Devon Energy will buy Houston-based Coterra Energy. Photo via Coterra Energy

Oklahoma City, Oklahoma-based Devon Energy has agreed to buy Houston-based Coterra Energy in a $21.5 billion all-stock deal, forming an energy powerhouse that will be headquartered in Houston. The combined company, boasting an enterprise value of $58 billion, will adopt the Devon brand name.

Revenue for the two publicly traded companies totaled nearly $18.8 billion in the first nine months of 2025. Devon is a Fortune 500 company, but Coterra doesn’t appear in the most recent ranking.

The deal, already approved by the boards of both companies, is expected to close in the second quarter of 2026. Once the transaction is completed, Devon shareholders will own about 54 percent of the combined company and Coterra shareholders will own 46 percent.

“This transformative merger combines two companies with proud histories and cultures of operational excellence, creating a premier shale operator,” says Clay Gaspar, Devon’s president and CEO.

The combined company will be one of the world’s largest shale producers, with third-quarter 2025 production exceeding 550 thousand barrels of oil per day and 4.3 billion cubic feet of gas per day. A significant presence in the Delaware Basin, encompassing hundreds of thousands of acres, will anchor the company’s operations. The 10,000-square-mile Delaware Basin is in West Texas and southeastern New Mexico.

The new Devon also will operate in the Permian Basin, located in West Texas and New Mexico; Marcellus Shale, located in five states in the East; and Anadarko Basin, located in the Texas Panhandle, Colorado, Kansas, and Oklahoma.

Gaspar will be president and CEO of the combined company, and Tom Jorden, chairman, president, and CEO of Coterra, will be non-executive chairman.

In January 2025, Constellation Energy Corp. announced plans to acquire Houston's Calpine Corp. Photo via LinkedIn

6 major acquisitions that fueled the Houston energy sector in 2025

2025 In Review

Editor's note: As 2025 comes to a close, we're revisiting the biggest headlines and major milestones of the energy transition sector this year. Here are six major acquisitions that fueled the Houston energy industry in 2025:

Houston-based Calpine Corp. to be acquired in clean energy megadeal

Houston's Calpine Corp. will be acquired by Baltimore-based nuclear power company Constellation Energy Corp. Photo via DOE

In January 2025, Baltimore-based nuclear power company Constellation Energy Corp. and Houston-based Calpine Corp. entered into an agreement where Constellation would acquire Calpine in a cash and stock transaction with an overall net purchase price of $26.6 billion. The deal received final regulatory clearance this month.

Investment giant to acquire TXNM Energy for $11.5 billion

Blackstone Infrastructure, an affiliate of Blackstone Inc., will acquire a major Texas electricity provider. Photo via Shutterstock

In May 2025, Blackstone Infrastructure, an investment giant with $600 million in assets under management, agreed to buy publicly traded TXNM Energy in a debt-and-stock deal valued at $11.5 billion. The deal recently cleared a major regulatory hurdle, but still must be approved by the Public Utility Commission of Texas.

Houston's Rhythm Energy expands nationally with clean power acquisition

PJ Popovic, founder and CEO of Houston-based Rhythm Energy, which has acquired Inspire Clean Energy. Photo courtesy of Rhythm

Houston-based Rhythm Energy Inc. acquired Inspire Clean Energy in June 2025 for an undisclosed amount. The deal allowed Rhythm to immediately scale outside of Texas and into the Northeast, Midwest and mid-Atlantic regions.

Houston American Energy closes acquisition of New York low-carbon fuel co.

Houston American Energy Corp. has acquired Abundia Global Impact Group, which converts plastic and certified biomass waste into high-quality renewable fuels. Photo via Getty Images.

Renewable energy company Houston American Energy Corp. (NYSE: HUSA) acquired Abundia Global Impact Group in July 2025. The acquisition created a combined company focused on converting waste plastics into high-value, drop-in, low-carbon fuels and chemical products.

Chevron gets green light on $53 billion Hess acquisition

With the deal, Chevron gets access to one of the biggest oil finds of the decade. Photo via Chevron

In July 2025, Houston-based Chevron scored a critical ruling in Paris that provided the go-ahead for a $53 billion acquisition of Hess and access to one of the biggest oil finds of the decade. Chevron completed its acquisition of Hess shortly after the ruling from the International Chamber of Commerce in Paris.

