ExxonMobil and Mitsubishi are still working out details of the arrangement, such as equity participation in the project and use of the low-carbon ammonia. Photo via exxonmobil.com

Spring-based ExxonMobil has teamed up with Japan’s Mitsubishi to potentially produce low-carbon ammonia and nearly carbon-free hydrogen at ExxonMobil’s facility in Baytown.

ExxonMobil and Mitsubishi are still working out details of the arrangement, such as equity participation in the project and use of the low-carbon ammonia.

“We look forward to furthering our leadership position, alongside Mitsubishi Corporation, to advance low-carbon hydrogen and ammonia globally, helping the world achieve a lower emission future,” Dan Ammann, president of ExxonMobil Low Carbon Solutions, says in a news release.

The ammonia would be shipped to Japan for power generation, process heating, and other industrial purposes. In conjunction with this project, Mitsubishi would convert part of a liquified petroleum gas (LPG) terminal into an ammonia terminal. The Japanese conglomerate plans to partner with Japanese petroleum company Idemitsu Kosan for ammonia purchases and a joint equity stake in the Baytown project.

The Baytown project is expected to generate as much as one billion cubic square feet of low-carbon hydrogen per day and more than one million tons of low-carbon ammonia per year.

A financial decision on the project is set for 2025, with the project coming online in 2029.

“We are excited to be closely collaborating with ExxonMobil to develop low-carbon hydrogen and ammonia supply chains that will bridge the United States and Japan,” says Masaru Saito, CEO of Mitsubishi’s Environmental Energy Group. “Together, we will lead this joint initiative to assist in the acceleration of the hard-to-abate sectors’ transition to clean energy.”

Seven energy companies are partnering to produce electric natural gas, a synthetic natural gas produced by combining renewable hydrogen and recycled CO2. Photo via Getty Images

Houston-area energy companies team up for initiative to produce electric natural gas

eyes on e-ng

More than half-a-dozen energy companies — most with a significant presence in Houston — have signed up as founding members of a coalition focusing on the production of electric natural gas.

Founders of the e-NG Coalition are:

  • Engie, whose North American headquarters is in Houston
  • Mitsubishi, which operates a branch office in Houston
  • Osaka Gas, whose U.S. headquarters is in Houston
  • Sempra Infrastructure, which operates its Center of Excellence in Houston
  • TES (Tree Energy Solutions), whose U.S. headquarters is in Houston
  • Tokyo Gas, whose U.S. headquarters is in Houston
  • Toho Gas, a Japanese utility
  • TotalEnergies, whose U.S. headquarters is in Houston

Electric natural gas, also known as e-NG or e-natural gas, is a synthetic natural gas produced by combining renewable hydrogen and recycled CO2.

“The founding members of the coalition believe e-NG can provide a meaningful contribution to the energy transition by accelerating the development of renewable hydrogen,” the coalition says in a news release. “With large industrial capabilities and investment potential, the founding members are committed to the development of e-natural gas projects globally.”

TES spearheaded establishment of the e-NG Coalition.

“Collaboration is paramount to scaling up sustainable energy solutions and driving the energy transition forward. TES took the initiative to sponsor the creation of the e-NG Coalition and work together with leading industrial players to accelerate the development of e-NG,” says Marco Alverà, co-founder and CEO of TES.

Last September, Sempra Industries announced it had teamed up with four Japanese companies — Mitsubishi, Osaka Gas, Toho Gas, and Tokyo Gas — to explore building an e-natural gas project along the Gulf Coast.

The proposed project would generate 130,000 metric tons of e-natural gas per year. The gas would liquified at a terminal in Louisiana and then exported to Japan.

In a news release, the Japanese partners said they envisioned developing “the world’s first large-scale production and international supply chain of e-natural gas.”

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Houston robotics company partners with Marathon Petroleum to scale fleet

robot alliance

Houston- and Boston-based Square Robot Inc. has announced a partnership with downstream and midstream energy giant Marathon Petroleum Corp. (NYSE: MPC).

The partnership comes with an undisclosed amount of funding from Marathon, which Square Robot says will help "shape the design and development" of its submersible robotics platform and scale its fleet for nationwide tank inspections.

“Marathon’s partnership marks a major milestone in our mission to transform industrial tank inspection,” David Lamont, CEO of Square Robot, said in a news release. “They recognize the proven value of our robotic inspections—eliminating confined space entry, reducing the environmental impact, and delivering major cost efficiencies all while keeping tanks on-line and working. We’re excited to work together with such a great company to expand inspection capabilities and accelerate innovation across the industry.”

The company closed a $13 million series B last year. At the time of closing, Square Robot said it would put the funding toward international expansion in Europe and the Middle East.

Square Robot develops autonomous, submersible robots that are used for storage tank inspections and eliminate the need for humans to enter dangerous and toxic environments. Its newest tank inspection robot, known as the SR-3HT, became commercially available and certified to operate at a broader temperature range than previous models in the company's portfolio this fall.

The company was first founded in the Boston area in 2016 and launched its Houston office in 2019.

Eclipse Energy lands Weatherford investment to scale clean hydrogen tech

clean energy collab

Oil and gas giant Weatherford International (NASDAQ: WFRD) has made a capital investment for an undisclosed amount in Eclipse Energy as part of a collaborative partnership aimed at scaling and commercializing Eclipse's clean fuel technology.

According to a release, joint projects from the two Houston-based companies are expected to launch as soon as January 2026. The partnership aims to leverage Weatherford's global operations with Eclipse Energy's pioneering subsurface biotechnology that converts end-of-life oil fields into low-cost, sustainable hydrogen sources.

“We strongly believe the subsurface is the most overlooked climate asset,” Prabhdeep Singh Sekhon, CEO of Eclipse Energy, said in the release. “This partnership demonstrates how traditional oilfield expertise and frontier biotechnology can come together to transform the energy transition. Weatherford’s global reach and deep technical knowledge will accelerate our ability to scale our low-carbon technology rapidly and cost-effectively.”

Eclipse Energy, previously known as Gold H2, completed its first field trial this summer, demonstrating subsurface bio-stimulated hydrogen production. According to the company, its technology could yield up to 250 billion kilograms of low-carbon hydrogen, and it could also extend "beyond hydrogen, laying the foundation for the next generation of subsurface clean energy fuels."

Last month, Eclipse Energy won in the Energy Transition Business category at the 2025 Houston Innovation Awards. The company closed an $8 million series A this year and has plans to raise another round in 2026.