Houston robotics company partners with Marathon Petroleum to scale fleet

robot alliance

Square Robot has landed funding and a new partnership with Marathon Petroleum. Photo courtesy of Square Robot

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.

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These Houston energy companies have made it on the list of top employers. Photo via Getty Images

Houston-based energy companies hailed best places to work by U.S. News

Top cos.

More than a dozen Houston-based companies are sharing the spotlight in U.S. News and World Report's collection of the "Best Companies to Work For" in 2024-2025, including several of the Bayou City’s energy companies.

The annual report examines publicly-traded companies around the world to determine the best employers based on six metrics including work-life balance and flexibility; quality of pay and benefits; job and company stability; career opportunities and professional development; and more. The companies were not ranked, but included based on reader surveys and publicly available data about each workplace.

New for the 2024-2025 report, U.S. News analyzed 549 companies across 29 different lists, including the overall best companies list — which includes the best 300 companies across the U.S., the United Kingdom, Ireland, Switzerland, Luxembourg, and Bermuda — 24 industry-specific lists, and four regional lists.

There were 16 total companies based around Houston that made the lists, with the majority being based in the city, while one each were located in Spring and The Woodlands.

Independent energy company Marathon Oil was the top-rated Houston energy employer, with nearly 1,700 employees, an annual revenue stream of $6.38 billion, and a $15.4 billion market cap. The company was specifically highlighted with a "Top Quality of Pay" label, but also boasts high ratings for its employees' work-life balance, job stability, and belongingness.

In addition to being included in the overall "Best Companies" list, Marathon Oil earned recognition in the industry-specific "Best in Energy" list and the "Best Companies in the South" list.

A second Houston-based energy company earning a spot among the top employers is Occidental (also known as Oxy). The petroleum corporation, which has been in operation since 1920, has nearly 12,600 employees and brings in $27,43 billion in revenue every year.

According to U.S. News, Occidental offers many financial, health and wellness, and workplace benefits including 401k matching, tuition assistance, an employee assistance program, flexible work arrangements, and much more. The company was also given a "Top Quality of Pay" designation.

Occidental appeared in U.S. News' "Best in Mining and Raw Materials," the overall "Best Companies," and "Best Companies in the South" lists.

The other top energy employers include:

Southwestern Energy Company, Spring – Best in Energy; Best Companies (overall); Best Companies in the South
ConocoPhillips – Best in Energy, Best Companies in the South
Cheniere – Best in Energy
EOG Resources – Best in Energy
Murphy Oil Corporation – Best in Energy

"Prospective and current employees understand the significant impact their employer has on their quality of life," said Carly Chase, vice president of careers at U.S. News and World Report, in a release. "Whether a new grad seeking a company to launch their career, an established professional looking for a change or an HR professional researching the strengths of their company and others, Best Companies to Work For provides a central space to see which companies are meeting their employees' needs best.
The full list of the best companies to work for can be found at usnews.com

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This article originally ran on CultureMap.

The deal to combine the two Houston-headquartered companies is valued at $22.5 billion when including $5.4 billion in debt. Photo via conocophillips.com

ConocoPhillips buying Marathon Oil for $17.B in all-stock deal as energy prices rise

M&A moves

ConocoPhillips is buying Marathon Oil in an all-stock deal valued at approximately $17.1 billion as energy prices rise and big oil companies reap massive profits.

The deal to combine the two Houston-headquartered companies is valued at $22.5 billion when including $5.4 billion in debt.

Crude prices have jumped more than 12% this year and the cost for a barrel rose above $80 this week. Oil majors put up record profits after Russia's invasion of Ukraine in 2022 and while those numbers have slipped, there has been a surge in mergers between energy companies flush with cash.

Chevron said last year that it was buying Hess in a $53 billion acquisition, though that deal faces headwinds. The company warned the buyout may be in jeopardy because it will require the approval of Exxon Mobil and a Chinese national oil company, which both hold rights to development of an oil field off the coast of the South American nation Guyana where Hess is a big player.

In July of last year, Exxon Mobil said that it would pay $4.9 billion for Denbury Resources, an oil and gas producer that has entered the business of capturing and storing carbon and stands to benefit from changes in U.S. climate policy. Three months later, Exxon announced the proposed acquisition of shale operator Pioneer Natural Resources for $60 billion.

All of the proposed acquisitions could face pushback from the U.S. which, under the Biden administration, has stepped up antitrust reviews for energy companies and other sectors as well, such as tech.

Federal Trade Commission, which enforces federal antitrust law, asked for additional information from Exxon and Pioneer about their proposed deal. The request is a step the agency takes when reviewing whether a merger could be anticompetitive under U.S. law. Pioneer disclosed the request in a filing in January.

As part of the ConocoPhillips transaction, Marathon Oil shareholders will receive 0.2550 shares of ConocoPhillips common stock for each share of Marathon Oil common stock that they own, the companies said Wednesday.