Investors close partial acquisition of Phillips 66 subsidiary with growing EV network

Two investment firms have scooped up the majority stake in JET, a subsidiary of Phillips 66 with a rapidly growing EV charging network. Photo via Jet.de Facebook.

In December 2025, Energy Equation Partners, a London-based investment firm focused on clean energy companies, and New York-based Stonepeak completed the acquisition of a 65 percent interest in JET Tankstellen Deutschland GmbH, a subsidiary of Houston oil and gas giant Phillips 66.

Two investment firms have scooped up the majority stake in JET, a subsidiary of Phillips 66 with a rapidly growing EV charging network. Photo via Jet.de Facebook.

Investors close partial acquisition of Phillips 66 subsidiary with growing EV network

M&A activity

Energy Equation Partners, a London-based investment firm focused on clean energy companies, and New York-based Stonepeak have completed the acquisition of a 65 percent interest in JET Tankstellen Deutschland GmbH, a subsidiary of Houston oil and gas giant Phillips 66.

JET is one of the largest and most popular fuel retailers in Germany and Austria with a rapidly growing EV charging network, according to a news release. It also operates approximately 970 service stations, convenience stores and car washes.

“We are delighted to complete this acquisition and to partner with Stonepeak and Phillips 66 to take JET to the next level,” Javed Ahmed, managing partner of Energy Equation Partners, said in a news release. “This investment reflects EEP’s commitment to investing in established players in the energy sector who have the potential to make a meaningful impact on the energy transition, and we are excited to work alongside the entire JET team, including its dedicated service station operators, to realize this vision.”

The deal values JET at approximately $2.8 billion. Phillips 66 will retain a 35 percent non-operated interest in JET and received about $1.6 billion in pre-tax proceeds.

“Under Phillips 66’s ownership, JET has grown into one of the largest fuel retailers in Germany and Austria," Anthony Borreca, senior managing director and co-head of energy at Stonepeak, added in a news release. "We are excited to join forces with them, as well as Javed and the EEP team, who have long-standing experience investing in and operating retail fuel distribution and logistics globally, to support the next phase of JET’s growth.”

Acquisitions, consolidations, divestitures — here's what news of energy transition deals in Houston trended this year. Photo via Getty Images

M&A moves: Most trending Houston energy transition news on big deals from 2024

year in review

Editor's note: As the year comes to a close, EnergyCapital is looking back at the year's top stories in Houston energy transition. From acquisitions to consolidations, this year marked a big one for some of Houston's energy companies. Here were the top five most-read articles covering deals of 2024 — be sure to click through to read the full story.

PE firm acquires Houston renewables fuels infrastructure company

Ara Partners announced this week that it has acquired a majority interest in Houston-based USD Clean Fuels. Image via Shutterstock.

Fresh off its $3 billion fund closure, a Houston private equity firm has made its latest acquisition.

Ara Partners announced this week that it has acquired a majority interest in Houston-based USD Clean Fuels, a developer of logistics infrastructure for renewable fuels. The terms of the deal were not disclosed.

"We have high conviction that the green molecules economy – whether it's renewable fuel feedstocks or biofuels – offers disproportionate opportunity for returns and impact," George Yong, partner and co-head of Infrastructure at Ara Partners, says. Continue reading.

McKinsey acquires Houston-area co. to enhance sustainability services

According to McKinsey data, more than $3.5 trillion will be invested in green hydrogen, carbon capture, renewable energy, and other projects that are working toward net-zero transition by 2050. Photo via ses-estimating.com

A global management consulting company has executed on an acquisition key to its plans amid the energy transition.

McKinsey & Company announced the acquisition of Strategic Estimating Systems, a Sugar Land-based consulting firm specializing in cost estimation for oil, gas, and chemical process industries. The acquisition provides McKinsey with enhanced benchmarking capabilities across capital project management — especially within the energy transition.

The terms of the deal were not disclosed.

"The capital projects ecosystem is presented with a once-in-a-generation chance to aid in transforming economies to achieve net zero," Justin Dahl, partner and global leader of McKinsey & Company's Capital Analytics, says. Continue reading.

Houston chemical company divests new tech arm to PE

Merichem Company has created a new business unit that's been acquired by a private equity firm. Photo via Getty Images

A New Orleans-based private equity firm has announced the acquisition of a Houston chemical company's technology business unit, the business announced today.

