The offshore site is adjacent to a CO2 pipeline network that ExxonMobil acquired in 2023 with its $4.9 billion purchase of Plano-based Denbury Resources. Photo via ExxonMobil.com

Spring-based ExxonMobil continues to ramp up its carbon capture and storage business with a new offshore lease and a new CCS customer.

On October 10, ExxonMobil announced it had signed the biggest offshore carbon dioxide storage lease in the U.S. ExxonMobil says the more than 271,000-acre site, being leased from the Texas General Land Office, complements the onshore CO2 storage portfolio that it’s assembling.

“This is yet another sign of our commitment to CCS and the strides we’ve been able to make,” Dan Ammann, president of ExxonMobil Low Carbon Solutions, says in a news release.

The offshore site is adjacent to a CO2 pipeline network that ExxonMobil acquired in 2023 with its $4.9 billion purchase of Plano-based Denbury Resources.

Ammann told Forbes that when it comes to available acreage in the Gulf Coast, this site is “the largest and most attractive from a geological point of view.”

The initial customer for the newly purchased site will be Northbrook, Illinois-based CF Industries, Forbes reported.

This summer, ExxonMobil sealed a deal to remove up to 500,000 metric tons of CO2 each year from CF’s nitrogen plant in Yazoo City, Mississippi. CF has earmarked about $100 million to build a CO2 dehydration and compression unit at the plant.

A couple of days before the lease announcement, Ammann said in a LinkedIn post that ExxonMobil had agreed to transport and annually store up to 1.2 metric tons of CO2 from the $1.6 billion New Generation Gas Gathering (NG3) pipeline project in Louisiana. Houston-based Momentum Midstream is developing NG3, which will collect and treat natural gas produced in Texas and Louisiana and deliver it to Gulf Coast markets.

This is ExxonMobil’s first CCS deal with a natural gas processor and fifth CCS deal agreement overall. To date, ExxonMobil has contracts in place for storage of up to 6.7 metric tons of CO2 per year.

“I’m proud that even more industries are choosing our #CCS solutions to meet their emissions reduction goals,” Ammann wrote on LinkedIn.

ExxonMobil says it operates the largest CO2 pipeline network in the U.S.

“The most fundamental thing we’re focused on is making sure the CO2 is stored safely and securely,” Ammann told Forbes in addressing fears that captured CO2 could seep back into the atmosphere.

ExxonMobil has placed a big bet on the carbon capture market. Photo via exxonmobil.com

Newly Houston-headquartered ExxonMobil acquires carbon capture company in $4.9B deal

M&A Moves

Spring-based energy giant ExxonMobil is making a nearly $5 billion bet on its future in the carbon capture sector.

ExxonMobil announced July 13 that it has agreed to buy Plano-based Denbury, a publicly traded company specializing in carbon capture, utilization, and storage (CCUS), in an all-stock deal valued at $4.9 billion. The deal’s value is based on ExxonMobil’s July 12 closing stock price — $89.45 per share.

Darren Woods, chairman and CEO of ExxonMobil, says the pending acquisition of Denbury “reflects our determination to profitably grow” his company’s low-carbon business unit.

The deal will give ExxonMobil the largest CO2 pipeline network in the U.S. at 1,300 miles, including nearly 925 miles in Texas, Louisiana, and Mississippi, along with 10 onshore carbon sequestration sites.

Dan Ammann, president of ExxonMobil Low Carbon Solutions, says Denbury’s CO2 infrastructure “provides significant opportunities to expand and accelerate ExxonMobil’s low-carbon leadership across our Gulf Coast value chains.”

“Once fully developed and optimized,” Ammann adds, “this combination of assets and capabilities has the potential to profitably reduce emissions by more than 100 million metric tons per year in one of the highest-emitting regions of the U.S.”

ExxonMobil explains that CCUS — when carbon dioxide is captured and stored deep underground instead of being released into the atmosphere — is viewed as critical to meeting net-zero goals. The company forecasts the global market for CCUS will catapult to $4 trillion by 2050. Houston-based consulting firm Rystad Energy predicts total spending on CCUS projects in 2023 will reach $7.4 billion.

In addition to Denbury’s CCUS assets, the deal with ExxonMobil includes Gulf Coast and Rocky Mountain oil and natural gas operations. These assets consist of reserves exceeding the equivalent of 200 million barrels of oil, with 47,000 oil-equivalent barrels per day of current production.