ConocoPhillips said Wednesday that the transaction will add highly desired acreage to its existing U.S. onshore portfolio.

“This acquisition of Marathon Oil further deepens our portfolio and fits within our financial framework, adding high-quality, low cost of supply inventory adjacent to our leading U.S. unconventional position,” ConocoPhillips Chairman and CEO Ryan Lance said in a prepared statement.

The deal is expected to close in the fourth quarter. It still needs approval from Marathon Oil stockholders.

Separate from the transaction, ConocoPhillips said that it anticipates raising its ordinary dividend by 34% to 78 cents per share starting in the fourth quarter. The company said that once the Marathon Oil deal closes and assuming recent commodity prices, ConocoPhillips plans to buy back more than $7 billion in shares in the first full year. It plans to repurchase more than $20 billion in shares in the first three years.

Shares of ConocoPhillips declined 3.3% before the market open, while Marathon Oil Corp.'s stock rose more than 7%.

ALLY Energy's annual GRIT Awards is still accepting applications — but not for long.

Deadline approaches Houston company's energy awards

A Houston company that advocates for equity and inclusion in the evolving energy sector is closing it nominations for its annual awards program on August 12.

ALLY Energy's 2023 GRIT Awards — honoring companies, nonprofits, and individuals with growth, resilience, innovation, and talent — is slated for October 26. For now, ALLY is looking for the best in the biz to honor at the program.

"We honor the energy industry’s brightest and grittiest talent who contribute to their companies, the energy industry, and their communities," reads the website. "Our awards program recognizes individuals, students, and for-profit and nonprofit organizations that have demonstrated (GRIT) growth, resilience, innovation, and talent with a focus on driving a (JEDI) just, equitable, diverse, and inclusive culture. Best Energy Workplaces℠ give recognition to outstanding energy and climate technology employers."

The nomination categories are as follows:

The Lifetime Achievement Award
The Professional Award
The Executive Award
The Entrepreneur Award
The ALLY JEDI Award
The Gritty Girl
The ESG and Climate Champion
The Best Affinity Group, Employee Resource Group, or Business Resource Group Award
The Best Energy Team Award
The Best Energy Workplaces Award

The full description and requirements for each category is detailed online.

Once applications close on August 12 at midnight, ALLY's team will decide the finalists and reveal them before September 15.

Last year's honorees included representatives from many Houston energy companies, including Baker Hughes, ExxonMobil, Halliburton, Marathon Oil, Rice University, Saudi Aramco, Shell, the University of Houston, Syzygy Plasmonics, and Wood Mackenzie.

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Rice University spinouts named among 50 top cleantech companies to watch

green team

Two Rice University spinouts, Coflux Purification and DexMat, appear on a new list of the world’s 50 cleantech companies to watch.

Cleantech Group’s 2026 Cleantech 50 to Watch list recognizes early-stage companies “creating groundbreaking solutions to address some of the world’s most pressing environmental and sustainability challenges.”

Cleantech Group, a market research, consulting, and events company, selects the 50 honorees based on insights from analysts and early-stage innovators, along with public nominations.

Destroying “forever chemicals”

Coflux, founded in 2024, offers an onsite treatment system that captures and destroys manufactured “forever chemicals”—per- and polyfluoroalkyl substances—in water and wastewater. It’s a member of Greentown Houston.

Alec Ajnsztajn, CEO; Jeremy Daum, chief technology officer; and Dana Vazquez, chief commercial officer, co-founded Coflux. Ajnsztajn and Daum earned doctoral degrees from Rice, and Vazquez earned an MBA from the university.

Coflux spun out of Rice labs directed by professors Rafael Verduzco and Pulickel Ajayan.

Last year, Coflux received a $175,000 grant from the U.S. Food and Drug Administration’s National Institute of Food and Agriculture. The startup has also raised more than $500,000 in non-dilutive funding, including $80,000 awarded in 2024 by Rice’s One Small Step Grant program.

Promoting an alternative to copper

DexMat, founded in 2015, produces carbon nanotube products such as fibers, yarns, cables, and fabric. The company’s products address demand for materials that can reduce carbon emissions, according to CB Insights.

Its main product, Galvorn, is a copper alternative made of carbon nanotube fibers. CB Insights says Galvorn is engineered to be lighter and stronger than traditional conductive materials like carbon and steel. It’s used in industries such as energy, aerospace, defense, automotive, consumer electronics, and health care.

DexMat emerged from Matteo Pasquali’s Carbon Lab at Rice. Pasquali, co-founder of DexMat, co-invented the company’s technology with the late Nobel Prize-winning chemist Rick Smalley. Smalley was a professor of chemistry, physics, and astronomy at Rice.

Pasquali is a professor of chemical and biomolecular engineering, chemistry, materials science, and nanoengineering at Rice. He co-founded DexMat with Rice graduate Dmitri Tsentalovich, the company’s director of product innovation.