Black Bay Energy Capital acquired a portion of Merichem Company’s business — including its Merichem Process Technologies and Merichem Catalyst Products, which will collectively be renamed Merichem Technologies. Merichem's caustic services business, which handles spent caustic for beneficial reuse, will be maintained by the company.

Cyndie Fredrick has been promoted to CEO of Merichem Technologies. She previously served as Merichem's senior vice president and general manager of Merichem Process Technologies. She's joined by CFO Rene Campos, Senior Vice President of Technology Jeff Gomach, and Senior Vice President of Catalysts William Rouleau, who are all former managers within Merichem.

“The Merichem Technologies team has successfully deployed highly engineered and patented technologies, chemical catalysts, and mechanical solutions to various end markets including liquified natural gas, midstream oil and gas, refining of traditional crude and renewable feedstocks, biogas/landfill/RNG production, geothermal energy production, and chemical manufacturing," Fredrick says. Continue reading.

SLB to consolidate carbon capture business in partnership

The combined technology portfolios will accelerate the introduction of promising early-stage decarbonization technology. Photo via Getty Images

SLB announced its plans to combine its carbon capture business with Norway company, Aker Carbon Capture.

Upon completion of the transaction, which is expected to close by the end of the second quarter of this year, SLB will own 80 percent of the combined business and ACC will own 20 percent.

According to a SLB news release, the combined technology portfolios will accelerate the introduction of promising early-stage decarbonization technology.

“For CCUS to have the expected impact on supporting global net-zero ambitions, it will need to scale up 100-200 times in less than three decades,” Olivier Le Peuch, CEO of SLB, says. Continue reading.

Houston-based co. closes acquisition of 50 percent stake in Texas cogeneration facility

Fengate has completed the acquisition of a 50 percent stake in a Texas cogeneration facility, which supplies power and steam to a major industrial site. Photo via Fengate

Fengate Asset Management announced the financial close on the acquisition of a 50 percent interest in Freeport Power Limited, which owns a 440-megawatt cogeneration facility in Freeport, Texas.

FPL is located near the Freeport Energy Center, which is a 260-megawatt cogeneration facility that is currently owned and managed by Fengate. The two facilities work to provide cost-effective power and steam to Dow’s Freeport site, which is the largest integrated chemical manufacturing complex in the Western Hemisphere.

“We are thrilled to have closed this acquisition, which aligns with our strategy of acquiring behind-the-meter cogeneration projects with strong industrial partners like Dow,” Greg Calhoun, managing director of Infrastructure Investments at Fengate, says. Continue reading.

Ian Goldberg joins the Houston office of Akin. Photo via akingump.com

Law firm's Houston office expands energy expertise

new hire

Leading adviser to energy companies, Akin Gump Strauss Hauer & Feld, has announced a new energy transactions partner in the firm’s Houston office.

Ian Goldberg will advise clients on various energy transactions, which will include project development, mergers and acquisitions, divestitures, and financial transactions that will involve oil and gas assets, energy transition investments and rare earth mineral deposits.

He previously led the energy transactions practice at Hunton Andrews Kurth.

“Akin has a top-tier integrated platform across the entire energy value chain,” Goldberg says in a news release.” I’m excited to be joining a growing and dynamic team.”

He will be joining recent additions to Akin’s energy practice that include projects & energy transition partners Ike Emehelu (New York), Alex Harrison, Matt Hardwick and Dan Giemajner (London), energy regulatory partners Emily Mallen and Stephen Hug (Washington, D.C.), tax equity partner Sam Guthrie (Washington, D.C.) and projects & energy transition partner Vanessa Richelle Wilson (Washington, D.C.)..

“Ian adds depth to our energy team with extensive experience in the onshore and offshore upstream and midstream sectors, and his current representation of clients in the carbon capture, utilization & storage and hydrogen spaces further strengthens our growing projects & energy transition practice,” corporate practice co-head Zachary Wittenberg adds in the release.

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Tesla's EV Robotaxis officially launch in Texas' largest metros

On The Road

Tesla’s Robotaxi service has taken to the streets of Houston. In a brief statement Saturday, April 18 on its X social media account, Tesla Robotaxi says the autonomous rideshare service just launched in Texas’ two biggest metro areas — Houston and Dallas.

“Try Tesla Robotaxi in Dallas & Houston!” Tesla CEO Elon Musk says in a reposting on X of the Robotaxi announcement.

One of Robotaxi’s competitors, Alphabet-owned Waymo, beat the Tesla service to the Dallas, Houston, and Austin markets. Another competitor, Amazon-owned Zoox, has Dallas flagged for its autonomous rideshare service.

