Halliburton Labs has announced its inaugural cohort of energy tech companies. Photo courtesy of Halliburton

Halliburton's new in-house incubator program that was announced last year has named three new energy tech startups that are moving in.

Halliburton Labs, which originally launched last summer, was established to promote innovation amidst the energy transition. Member startups will have access to the Halliburton facilities, the company's experts, and its network, and will be located in the company's North Houston headquarters.

"We are excited to welcome a strong group of companies who have demonstrated promising innovation and are working to solve important clean energy challenges," says Dale Winger, managing director of Halliburton Labs, in a news release. "We look forward to collaborating with these companies and providing world-class industrial capabilities and expertise to help them achieve further scale."

Three energy tech startups will join Houston-based Nanotech Inc., the first Halliburton Labs startup in the program. Here are the three selected companies:

Enexor BioEnergy

Tennessee-based Enexor BioEnergy is working to address the world's organic and plastic waste problems. The company has developed a patented bioenergy system that can convert almost any organic, plastic, or biomass waste in any combination, into affordable, renewable power and thermal energy.

"We are seeing tremendous inbound customer demand for Enexor's renewable energy solution from across the world," says Lee Jestings, founder and CEO of Enexor BioEnergy, in the release. "We are honored to join Halliburton Labs. Their broad global network and deep manufacturing expertise will assist Enexor in meeting its significant worldwide demand while making a significantly positive environmental impact. This is a major step forward in our worldwide launch."

Momentum Technologies

Dallas-based Momentum Technologies has created an innovative way to recycle lithium battery by working with recyclers and manufacturers to recover critical materials from waste for reuse. The company was formed through a partnership with the U.S. Department of Energy, and Momentum's patented MSX technology has the ability to recover pure critical materials from spent lithium batteries, rare earth permanent magnets and other valuable waste products.

"Halliburton Labs is the ideal environment to scale our cutting-edge lithium battery recycling technology. We are excited to tap into Halliburton's Labs engineering and supply chain expertise and global business network to accelerate Momentum to the forefront," says Preston Bryant, CEO of Momentum Technologies, in the release.

OCO Inc.

Based in Oregon, OCO Inc.'s technology can transform carbon dioxide, water, and zero carbon electricity into a hydrogen-rich platform chemical that can be used to make a wide variety of zero-carbon chemicals, materials, and fuels. OCO's process is highly carbon negative and much less expensive than existing fossil-based processes and feedstocks.

"The valuable industrial expertise and network of Halliburton Labs will support our build, deployment, and demonstration of a full-size commercial grade system, the next step on our commercialization journey towards an industrial scale plant," says Todd Brix, founder and CEO of OCO Inc., in the release.

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Houston brain health co. secures $6.5M for rare disease study

neuro funding

Houston-based Goldenrod Therapeutics, part of Fannin Partners' portfolio, has announced the initial close of a $6.5 million series seed preferred stock round.

The round was led by Ataxia Ventures and an affiliate of Fannin, according to a news release.

Goldenrod Therapeutics plans to use the funding to support manufacturing, formulation optimization, IND-enabling studies and a Phase I study of its drug to treat brain inflammation, known as 11h.

The study will consider how 11h, which blocks the enzyme PDE4, could treat Friedreich’s ataxia (FA), a rare genetic disease that affects movement, speech and balance. To date, other PDE4 inhibitors have proven to regulate neuroinflammation and neuronal signaling, but have had adverse gastrointestinal side effects or have not reached enough of the central nervous system, according to Goldenrod.

The company says its 11h is expected to have "broad applicability" with limited emetric side effects.

“Our 11h program is a next-generation, orally bioavailable, brain-penetrant PDE4 inhibitor, where researchers overcame longstanding limitations associated with earlier PDE4 inhibitors," Dr. Dev Chatterjee, CEO of Goldenrod, said in the news release. "We believe this creates the potential for a best-in-class therapy for Friedreich’s Ataxia and a potential foundation for development across multiple neurodegenerative and neuroinflammatory disorders.”

11h was first developed at the University of Nebraska Medical Center (UNeMed). Houston-based Fannin Partners in-licensed the product 2020 and landed SBIR Phase I funding to support its initial development for opioid use disorder soon after.

Goldenrod has also received funding to study 11h's effectiveness for multiple sclerosis, methamphetamine addiction and cocaine addiction.

Goldenrod says it is developing 11h to target a variety of neurological and inflammatory conditions, including Alzheimer's disease, multiple sclerosis, ALS, substance use disorders, Batten disease, pain and traumatic brain injury.

27 Houston companies make Fortune 500 for 2026, led by energy giants

Houston HQs

Editor's note: This article has been updated to correct the number of companies based in the Dallas-Fort Worth area.

Houston is a giant among U.S. hubs for corporate headquarters.

The 2026 Fortune 500 lists 27 companies based in the Houston area, with many energy companies claiming top spots. Houston ties with Chicago for the second-most Fortune 500 headquarters, preceded only by New York City (53). Dallas-Fort Worth is home to 24 Fortune 500 headquarters.

Texas leads the nation for Fortune 500 headquarters (57), with California in the No. 2 spot and New York at No. 3.

“Texas is the undisputed headquarters of headquarters,” Gov. Greg Abbott said in a news release. “The world’s leading businesses invest with confidence in Texas because of our welcoming business climate, predictable regulatory environment, and skilled and growing workforce. People and businesses are choosing Texas because Texas works.”

The 2026 Fortune 500 ranks the largest U.S. corporations based on revenue in fiscal year 2025.

Here’s a rundown of the 27 Fortune 500 companies based in the Houston area.

  • No. 9 ExxonMobil
  • No. 21 Chevron
  • No. 29 Phillips 66
  • No.55 Sysco
  • No. 75 ConocoPhillips
  • No. 89 Enterprise Products Partners
  • No. 103 Plains GP Holdings
  • No. 133 Hewlett Packard Enterprise
  • No. 149 NRG Energy
  • No. 157 Quanta Services
  • No. 164 Baker Hughes
  • No. 173 Occidental Petroleum
  • No. 179 Waste Management
  • No. 201 EOG Resources
  • No. 204 Group 1 Automotive
  • No. 207 Halliburton
  • No. 223 Cheniere Energy
  • No. 236 Corebridge Financial
  • No. 262 Targa Resources
  • No. 266 Kinder Morgan
  • No. 388 Westlake
  • No. 435 CenterPoint Energy
  • No. 438 APA
  • No. 440 Comfort Systems USA
  • No. 455 NOV
  • No. 488 KBR
  • No. 496 Coterra Energy. Oklahoma City, Oklahoma-based Devon Energy and Houston-based Coterra Energy merged in early May, with the combined company retaining the Devon Energy name and the Houston headquarters.

The Greater Houston Partnership notes the Houston area soon will welcome its 28th Fortune 500 company. Expand Energy (formerly Chesapeake Energy), appearing at No. 362 on the 2026 list, says it’s moving its headquarters from Oklahoma City to Spring this year.

As the natural gas producer prepares to relocate to Texas, it’s hunting for a new leader. Nick Dell’Osso stepped down as president and CEO earlier this year. Board Chairman Michael Wichterich is interim president and CEO.

Dell’Osso became president and CEO of Oklahoma City-based Gulfport Energy effective May 28.

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This article first appeared on EnergyCapitalHTX.com.