Exxon acquired drilling rights for more than 100,000 gross acres in southern Arkansas for lithium brine production. (Source: Shutterstock)
Exxon Mobil’s early foray into lithium brine production is “looking more and more promising,” CEO Darren Woods said in third-quarter earnings.
Spring, Texas-based Exxon Mobil Corp. looks to deploy $17 billion into low-carbon investments in the coming years, including carbon capture, hydrogen and biofuels.
But the U.S. oil and gas giant has also quietly evaluated opportunities to produce lithium from brine water in the Smackover formation, Woods said.
“It fits very well with our capabilities and on the cost of supply curve,” Woods said during Exxon’s third-quarter earnings call with analysts. “It’s very competitive, so it looks attractive.”
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So far, Exxon has kept its plans around lithium production close to the chest.
The company acquired drilling rights for more than 100,000 gross acres in southern Arkansas for lithium brine production, The Wall Street Journal reported in May. An Exxon subsidiary, Saltwerx LLC, signed a memorandum of understanding with services company Tetra Technologies Inc. to develop Smackover acreage for potential lithium production, Reuters reported.
Woods said Exxon has challenged Dan Ammann, president of its Low Carbon Solutions segment, to develop a business plan for lithium production that can effectively compete for capital in Exxon’s project portfolio.
“As Dan and his team develop that concept and that potential business, that’s looking more and more promising,” he said. “We see an opportunity to really leverage the things that we’re pretty good at in the base case, and it’s very synergistic with our traditional businesses.”
Other players are also seeing opportunities for lithium production in the Smackover Formation. In early October, Canadian firm Standard Lithium confirmed it found what is believed to be the highest grade lithium brine in North America in the East Texas portion of the Smackover Formation.
Permian Basin giant Pioneer Natural Resources—which Exxon inked a deal to acquire in a $60 billion megadeal last month—has reportedly experimented with mining lithium from wastewater produced from oil and gas extraction, per Bloomberg.
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Closing Denbury deal
On Nov. 2 Exxon Mobil closed its $4.9 billion acquisition of Denbury Inc.—a deal bolstering Exxon’s capabilities in carbon capture, utilization and storage.
Denbury’s portfolio includes the nation’s largest network of CO2 pipelines and access to 10 onshore sites for permanent CO2 sequestration.
Plano, Texas-based Denbury uses its 1,300-mile CO2 pipeline network, somewhat paradoxically, as part of a process to produce barrels of oil. The company’s core business is EOR, where CO2 is injected under pressure into oil-bearing reservoirs to maximize oil recovery from a field.
Exxon was more interested in the existing pipeline network and storage sites, rather than Denbury’s relatively small amount of incremental oil production. But adding Denbury’s EOR assets is expected to provide Exxon immediate cash flow of about $600 million per year.
Denbury reported that its shareholders overwhelmingly approved the combination with Exxon during a special stockholder meeting held Oct. 31.
“We see the potential to drive strong returns with the capacity to reduce the nation’s carbon emissions by 100 million tons per year,” Woods said.
“That’s 20 times our current CO2 offtake agreements with CF Industries, Linde and Nucor, which by themselves could reduce CO2 emissions by an amount equivalent to replacing 2 million cars with EVs, roughly the same number of electric vehicles currently on U.S. roads,” he said.
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