Robotaxi previously kicked off in Austin, where Tesla is based and manufactures electric vehicles, and the San Francisco Bay Area. Nearly 50 Robotaxis operate in Austin, where the service’s inaugural rides happened last year, and more than 500 in the San Francisco area.

Of the three rides logged in a 31-square-mile area in Dallas as of Monday morning, the average fare was $7.96 and the average trip was 3.5 miles, according to an online tracker of autonomous rideshare services. The tracker showed only one Robotaxi was on the roads in Dallas.

As of Monday morning, a 25-square-mile area in Houston had two Robotaxis on the road, according to the online tracker. The average fare for five recorded rides was $11.34 and the average trip was six miles.

“We want Robotaxi pricing to be simple and easy for you to understand,” according to the Robotaxi website. “Initially, as part of our introductory program, we will charge a simple, affordable rate plus applicable taxes and fees for all rides within the available service area.”

The tracker shows the Robotaxi in Dallas did not have a human aboard to monitor each trip, and only one of Houston’s two Robotaxis did not have a human monitor in the driver’s seat.

For now, all passengers ride in Tesla Model Y cars. Robotaxi operates from 6 am-2 am daily.

To use the service, you first must download the Robotaxi app, which works only on iPhones.

Robotaxi lets you stream music and adjust climate settings and seat positioning from the Robotaxi app or the vehicle’s touchscreen. Climate and media settings are stored in your Robotaxi profile and automatically transfer from one vehicle to another. If you own a Tesla, certain profile settings and media preferences are available in your own car as well as in a Robotaxi.

In January at the World Economic Forum in Davos, Switzerland, Musk said a “widespread” network of driverless rideshare vehicles would be operating in the U.S. by the end of this year, CNBC reported.

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This article originally appeared on CultureMap.com.

Major Texas energy port wrestles with water crisis due to years of drought

Resource Report

In parched southern Texas, a yearslong drought has depleted Corpus Christi's water reserves so gravely that the city is scrambling to prevent a shortage that could force painful cutbacks for residents and hobble the refineries and petrochemical plants in a major energy port.

Experts said the city didn't expect such a bad drought, and new sources of reliable water didn't arrive as expected. Those problems arose as the city increased its water sales to big industrial customers.

“We just have not kept up with water supply and water infrastructure like we should have. And it's decades in the making,” said Peter Zanoni, the city manager since 2019.

Corpus Christi, a city of about 317,000 people that also supplies water to nearby counties, is closely tied to its oil and gas industry. The region makes everyday essentials like fuel and steel and ships them to the world.

Zanoni said it is highly unlikely the city will run out of water, but without significant rainfall or new sources, residents may face forced cutbacks and industry may have to do with less. At a time when the Iran war is already raising gas prices, the shortage is hitting an area that produces 5% of the U.S. gasoline supply.

Droughts are common, but this one has dragged on for most of the past seven years. Key reservoirs are at their lowest point ever. The quickest fix is different weather.

“We are actively praying for a hurricane,” former city council member David Loeb said, half in jest. Loeb doesn't want anyone injured, but after wrestling with previous droughts in his time on the council, he feels the lack of rain acutely.

The drought isn't expected to lift by summer, leaving officials scrambling to tap more groundwater to avoid an emergency.

Lessons from last time

After the last drought in the early 2010s, the city approved a pipeline extension to bring in more water from the Colorado River and promoted conservation. In the years that followed, water use actually fell. The city, seeing opportunity, added a petrochemical plant and steel mill to its long list of industrial customers.

City officials had allowed for drought in their calculations — just not this kind of drought, Zanoni said. It has hit especially hard because reservoirs never fully recharged after the last one.

And it's come at a bad time.

After many years, the pipeline extension finally delivered its full capacity only last year. Meanwhile, discussion of building a desalination plant that would remove salt from seawater — a potentially drought-proof solution recommended in 2016 — bogged down over concerns about costs as high as $1.3 billion and environmental impact.

“If the then-city council had followed through on that, we would have had that plant up and running by now,” Zanoni said.

It's an industry town

Corpus Christi has followed its long-established plan for reducing water use. Stage 1 seeks voluntary actions from citizens like taking shorter showers and limiting how often they can water. Currently, the city is in Stage 3, which means pauses on many outdoor water uses.

