Houston energy co. accelerates Beaumont storage expansion after key investment deal

deal is in motion

Houston-based Caliche Development Partners begins doubling natural gas storage capacity and building the world’s largest helium cavern, fueled by a key Texas deal completion. Photo courtesy of Caliche

With the acquisition of its Texas business now complete, Houston-based Caliche Development Partners is moving ahead with expansion of a natural gas storage project in Beaumont.

This milestone comes after a previously announced majority investment in Caliche by New York City-based investment firm Sixth Street, which has offices in Houston, Austin, and Dallas. Sixth Street recently closed on the Texas portion of the deal, and it expects to wrap up the California portion of the deal in mid-2025.

The amount of Sixth Street’s investment in Caliche wasn’t disclosed.

Completion of the deal’s Texas component gave Caliche the go-ahead to start spending Sixth Street’s money on the Beaumont project.

Caliche already has started construction on the 14 billion-cubic-feet expansion of its Golden Triangle Storage natural gas storage facilities. Two new caverns, expected to come online in 2026 and 2027, will double total storage capacity to 28 billion cubic feet (Bcf).

The Golden Triangle Storage system connects to seven major pipelines in the Beaumont-Port Arthur area.

Meanwhile, Caliche has started construction on what’s billed as the world’s largest helium storage cavern, also located at the Golden Triangle site. This cavern is slated to begin operating in 2025, while Caliche expects its planned carbon sequestration project located just four miles west of Golden Triangle to enter the next phase of the Class VI permitting process by May 2026.

Caliche is an acquisition and development company that specializes in underground storage of natural gas, industrial gasses like hydrogen and helium, and carbon emissions. Caliche’s projects are in the Texas Gulf Coast’s Jefferson County and Northern California’s Colusa County.

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

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

here's the deal

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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Fervo Energy strikes largest-ever power deal with Google

geothermal milestone

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 a news release from 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.

Fervo applies oil-and-gas fracking technology to create geothermal reservoirs and generate electricity.

The first phase of Cape Station is expected to begin delivering geothermal power by late 2026, reaching about 100 megawatts of capacity by early 2027. The second phase, set for completion in 2028, will add 400 megawatts of capacity.

Fervo co-founder and CEO Tim Latimer said in a release that the Google agreement supports enhanced geothermal systems as a key power source for “the next generation of computing infrastructure.”

“The next chapter of advanced power generation technology is being written in Utah,” said Lucia Tian, director of advanced energy technologies at Google.

The Fervo-Google agreement builds on an existing partnership. Fervo’s Project Red pilot development in Nevada, which came online in 2023, supplies power to the local grid. Users of the grid power include Google’s data centers in Nevada.

Fervo subsequently signed a 115-megawatt purchase agreement with Google and NV Energy. The deal enabled Google to bring more geothermal energy to the Nevada grid while insulating everyday customers from the project’s costs.

The latest Google deal is part of the ongoing expansion of Cape Station beyond its initial 100-megawatt phase. Fervo says Cape Station will be the world’s largest enhanced geothermal facility.

The Google agreement comes during a milestone year for Fervo, which was founded in 2017. In May, Fervo’s IPO raised $2.2 billion. The company, whose early investors include Bill Gates, is now valued at $5.65 billion.

8+ Houston energy events you must attend in September 2026

Must-attend meetings

Editor's note: September is here, and that means the return of some of Houston's biggest energy events of the year. On the agenda are exciting week-long energy and climate happenings, conferences, and more. Mark your calendars for these top Houston energy transition events taking place in September 2026, and register now.

September 13-18: Houston Energy & Climate Week

Houston Energy & Climate Week is a six-day gathering that welcomes an unparalleled selection of global energy leaders and communities to the energy capital of the world for a full slate of events, from tech tours and networking to a climatetech summit and digital symposium.

This event kicks off September 13 and continues for six days. Find details here.

September 14-18: Houston Energy + Climate Startup Week

Launched in 2024, the official Houston Energy and Climate Startup Week returns for its third year, showcasing how Houston is developing and scaling real solutions by meeting growing global energy demand while reducing carbon emissions. Join leading energy and climate venture capital investors, industry leaders, and startups from around the world for this showcase of the most innovative companies and technologies that are transforming the energy industry while driving a sustainable, low-carbon energy future.

This event kicks off September 14 and continues all week. Find details here.

September 16-17: Energy Tech Venture Forum

The Rice Alliance Energy Tech Venture Forum (ETVF) brings together the founders, investors, corporate leaders, and operators building the next generation of energy systems. ETVF is where breakthrough ideas meet the capital, partnerships, and industry expertise needed to accelerate commercialization and deployment. The 23rd Energy Tech Venture Forum will take place as an anchor event for Houston Energy + Climate Startup Week.

