Criterion Energy Partners is aiming to be a next-gen energy company. Photo via Getty Images

Sean Marshall and Danny Rehg founded Criterion Energy Partners in 2020 with the hope that geothermal energy could be the cleaner, safer wave of the future. Less than three years later, the team is close to making their plan a reality thanks to a geothermal well that they hope to drill this year.

Entrepreneurship wasn’t always part of the plan for either partner. When Marshall enrolled in the MBA program at Rice University’s Jones School of Business in 2016, he had a successful career at Credit Suisse and had his eye set on a future political career. But then he met classmate Rehg, whose background was in petroleum engineering. Their wives were both attorneys in the Houston district attorney’s office and the couples became fast friends. They also realized that, as Marshall now puts it, Rehg knew how to drill wells and he knew how to make deals.

In the ensuing years, both Rehg and Marshall's careers evolved and, eventually, the pair started looking for other opportunities. That’s when they read an article in Rolling Stone about geothermal energy.

“It was really a place where it really felt like this was something we were put here to do,” says Marshall.

Marshall and Rehg spent the ensuing months “like rats in a dumpster” learning about the players and opportunities in the geothermal industry and built from there. They learned about Pleasant Bayou Power Plant, a 1989 geothermal energy project based in Brazoria County that was backed by the U.S. Department of Energy.

Last summer, Criterion Energy Partners, a member of Greentown Houston, closed on a 10,000-acre lease around the site of Pleasant Bayou.

"We hope by the end of this year we will be generating electrons,” says Marshall.

Though the company has a patented technology that connects wells to the grid, called Criterion Geothermal System, Marshall says that some of the best advice he’s gotten was, “Don’t fall in love with your technology; fall in love with the problem.” The 2021 Texas freeze reminded the founders what that was.

“People were looking for cleaner, lower-emission power sources and [there was] a need for energy resiliency,” says Marshall, explaining that the freeze created an ideal situation for the company, as people began to think more outside the grid.

The year 2022 was a big one for Criterion Energy Partners. Oil and gas powerhouse Patterson-UTI invested in the company, followed by funding from the Department of Energy. The money not only allowed Criterion Energy Partners to lease their land, they are also now paying 12 salaries, including those of the founders. The team offices in The Cannon’s Esperson coworking space.

“Our mission is to make geothermal commercially viable everywhere,” says Marshall. “I still believe in that.”

However, Criterion Energy Partners may be even bigger than proving an alternative energy source. Marshall says that geothermal is the foundation on which they are building “a next-generation energy company.” Criterion Energy Partners could be the more stable basis for a whole new energy system.

Sean Marshall and Danny Rehg founded Criterion Energy Partners in 2020. Photos courtesy

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This article originally ran on InnovationMap.

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Texas drivers continue to pump the brakes on EVs, shows new report

EV adoption

Even though Texas is home to Tesla, a major manufacturer of electric vehicles, motorists in the Lone Star State aren’t in the fast lane when it comes to getting behind the wheel of an EV.

U.S. Department of Energy data compiled by Visual Capitalist shows Texas has 689.9 EV registrations per 100,000 people, putting it in 20th place for EV adoption among the 50 states and the District of Columbia. A report released in 2023 by the University of Houston and Texas Southern University found that a little over 5 percent of Texans drove EVs.

California leads all states for EV adoption, with 3,025.6 registrations per 100,000 people, according to Visual Capitalist. In second place is Washington, with an EV adoption rate of 1,805.4 per 100,000.

A recent survey by AAA revealed lingering reluctance among Americans to drive all-electric vehicles.

In the survey, just 16 percent of U.S. adults reported being “very likely” or “likely” to buy an all-electric vehicle as their next car. That’s the lowest level of interest in EVs recorded by AAA since 1999. The share of consumers indicating they’d be “very unlikely” or “unlikely” to buy an EV rose to 63 percent, the highest level since 2022.

Factors cited by EV critics included:

  • High cost to repair batteries (62 percent).
  • High purchase price (59 percent).
  • Ineffective transportation for long-distance travel (57 percent).
  • Lack of convenient public charging stations (56 percent).
  • Fear of battery running out of power while driving (55 percent).

“Since AAA began tracking consumer interest in fully electric vehicles, we’ve observed fluctuations in enthusiasm,” said Doug Shupe, corporate communications manager for AAA Texas. “While automakers continue investing in electrification and expanding EV offerings, many drivers still express hesitation — often tied to concerns about cost, range, and charging infrastructure.”

18 Houston-based energy companies land on Forbes Global 2000 list

Forbes 2000

More than 60 Texas-based companies appear on Forbes’ 2025 list of the world’s 2,000 biggest publicly traded companies, and nearly half come from Houston, the majority in the energy sector.

Among Texas companies whose stock is publicly traded, Spring-based ExxonMobil is the highest ranked at No. 13 globally.

Rounding out Texas’ top five are Houston-based Chevron (No. 30), Dallas-based AT&T (No. 35), Austin-based Oracle (No. 66), and Austin-based Tesla (No. 69).

Ranking first in the world is New York City-based J.P. Morgan Chase.

