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Investor acquires majority stake in Houston energy storage, CCS co.

here's the deal

Caliche says Sixth Street’s backing will enable it to expand its Golden Storage Triangle complex. Photo via calichestorage.com

Investment firm Sixth Street has purchased a majority stake in Houston-based Caliche Development Partners, which focuses on buying, developing, and operating natural gas and gas storage facilities along with carbon sequestration projects.

Financial terms weren’t disclosed.

The deal includes Caliche’s Golden Triangle Storage facilities and carbon sequestration project in Beaumont, and its Central Valley Gas Storage facilities in Princeton, California.

Caliche says Sixth Street’s backing will enable it to expand its Golden Storage Triangle complex, including the addition of two natural gas caverns.

Caliche’s leadership will continue to oversee day-to-day operations and remain investors in the company. All employees in Caliche’s Texas and California offices and at its facilities are staying aboard.

“We continue to meet the growing demand for the storage of natural gas and industrial gasses, including helium and hydrogen, and provide the infrastructure for lower environmental impact forms of energy through our commitment to safety, deliverability, [and] asset integrity,” Dave Marchese, CEO of Caliche, says in a news release.

Richard Sberlati, a partner at Sixth Street, which has an office in Houston, says Caliche’s success “comes from a combined 65 years of collective storage experience, and we look forward to partnering with the company’s management as they further grow the business.”

Sixth Street’s acquisition of Caliche’s Texas business operations is expected to close in late 2024, and its acquisition of the California business operations is set to close in mid-2025.

Founded in 2016, Caliche announced in 2020 that it had arranged a $150 million debt facility with Houston-based investment firm Orion Infrastructure Capital. Two years later, Caliche gained $268 million in funding from Orion and Chicago-based asset management firm GCM Grosvenor.

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7 Houstonians from energy sector make Forbes list of richest Americans

Rich List

The richest billionaires in America have a collective worth of $8 trillion in 2026, a staggering $1.4 trillion increase since last year, says Forbes. American billionaires are so wealthy that it now takes an unprecedented $4.4 billion net worth to be considered one of the richest people in the country. And one local billionaire has regained the title as Houston's wealthiest resident.

The annual Forbes 400 list is a definitive ranking of the wealthiest Americans, using interviews, financial data, and documentation provided by billionaires and their companies. In all, 43 billionaires across Texas made it on the 2026 list, and 10 are based in Houston. Seven of them have ties to the energy industry.

Oil tycoon Jeffery Hildebrand, 67, now reigns as the No. 1 richest Houstonian, the 9th richest Texan, and the 88th richest person in America for 2026. Hildebrand's net worth has surged $4.7 billion since last year, bringing his current net worth to $14.7 billion. He cofounded Hilcorp, one of the largest privately owned oil and natural gas producers in the U.S., in 1990 and served as its CEO until 2018. He still serves as the chairman of the company.

Kinder Morgan chairman Richard Kinder is the No. 2 richest in Houston. Kinder, 81, was dubbed Houston's richest billionaire in the 2025 Forbes 400 list. His net worth has increased from $11.1 billion to $12.9 billion in just one year. He is the 11th richest Texan and the 100th richest person in America.

Houston pipeline heir Randa Duncan Williams ranks 124th on the list with an estimated net worth of $11.7 billion. Fellow pipeline heirs Dannine Avara and Milane Frantz tie for 128th nationally. Each has an estimated net worth of $11.6 billion. Scott Duncan ties for No. 137 with an $11.3 billion estimated net worth.

Energy exploration chief executive George Bishop of GeoSothern Energy ranks No. 380 with an estimated net worth of $4.5 billion. Last year: $4.7 billion.

Here's how the rest of Houston's billionaires, outside of the energy industry, ranked on this year's list:

  • Toyota mega-dealer Dan Friedkin, 61, is the 102nd richest American with an estimated net worth of $12.9 billion, up from $9.7 billion last year. He most notably owns Gulf States Toyota, which sold $14.5 billion worth of Toyotas in 2025, per Forbes.
  • Hospitality honcho Tilman Fertitta, 69, has a net worth of $12.3 billion and is the 110th richest American. Fertitta owns hospitality corporation Fertitta Entertainment and the NBA team Houston Rockets. He most recently purchased the WNBA's Connecticut Sun and plans to relocate them to Houston under the Houston Comets name in 2027. He also keeps himself busy as President Trump's ambassador to Italy.
  • Texans owner and CEO Cal McNair, 64, ranks as the 218th richest person in America with an estimated net worth of $7.7 billion.

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A version of this article first appeared on CultureMap.com.

