coming soon

Houston’s Lummus Technology and Advanced Ionics have broken ground on their hydrogen pilot plant at Lummus’ R&D facility in Pasadena.

The plant will support Advanced Ionics’ cutting-edge electrolyzer technology, which aims to deliver high-efficiency hydrogen production with reduced energy requirements.

“By demonstrating Advanced Ionics’ technology at our state-of-the-art R&D facility, we are leveraging the expertise of our scientists and R&D team, plus our proven track record of developing breakthrough technologies,” Leon de Bruyn, president and CEO of Lummus, said in a news release. “This will help us accelerate commercialization of the technology and deliver scalable, cost-effective and sustainable green hydrogen solutions to our customers.”

Advanced Ionics is a Milwaukee-based low-cost green hydrogen technology provider. Its electrolyzer converts process and waste heat into green hydrogen for less than a dollar per kilogram, according to the company. The platform's users include industrial hydrogen producers looking to optimize sustainability at an affordable cost.

Lummus, a global energy technology company, will operate the Advanced Ionics electrolyzer and manage the balance of plant systems.

In 2024, Lummus and Advanced Ionics established their partnership to help advance the production of cost-effective and sustainable hydrogen technology. Lummus Venture Capital also invested an undisclosed amount into Advanced Ionics at the time.

“Our collaboration with Lummus demonstrates the power of partnerships in driving the energy transition forward,” Ignacio Bincaz, CEO of Advanced Ionics, added in the news release. “Lummus serves as a launchpad for technologies like ours, enabling us to validate performance and integration under real-world conditions. This milestone proves that green hydrogen can be practical and economically viable, and it marks another key step toward commercial deployment.”

Houston Energy Transition Initiative releases 2025 year in review

The View From HETI

The Houston Energy Transition Initiative (HETI) concludes another impactful year by reaffirming our commitment to positioning Houston as the global leader in the energy transition – delivering more energy with fewer emissions. HETI continues to be focused on advancing key regional priorities, driving economic development and talent recruitment.

It was a year of changes across the energy landscape, yet HETI continued to collaborate, convene, and deliver measurable progress. Below are some of the year’s key highlights:

Sharing Members’ Impact on Decarbonization and Emissions Reductions

HETI released a report detailing members’ low-carbon initiatives and commitments, showcasing industry momentum and long-term pathways to achieving the dual challenge of meeting growing global energy demand while reducing emissions. Major findings include more than $95 billion in low-carbon investments and 20% reduction in Scope 1 emissions since 2017 by HETI-affiliated companies. The report also recommends strategic pathways for continued emissions reductions.

Advancing CCUS at Commercial Scale

HETI publicly supported efforts to accelerate carbon capture, utilization, and storage (CCUS) efforts to commercial scale. Early in the year, HETI and the Houston CCS Alliance commissioned Texas A&M University’s Energy Institute and Mary Kay O’Connor Process Safety Center to research the operational history and safety record of CCUS in the United States. In November, the U.S. Environmental Protection Agency granted Texas authority to permit CCUS—a significant win that increases the region’s competitiveness in the global energy ecosystem.

Leadership in Resilient Power for Houston’s Growth

In June, HETI hosted its first Resilient Power: Fueling Houston’s Growing Economy summit, bringing together more than 100 business and civic leaders to discuss the role of resilient, reliable power in Houston’s economic development. Cross-sector leaders explored the impacts of rising power demand driven by industrial decarbonization and digitalization, and discussed the essential collaboration between the energy and tech sectors to strengthen long-term resilience through an “all of the above” approach. HETI also published a fact sheet on Houston’s resilient power access, affordability, and reliability as a resource for partners.

Showcasing Houston’s Leadership at CERAWeek 2025

HETI participated in CERAWeek 2025, elevating Houston’s energy leadership on the world stage. The HETI House activation in the Innovation Agora attracted more than 1,000 visitors and generated over 80 economic development leads. In addition, HETI partnered with Rice Alliance and TEX-E for the fourth annual Energy Ventures Pitch Competition at CERAWeek, bringing together students, startups and energy leaders to advance innovation and investment.

Scaling Houston’s Innovation Ecosystem

As Houston’s energy innovation ecosystem continues to grow, HETI plays an important role in shaping its future. During its second year, Houston Energy and Climate Startup Week attracted more than 3,900 attendees from local and global startups, industry leaders, and investors—further solidifying Houston’s status as the world’s leading energy innovation hub.

Strengthening Regional Competitiveness

To advance technology commercialization and support the Gulf Coast’s continued energy competitiveness, HETI hosted its second annual Gulf Coast National Labs Workshop. This year’s event convened more than 120 leaders representing six national laboratories, industry partners, academia, and government stakeholders to accelerate collaboration around the region’s greatest energy and chemical challenges.

HETI’s progress this year is significant, but the work ahead is even more critical. As we move into the new year, HETI remains steadfast in its commitment to convening industry leaders, informing policy, supporting innovation, and driving economic growth across the region. This work strengthens Houston’s core energy economy and accelerates the emerging sectors that will ensure Houston continues to lead the world in energy.

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This article originally appeared on the Greater Houston Partnership's Houston Energy Transition Initiative blog. HETI exists to support Houston's future as an energy leader. For more information about the Houston Energy Transition Initiative, EnergyCapitalHTX's presenting sponsor, visit htxenergytransition.org.

Chevron CEO touts biofuels as part of its renewable energy efforts

Betting on biofuels

As Chevron Chairman and CEO Mike Wirth surveys the renewable energy landscape, he sees the most potential in biofuels.

At a recent WSJ CEO Council event, Wirth put a particular emphasis on biofuels—the most established form of renewable energy—among the mix of low-carbon energy sources. According to Biofuels International, Chevron operates nine biorefineries around the world.

Biofuels are made from fats and oils, such as canola oil, soybean oil and used cooking oil.

At Chevron’s renewable diesel plant in Geismar, Louisiana, a recent expansion boosted annual production by 278 percent — from 90 million gallons to 340 million gallons. To drive innovation in the low-carbon-fuels sector, Chevron opened a technology center this summer at its renewable energy campus in Ames, Iowa.

Across the board, Chevron has earmarked $8 billion to advance its low-carbon business by 2028.

In addition to biofuels, Chevron’s low-carbon strategy includes hydrogen, although Wirth said hydrogen “is proving to be very difficult” because “you’re fighting the laws of thermodynamics.”

Nonetheless, Chevron is heavily invested in the hydrogen market:

As for geothermal energy, Wirth said it shows “some real promise.” Chevron’s plans for this segment of the renewable energy industry include a 20-megawatt geothermal pilot project in Northern California, according to the California Community Choice Association. The project is part of an initiative that aims to eventually produce 600 megawatts of geothermal energy.

What about solar and wind power?

“We start with things where we have some reason to believe we can create shareholder value, where we’ve got skills and competency, so we didn’t go into wind or solar because we’re not a turbine manufacturer installing wind and solar,” he said in remarks reported by The Wall Street Journal.

In a September interview with The New York Times, Wirth touched on Chevron’s green energy capabilities.

“We are investing in new technologies, like hydrogen, carbon capture and storage, lithium and renewable fuels,” Wirth said. “They are growing fast but off a very small base. We need to do things that meet demand as it exists and then evolve as demand evolves.”