Many residents are angry that they can’t water their lawns, that their bills are set to rise sharply and that they may face fines, said Isabel Araiza, co-founder of a grassroots group active on water issues. Some don’t feel industry will be asked to share in the pain, she said.

The city's drought plan allows for charging residents and businesses extra if they use lots of water. But big industry, which Zanoni says consumes as much as 60% of the city's water, can opt to pay a permanent surcharge to avoid the possibility of having a much larger fee added in times of drought.

Araiza calls it a bad system. Once industry pays the surcharge, she said, they have no incentive to conserve water.

The city has defended the system, saying in a statement that industry does not “get a pass on water conservation” or forced curtailment. The statement said the business surcharges have raised $6 million a year.

It is wrong to suggest industry isn’t helping, said Bob Paulison, executive director of the Coastal Bend Industry Association. Companies have stopped landscaping, they recycle water for essential cooling needs and they are looking for alternative water sources, he said.

The city hasn't imposed extra costs on anyone yet.

But Zanoni said water rates may eventually double as the city invests roughly $1 billion on infrastructure — costs that some argue will disproportionately benefit industry and make life for residents more expensive.

What's the way out?

The city is in a water emergency when it has 180 days before water supply can't keep up with demand. Officials have run through different scenarios for getting new water and the drought easing, and have said an emergency could come as early as May, as late as October, or not at all.

The city has tapped into millions of gallons of new groundwater, and it hopes to get even more.

The biggest unknown is the Evangeline Groundwater Project, which involves a pipeline and about two dozen wells that could add enough water to head off an emergency. It still needs state approval but the city hopes water could be flowing as soon as November. New sources come with drawbacks – some have raised water quality concerns, and there are worries too much pumping could deplete groundwater.

If the city has to declare a water emergency, it would be able to more aggressively curtail water use – mandatory reductions that would apply evenly to all industry and residents. That is a sensitive decision and is likely to be a “knock-down drag-out bloodbath,” Loeb said.

Because residents on average have already reduced their water use, future mandatory cuts are likely to fall heavier on industry.

“It’ll be an unbelievable disaster,” said Don Roach, former assistant general manager of the San Patricio Municipal Water District that has lots of industrial customers in the area. “When you cut the cooling water off to most of these industries, they just have to shut down. There’s no other way around it.”

Paulison said companies that produce fuel, polymers, iron and steel “have the least amount of flexibility in just cutting water usage.” He added, however, that companies remain optimistic they can reduce usage, adapt and continue operations.

Zanoni said the city's plans should buy time to avert the worst.

“We are hoping we don’t get there, but we don’t work on hope,” he said.

Fervo Energy officially files for initial public offering

going public

Fervo Energy has officially filed for IPO.

The Houston-based geothermal unicorn filed a registration statement on Form S-1 with the U.S. Securities and Exchange Commission on April 17 to list its Class A common stock on the Nasdaq exchange. Fervo intends to be listed under the ticker symbol "FRVO."

The number and price of the shares have not yet been determined, according to a news release from Fervo. J.P. Morgan, BofA Securities, RBC Capital Markets and Barclays are leading the offering.

The highly anticipated filing comes as Fervo readies its flagship Cape Station geothermal project to deliver its first power later this year

"Today, miles-long lines for gasoline have been replaced by lines for electricity. Tech companies compete for megawatts to claim AI market share. Manufacturers jockey for power to strengthen American industry. Utilities demand clean, firm electricity to stabilize the grid," Fervo CEO Tim Latimer shared in the filing. "Fervo is prepared to serve all of these customers. Not with complex, idiosyncratic projects but with a simplified, standardized product capable of delivering around-the-clock, carbon-free power using proven oil and gas technology."

Fervo has been preparing to file for IPO for months. Axios Pro first reported that the company "quietly" filed for an IPO in January and estimated it would be valued between $2 billion and $3 billion.

Fervo also closed $421 million in non-recourse debt financing for the first phase of Cape Station last month and raised a $462 million Series E in December. The company also announced the addition of four heavyweights to its board of directors last week, including Meg Whitman, former CEO of eBay, Hewlett-Packard, and Spring-based HPE.

Fervo reported a net loss of $70.5 million for the 2025 fiscal year in the S-1 filing and a loss of $41.1 million in 2024.

Tracxn.com estimates that Fervo has raised $1.12 billion over 12 funding rounds. The company was founded in 2017 by Latimer and CTO Jack Norbeck.