Forbes compiled this year’s Global 2000 list using data from FactSet Research to analyze the biggest public companies based on four metrics: sales, profit, assets, and market value.

“The annual Forbes Global 2000 list features the companies shaping today’s global markets and moving them worldwide,” said Hank Tucker, a staff writer at Forbes. “This year’s list showcases how despite a complex geopolitical landscape, globalization has continued to fuel decades of economic growth, with the world’s largest companies more than tripling in size across multiple measures in the past 20 years.”

The U.S. topped the list with 612 companies, followed by China with 317 and Japan with 180.

Here are the rest of the Texas-based companies in the Forbes 2000, grouped by the location of their headquarters and followed by their global ranking.

Houston area (those in the energy sector are in bold)

  • ConocoPhillips (No. 105)
  • Phillips 66 (No. 276)
  • SLB (No. 296)
  • EOG Resources (No. 297)
  • Occidental Petroleum (No. 302)
  • Waste Management (No. 351)
  • Kinder Morgan (No. 370)
  • Hewlett Packard Enterprise (No. 379)
  • Baker Hughes (No. 403)
  • Cheniere Energy (No. 415)
  • Corebridge Financial (No. 424)
  • Sysco (No. 448)
  • Halliburton (No. 641)
  • Targa Resources (No. 651)
  • NRG Energy (No. 667)
  • Quanta Services (No. 722)
  • CenterPoint Energy (No. 783)
  • Coterra Energy (No. 1,138)
  • Crown Castle International (No. 1,146)
  • Westlake Corp. (No. 1,199)
  • APA Corp. (No. 1,467)
  • Comfort Systems USA (No. 1,629)
  • Group 1 Automotive (No. 1,653)
  • Talen Energy (No. 1,854)
  • Prosperity Bancshares (No. 1,855)
  • NOV (No. 1,980)

Austin area

  • Dell Technologies (No. 183)
  • Flex (No. 887)
  • Digital Realty Trust (No. 1,063)
  • CrowdStrike (No. 1,490)

Dallas-Fort Worth

  • Caterpillar (No. 118)
  • Charles Schwab (No. 124)
  • McKesson (No. 195)
  • D.R. Horton (No. 365)
  • Texas Instruments (No. 374)
  • Vistra Energy (No. 437)
  • CBRE (No. 582)
  • Kimberly-Clark (No. 639)
  • Tenet Healthcare (No. 691)
  • American Airlines (No. 834)
  • Southwest Airlines (No. 844)
  • Atmos Energy (No. 1,025)
  • Builders FirstSource (No. 1,039)
  • Copart (No. 1,062)
  • Fluor (No. 1,153)
  • Jacobs Solutions (1,232)
  • Globe Life (1,285)
  • AECOM (No. 1,371)
  • Lennox International (No. 1,486)
  • HF Sinclair (No. 1,532)
  • Invitation Homes (No. 1,603)
  • Celanese (No. 1,845)
  • Tyler Technologies (No. 1,942)

San Antonio

  • Valero Energy (No. 397)
  • Cullen/Frost Bankers (No. 1,560)

Midland

  • Diamondback Energy (No. 471)
  • Permian Resources (No. 1,762)
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A version of this article originally appeared on CultureMap.com.

Hydrogen Technology Expo expected to bring largest event yet to NRG Center

where to be

The Hydrogen Technology Expo North America returns to NRG Center this month, June 25-26, and is slated to be the largest yet with an expected 10,000 attendees, 500 exhibitors, 200 speakers and more than 100 hours of content.

The 2025 event will feature cutting-edge technologies, interactive panel discussions and networking opportunities while targeting industries looking to adopt hydrogen and fuel cell technology to help decarbonize their sectors. The event will be co-located with the Carbon Capture Technology Expo North America.

The 2025 expo will introduce the new Ammonia Zone, a dedicated area fostering collaboration with industries leveraging ammonia as a key component in the hydrogen economy. It will also offer one- and two-day passes for the first time.

The expo is divided into five tracks:

  • Strategic forum
  • Hydrogen and alternative fuel production
  • Infrastructure and integration
  • Mobility and propulsion systems
  • Carbon capture, utilization and storage

Speakers include Martin Perez, former associate director for carbon capture at the office of clean energy demonstrations for the U.S. Department of Energy; Frank Wolak, president and CEO of Fuel Cell and Hydrogen Energy Association; Seema Santhakumar, hydrogen market development leader –Americas at Baker Hughes; Rich Byrnes, chief infrastructure officer for Port Houston; and many others. A full list of exhibitors can be found here.

Technologies on display will include storage systems, industrial plant technologies, liquefaction technologies, advanced materials and composites, gasification technology, simulation and evaluation, safety systems, hydrogen fuels, hydrogen injectors, line assemblies, fuel-cell control units and more.

“The Hydrogen Technology Expo offers industry leaders a valuable opportunity to network and stay informed about the latest developments in the rapidly evolving world of hydrogen,” Susan Shifflett, Executive Director at Texas Hydrogen Alliance, said. “We’re a proud partner of the show.”

Entry to the exhibition hall is free of charge. Passes start at $450. Find more information about how to register here.