Directors at ExxonMobil and Denbury have unanimously approved the deal, which is expected to close in the fourth quarter of 2023.

Denbury, founded in 1951, posted $1.7 billion in revenue last year, up from 36 percent from 2021.

Chris Kendall, president and CEO of Denbury, launched his oil and gas career at Mobil Oil. Mobil merged with Exxon in 1999 to form the country’s largest oil and gas company, which just made official its headquarters relocation from Irving to Spring.

ExxonMobil generated revenue of nearly $413.7 billion in 2022, making it one of the country’s biggest publicly traded companies.

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Houston cleantech company closes $12M seed round

fresh funding

Houston-based Helix Earth Technologies has closed a $12 million Seed 2 funding round to scale manufacturing of its energy-efficient commercial HVAC add-on technology.

Veriten, a Houston-based energy investment firm, led the round. Rua Ventures, Carnrite Ventures, Skywriter LLC and Textbook Ventures also participated.

Helix Earth—which was founded based on NASA technology, spun out of Rice University and has been incubated at Greentown Labs—is developing high-efficiency retrofit dehumidification systems that aim to reduce the energy consumption of commercial HVAC units. The company reports that its technology can lead to "healthier indoor air, lower energy bills, reduced building maintenance, and more comfortable spaces for building owners and occupants."

"Building owners are dealing with rising energy costs, uncontrolled humidity, and aging infrastructure with no viable, cost-effective path forward. We are in the field today solving these problems for commercial customers, and this capital puts us on an aggressive path to scale,” Rawand Rasheed, Helix Earth co-founder and CEO, said in a news release.

“The strength of this round reinforces our team's conviction that we can transform innovation-starved sectors with transformational solutions that deliver order-of-magnitude improvements to owners and operators, for both their bottom line and the environment,” Rasheed added.

Maynard Holt, Veriten’s founder and CEO, said that the investment firm is tripling its investment in Helix Earth.

"The team has built breakthrough technology with real applicability across multiple industries,” Holt said in the release. “Their first product will have an immediate and measurable impact on our energy system, and they are already pursuing adjacent innovations to help heavy industries operate more efficiently and with less waste. This is a well-rounded team with a proven track record of strong execution and disciplined capital management.”

Helix Earth also closed a $5.6 million seed funding round in 2024, led by Veriten.

Last year, the company secured a $1.2 million Small Business Innovation Research (SBIR) Phase II grant and won in the Smart Cities, Transportation & Sustainability contest at the 2025 SXSW Pitch Showcase. Rasheed was also named to the Forbes 30 Under 30 Energy and Green Tech list for 2025.

SLB and NVIDIA expand partnership to scale AI across energy sector

AI partnership

Houston-based energy technology company SLB has expanded its 18-year tech collaboration with chipmaker NVIDIA to include the development of an “AI factory for energy.”

Through their partnership, SLB and NVIDIA will create AI infrastructure and models built around SLB’s existing digital platforms to help energy companies scale AI for data and operations.

In addition to the development of the “AI factory,” SLB will:

  • Provide modular design services to enhance NVIDIA’s blueprint for building, launching and operating gigawatt-scale AI data centers. In this case, modular design involves manufacturing data center components off-site.
  • Use NVIDIA’s AI infrastructure to improve the processing of large datasets and AI models across SLB’s digital platforms.

Energy companies generate vast amounts of operational data, which can slow down and silo decision-making, SLB says. By combining NVIDIA’s Omniverse libraries and its Nemotron open models with SLB’s digital and AI platforms, the companies aim to more rapidly transform data into actionable insights.

Omniverse libraries are sets of prebuilt 3D elements, such as objects, surfaces and interactive features, that make it easier to construct detailed virtual spaces without having to design everything manually. They’re commonly used for building immersive environments, digital replicas of real-world systems and simulation scenarios.

Nemotron open models are AI models that are freely available to download and modify. Instead of relying on a hosted service, you can run them on your own infrastructure and tailor them to fit specific needs.

Vladimir Troy, vice president of AI infrastructure at NVIDIA, says the energy sector is at the forefront of AI driving a “new industrial revolution.”

“The winners in AI will be companies with the best data, the deepest domain expertise, and the ability to scale,” Demos Pafitis, SLB’s chief technology officer, added. “By collaborating with NVIDIA to advance modular data center construction and harness our domain expertise and digital platforms, we’re enabling the energy industry to deploy AI at scale and transform operational data into smarter decisions.”