Houston-based ENGIE wins national award for clean energy leadership

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Houston-based ENGIE has been recognized for its work in the clean energy space.

The battery storage and energy infrastructure company recently won the 2026 Green Power Leadership Award in the Market Innovation category for its work advancing 24/7 renewable energy solutions. The awards honor individuals and companies advancing sustainability and renewables in the energy industry through innovation and leadership.

The Center for Resource Solutions (CRS), a San Francisco-based environmental nonprofit, grants the awards each year during the Renewable Energy Markets conference. Past recipients include companies like Microsoft, Salesforce and Google. Other award categories include Education & Awareness, Impactful Procurement and Leader of the Year.

"This recognition reflects ENGIE's commitment to developing innovative solutions that give customers greater transparency, accountability and confidence in their sustainability strategies," Anne-Laure Chassanite, interim CEO of ENGIE North America and CEO of ENGIE Resources, said in a news release.

Specifically, the honor recognizes ENGIE's Energy+ 24/7 solution, which helps customers better understand the impact of their energy consumption while also pushing sustainability efforts. ENGIE assists organizations and the public in gaining insight into renewable energy and hourly electricity consumption to see where clean energy is being utilized most effectively.

"As the market continues to evolve, we believe the future of renewable energy procurement lies in helping organizations better understand the impact of their electricity consumption and make more informed energy decisions,” Chassanite added in the release.” Our 24/7 offering is helping establish a new standard by combining innovation with practical, scalable solutions that support meaningful progress toward sustainability goals."

ENGIE's US Energy+ team was also recognized for its customer-focused renewable energy solutions.

"This achievement is the result of the dedication and innovation of teams across ENGIE who are continually challenging what's possible in the energy transition," Chassanite also said in the release.

In June, ENGIE’s 24/7 signed an agreement with Aker BioMarine to supply Texas-sourced clean energy to the Norwegian company's Houston manufacturing site.

Fervo and Google strike major deal and more top energy transition news

Top Energy News

Editor's note: September is a big month for the energy sector in Houston, bringing marquee events to town, alongside big news headlines. From a Fervo-Google powerhouse deal to NVIDIA's $2 billion investment, here are the five most-read energy transition headlines published September 1-15, 2026:

Fervo Energy strikes largest-ever power deal with Google

In its largest-ever purchase agreement, Houston-based geothermal company Fervo Energy will supply 396 megawatts of power to tech powerhouse Google. The deal includes an option for Google to expand capacity by about 600 megawatts, for a total of 1 gigawatt, by June 2030, according to Fervo. Financial terms weren’t disclosed. Google will purchase carbon-free energy from Fervo for a potential data center in Utah, where Fervo is building its more than $2 billion Cape Station geothermal project. Continue reading.

In $2 billion deal, NVIDIA takes 20% stake in Woodlands-based Lancium

Lancium has partnered with AI leader NVIDIA. Photo courtesy Lancium

With an initial investment of $2 billion, AI chip manufacturer NVIDIA just acquired a 20 percent stake in The Woodlands-based Lancium, which develops large-scale campuses that combine AI data centers and onsite power supplies. Lancium didn’t disclose the dollar amount. The Information, a news website, reported NVIDIA’s investment totaled $2 billion, with the possibility of an additional $1 billion if Lancium achieves certain milestones. Continue reading.

Meet the 80+ startups pitching at Houston Energy and Climate Week

One of the highlights from Houston Energy and Climate Week is hearing directly from the up-and-coming founders working to reshape the energy landscape. This year, dozens of startups from Brazil to Berkeley and from right here in the Bayou City will compete for cash prizes and bragging rights while showcasing their concepts at HECW pitch events. Continue reading.

San Antonio company breaks ground on 347MW solar project outside of Houston

Crews have broken ground on the forthcoming 347-megawatt direct-current SunRoper Solar project in Wharton County, Texas, that will add capacity to the ERCOT grid. The solar project, which is slated to begin operations in December 2027, will provide electricity to an undisclosed Fortune 100 company under a long-term power purchase agreement. Continue reading.

UH team lands $2.9M DOE grant to develop next-gen magnets with AI

University of Houston researchers are leading an effort to find alternatives to a key element of the U.S. economy. A UH-led coalition is exploring the use of AI to design and manufacture next-generation permanent magnets for the energy and industrial sectors. The project seeks to develop new, more sustainable magnets that reduce U.S. reliance on vulnerable foreign sources of critical minerals, primarily China. A nearly $2.9 million grant from the U.S. Department of Energy supports the work. Continue reading.

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