This event begins September 16 at Rice University. Early bird registration is available here.

September 20-23: 2026 Geothermal Rising Conference

Geothermal Rising Conference is the industry’s flagship annual conference, reflecting the global nature of the geothermal industry while highlighting the width and breadth of the community. The conference offers technical, policy, and market sessions, educational seminars, tours of geothermal and renewable energy projects, and numerous networking opportunities. An additional expo showcases projects, services, and state-of-the-art technology and equipment for the geothermal community.

This event begins September 20 at Marriott Marquis Houston. Register here.

September 22-23: 2026 API Offshore Safe Lifting Conference & Expo

The 2026 API Offshore Safe Lifting Conference & Expo is your opportunity to see the latest offshore developments while sharing experiences, practices, and even information on real-life incidents. The 2026 program features two full days of technical sessions, regulatory insights, and networking focused on advancing offshore lifting safety, with keynotes, emerging technologies, and multiple networking opportunities.

This event begins September 22 at the Royal Sonesta Houston Galleria. Register here.

September 22-24: Intelligent Asset Management in Energy Summit

The Intelligent Asset Management in Energy Summit is the premier North American event dedicated to helping energy leaders unlock the full potential of their assets through advanced analytics, predictive maintenance, and integrated digital strategies. The 2026 summit will cover how innovative asset management solutions can reduce downtime, optimize performance, and deliver measurable ROI in a rapidly evolving energy landscape.

This event begins September 22 at Norris Conference Center. Register here.

September 24: Grid Flexibility Summit

The executive-level event focuses on managing surging power loads, ERCOT market challenges, and grid modernization. Through candid discussions and real-world case studies, attendees will explore how grid flexibility can act as a reliability resource, how C&I customers can become active grid partners, and how a flexible grid buys time for the development of utility-scale projects. Designed as an intimate, decision-focused forum, the event prioritizes practical insights over theory — and action over aspiration.

This event takes place September 24 at Clifford Chance. Register here.

September 29-30: Gas to Grid Infrastructure Summit

The Gas to Grid Infrastructure Summit addresses the practical infrastructure challenge behind AI growth: how to deliver reliable, scalable, affordable, and lower-carbon power when grid capacity, gas supply, equipment lead times, and permitting timelines are all under pressure. This is where utilities, midstream operators, data center developers, OEMs, EPCs, investors, regulators, and technology providers meet to define the commercial, technical, and regulatory pathways for the next wave of gas-fired and grid-connected infrastructure.

This event begins September 29 at Norris Conference Center. Register here.

SLB to expand data center cooling business via $4 billion acquisition

cool deal

Houston’s SLB has announced plans to acquire German thermal management and heat exchange technology organization Kelvion for approximately $4 billion.

SLB reports in a news release that the acquisition is expected to boost its Data Center Solutions business, as thermal management technologies are key to cooling artificial-intelligence-related infrastructure. Data centers continue to pose numerous challenges, but SLB believes thermal management technology can help ease energy burdens.

“Data centers are becoming more sophisticated and energy-intensive, and customers are increasingly looking for partners that can optimize how critical systems work together across the facility and help bring new capacity online faster,” Gavin Rennick, president of SLB’s New Energy and Industrial business, said in the release. “Thermal management is central to that challenge, and this acquisition allows us to address it directly by delivering more integrated cooling solutions, accelerating innovation, optimizing thermal efficiency, and more directly embedding thermal management into our modular infrastructure offering.”

SLB will acquire Kelvion from funds managed by New York-based financial services group Apollo Global Management Inc. for approximately $3.4 billion in cash and will assume about $700 million of debt, according to the release. The deal is expected to close in Q1 of 2027.

SLB says the acquisition will help it dramatically scale revenue generated by the data center sector.

“This transaction accelerates our ambition to become an industrial technology partner to the data center industry and help customers address the growing infrastructure complexity required to scale AI,” Olivier Le Peuch, CEO of SLB, added in a news release. “Kelvion advances our path toward more integrated data center infrastructure solutions, expands our addressable market — more than doubling our revenue opportunity per gigawatt of delivered capacity — and allows us to scale both our offerings and the global reach of the business.”

SLB reports that it expects its Data Center Solutions business revenues to grow by more than 90 percent annually between 2024 and 2026.

If the acquisition is approved, the combined company will target revenue of $4.5 billion to $5 billion for its data center solutions business in 2028, according to the release.

Kelvion has previously served customers in AI infrastructure, energy system transformation and energy/ industrial markets. Its past work focuses on heat pumps, renewables, carbon capture and processing solutions for thermal management. According to the news release, Kelvion's data center revenue is expected to reach about $1.2 billion in 2026, and the sector is considered the company’s "largest and fastest-growing end market.

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