digging in

ExxonMobil breaks ground on Texas carbon dioxide storage project

The rig stands 225 feet tall and extends 8,000 feet below the subsurface. Photo via exxonmobil.com

ExxonMobil announced this month that it has officially broken ground on a groundbreaking carbon dioxide storage site.

According to a release from the company, a new rig is currently being used to gather information about an underground site in Southeast Texas. The rig stands 225 feet tall, but more importantly extends 8,000 feet below the subsurface to investigate if the site is a safe place to store carbon underground.

“Everyone’s excited about this appraisal well because we’re literally breaking ground on a new chapter of our work to help reduce industrial emissions,” Joe Colletti, who oversees carbon capture and storage development along the Gulf Coast for Exxon, says in a statement.

Exxon plans to move the rig to other sites in the Gulf Coast in the future for clients Nucor Corp., CF Industries and Linde.

In the last year, Exxon has made agreements with these regional companies to store carbon captured from their operations.

  • Exxon agreed to transport and permanently store up to 2.2 million metric tons of carbon dioxide each year from Linde’s hydrogen production facility in Beaumont, Texas when it launches in 2025.
  • Exxon agreed to store up to 2 million metric tons per year of CO2 captured from CF Industries’ ammonia plant in Donaldsonville, Louisiana, starting in 2025.
  • Exxon agreed to capture, transport and store up to 800,000 metric tons per year of CO2 from Nucor’s direct reduced iron manufacturing site in Convent, Louisiana starting in 2026.

Together, the three agreements represent a total of 5 million metric tons per year that Exxon plans to transport and store for third-party customers.

“Our agreement with Nucor is the latest example of how we’re delivering on our mission to help accelerate the world's path to net zero and build a compelling new business,” Dan Ammann, president of ExxonMobil Low Carbon Solutions, says in a statement over the summer. “Momentum is building as customers recognize our ability to solve emission challenges at scale.”

In addition to the carbon storage agreements, the energy giant also completed the acquisition of Denbury Inc. this month in an all-stock transaction valued at $4.9 billion. The deal adds more than 1,300 miles, including nearly 925 miles of CO2 pipelines in Louisiana, Texas and Mississippi to Exxon's CO2 pipeline network.

The deal was first announced this summer.

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A View From HETI

Chevron plans to launch its first AI data center power project in West Texas in 2027. Photo via Chevron.com

Two of the Houston area’s oil and gas goliaths, Chevron and ExxonMobil, are duking it out in the emerging market for natural gas-powered data centers—centers that would ease the burden on electric grids.

Chevron said it’s negotiating with an unnamed company to supply natural gas-generated power for the data center industry, whose energy consumption is soaring mostly due to AI. The power would come from a 2.5-gigawatt plant that Chevron plans to build in West Texas. The company says the plant could eventually accommodate 5 gigawatts of power generation.

The Chevron plant is expected to come online in 2027. A final decision on investing in the plant will be made next year, Jeff Gustavson, vice president of Chevron’s low-carbon energy business, said at a recent gathering for investors.

“Demand for gas is expected to grow even faster than for oil, including the critical role gas will play [in] providing the energy backbone for data centers and advanced computing,” Gustavson said.

In January, the company’s Chevron USA subsidiary unveiled a partnership with investment firm Engine No. 1 and energy equipment manufacturer GE Vernova to develop large-scale natural gas power plants co-located with data centers.

The plants will feature behind-the-meter energy generation and storage systems on the customer side of the electricity meter, meaning they supply power directly to a customer without being connected to an electric grid. The venture is expected to start delivering power by the end of 2027.

Chevron rival ExxonMobil is focusing on data centers in a slightly different way.

ExxonMobil Chairman and CEO Darren Woods said the company aims to enable the capture of more than 90 percent of emissions from data centers. The company would achieve this by building natural gas plants that incorporate carbon capture and storage technology. These plants would “bring a unique advantage” to the power market for data centers, Woods said.

“In the near to medium term, we are probably the only realistic game in town to accomplish that,” he said during ExxonMobil’s third-quarter earnings call. “I think we can do it pretty effectively.”

Woods said ExxonMobil is in advanced talks with hyperscalers, or large-scale providers of cloud computing services, to equip their data centers with low-carbon energy.

“We will see what gets translated into actual contracts and then into construction,” he said.

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