Earlier this year, DexMat raised $5 million in seed funding from Non Sibi Ventures, Governance Partners, Tailwind Futures, BetterWay, Capital Factory, and other investors. The company also secured $3 million in non-dilutive funding.

In 2023, DexMat raised $3 million in a pre-seed round led by Shell Ventures.

Stardust Power, Power Electronics expand to Houston and more top energy news

Trending News

Editor's note: October brings big updates for the energy transition sector, with two companies expanding to Houston and two more announcing major funding. Here are the five most-read stories published on EnergyCapital from September 30-October 15, 2026:

Lithium refiner expands into Houston with new Energy Corridor office

Battery-grade lithium carbonate manufacturer Stardust Power has expanded into Houston’s Energy Corridor, the company tells EnergyCapitalHTX. The company’s new office will serve as a project execution hub to support operations and planning for the company’s forthcoming lithium refinery in Muskogee, Oklahoma. The Greenwich, Connecticut-based, publicly traded company says the facility will be one of the largest lithium refining operations in the United States. The refinery is expected to have production capacity of up to 50,000 metric tons per year and seeks to address the critical shortage of U.S. lithium refining capacity. Continue reading.

Houston geothermal company picks Nevada site for commercial-scale project

Sage Geosystems, a Houston-based developer of geothermal power systems, has chosen a site in Nevada for its commercial-scale Project Vector facility. The company’s two-well enhanced geothermal system (EGS) will deliver around-the-clock geothermal heat to Ormat Technologies’ Blue Mountain geothermal power plant in Winnemucca, Nevada. The startup expects to begin drilling the first well later this year, with the first electricity to be generated in 2027 and full-scale production to start in 2028. Continue reading.

Houston carbon removal company secures $35M in financing

Houston-based Vaulted Deep, a waste management and carbon removal company, has announced a major $35 million debt facility from Italian investment bank Mediobanca to support its national expansion. U.K.-based market energy solutions CFP Energy arranged the deal, which is “the largest publicly disclosed U.S. commercial debt deal in durable carbon removal to be secured by long-term purchase contracts,” according to a news release from the companies. Continue reading.

Hertha Metals raises $133M Series A round, plans high-purity iron plant

Conroe-based Hertha Metals has closed a $133.65 million Series A round that includes a $65 million equity investment from the Pentagon. The startup uses a one-step process to convert iron into molten steel or high-purity iron. Khosla Ventures and Doerr Capital co-led the round, with participation from CEV, Pear Ventures, Gates Frontier, Niterra SUISO no MORI Fund, Toyota Ventures, and Siemens Financial Services. Continue reading.

European cleantech company breaks ground on Houston manufacturing site

Spanish renewable energy company Power Electronics broke ground on its new 53-acre Houston campus on Sept. 24. The new site is expected to create over 400 local jobs and deliver 40 gigawatts of production capacity per year. The company said that the campus is expected to be the largest manufacturing site for power conversion systems in the U.S. Power Electronics specializes in solar, energy storage, data centers and electrification technologies. Continue reading.

TotalEnergies expands solar joint venture with $1.2B portfolio in Texas, Ohio

solar expansion

TotalEnergies, a French company whose U.S. headquarters is in Houston, announced this month that it is expanding its renewable energy joint venture with New York-based investment firm KKR by adding 700 megawatts of utility-scale solar projects.

The deal will add three utility-scale solar assets in Texas and Ohio, which are expected to reach commercial operation by Q1 2027, according to a news release from the company. The portfolio is valued at $1.2 billion.

The 50/50 joint venture between TotalEnergies and KKR currently holds 1.4 gigawatts of renewable energy and will grow to 2.1 gigawatts.

The new deal is expected to close this year. Once completed, TotalEnergies will operate the assets. The electricity generated from the solar projects will be sold to third parties, the company reports.

The companies originally formed the joint venture about a year ago when TotalEnergies sold KKR a 50 percent stake in a North American solar portfolio valued at $1.25 billion. The deal originally included six utility-scale solar assets, primarily located in the U.S.

“TotalEnergies is a renewable energy industry leader globally, and we are thrilled to establish this joint venture with the TotalEnergies team to support their renewables business," Cecilio Velasco, managing director KKR, said in a release last year. “We have long been investors in renewables through our infrastructure platform, having committed more than $23 billion to date in energy transition investments. TotalEnergies’ North American solar portfolio is a great fit for us, representing high-quality renewable energy assets with long term contracts.”

TotalEnergies reports that by June 2026 it held more than 37 gigawatts of gross renewable power generation capacity. It aims to achieve over 100 terawatt-hours of net electricity production by 2030.

The company signed a major power purchase agreement with Google earlier this year. Through the deal, TotalEnergies will supply the tech giant with 1 gigawatt of solar power for its data centers in Texas over a 15-year span.

However, the company also recently redirected nearly $1 billion in capital away from wind energy projects and "decided to renounce offshore wind development in the United States." Read more here.

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