Smart financial tool from oil and gas industry veterans ensures funds are available to seal inactive wells in the future. Image via Shutterstock.

Think back to when your first friend got their driver’s license. Everyone wanted a ride, but when it came time to fill the tank, pay for repairs and maintenance, or – worst case, perform some autobody work to resolve damage incurred in a fender-bender – the driver usually got caught holding the bag.

For the oil and gas industry, the same thing often happens with old wells that have stopped producing at an economic rate. When production is high and prices are favorable, everyone wants a piece of the action. But as soon as a well’s production slows to a crawl or the bottom falls out of the market (again), investing partners scatter like cockroaches into obscurity, leaving the majority owner with the financial and environmental burden to properly seal up the well.

Just over 100 years ago, the Texas Railroad Commission, which serves as the primary governing body for oil and gas wells developed across the state, enacted the first regulation calling for due care when plugging inactive or otherwise deemed useless wells. The policy laid the groundwork for keeping potential contaminants contained to prevent environmental and safety hazards.

Oklahoma followed suit some 15+ years later, subsequently followed by California another dozen years after that. The remaining states have enacted similar laws within just the last 40 years. But that’s not to say that the industry was not properly closing off wellbores after useful life. Nay, it merely highlights the pace at which regulatory actions move across the nation after inception in a single state.

Of particular note, but perhaps not as obvious, is the time lag between Texas’s first policies demanding the costly, albeit necessary, activities to plug and abandon (P&A) a well and the Asset Retirement Obligation (ARO), an accounting treatment introduced in 2001 that ensures companies recognize and retain the financial liability for completing end-of-useful-life requirements.

Unfortunately, ARO is truly just an accounting concept, so if a company becomes insolvent, there is limited chance the investment necessary to properly P&A a well will be available. This does not bode well for the industry, nor the environment, as valuable hydrocarbons are lost from leaking, seeping, and weeping wells across the country.

Let’s not catastrophize the potential environmental damage here, however. Highly conservative estimates made by the EPA in 2022 claim over 2 million potentially orphaned wells produce methane emissions equivalent to approximately 1% of all cars on the road across the United States. No one argues that this is acceptable, but it does put things into perspective, given that approximately 1/3 of global emissions are attributable to light duty and commercial vehicles on the road.

To bolster the industry with confidence the cash investment necessary for P&A activities will be readily available upon asset retirement, one company looked outside of energy for guidance. Embracing a model most typically associated with life insurance, OneNexus Assurance provides contractual certainty to upstream operators that funds will be available to cover the associated end-of-useful-life costs (depending on the benefit amount purchased, of course).

“Our business model provides the oil and gas industry much-needed peace of mind that capital is available when inevitable ARO funding becomes imminent and offers a preferable alternative to trust funds, surety bonds, and sinking funds as a means of prefunding decommissioning liabilities," says Tony Sanchez, founder and CEO of OneNexus, in a recent release.

The OneNexus approach allows the primary operator to collect monthly payments for end-of-useful-life costs long before the well is depleted from other invested partners.

“OneNexus Assurance is a game changer,” continues Sanchez, “It enables responsible parties to pay towards decommissioning funding in today’s dollars at a substantial discount to the ultimate plugging cost, it guarantees that a pre-determined amount decided by the client is secured for the future, and it does away with the need to chase payments later.”

While this solution does not fully resolve the problem of orphaned wells – the aforementioned 2 million (or less) wells no longer producing but not fully sealed off, either – it does at least guarantee that whomever gets caught holding the bag at the end will find some dollars inside.

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Houston hypersonic engine company lands $91M to accelerate production

Clean Speed

Houston-based Venus Aerospace has closed a $91 million Series B round and plans to scale the production of its hypersonic engine.

The round was led by Houston-based Mercury Fund with participation from Lockheed Martin Ventures, MESH, PEAK6, Draper Associates, Starboard Star Venture Capital, Green Sands Equity and other investors, according to a news release.

The investment comes about a year after Venus completed the first U.S. flight test of its high-thrust rotating detonation rocket engine (RDRE). The engine is expected to enable vehicles to travel four to six times the speed of sound from a conventional runway and is about 15 percent more efficient than traditional alternatives, according to the company.

Venus Aerospace says the latest round of funding will allow it to move the RDRE from demonstration to deployment and meet customer requirements for the near-term defense and space industries. The company says that the reusable RDRE is designed with a "common propulsion architecture" that can work for multiple industries and mission types.

“This financing marks an important step in moving Venus from breakthrough demonstration to scaled capability,” Sassie Duggleby, co-founder and CEO, said in the news release. “Our customers need propulsion systems that go farther, can be produced reliably and are built on supply chains they can trust. We are advancing that capability with American engineering and manufacturing talent to strengthen U.S. defense, expand space access and support the future of high-speed flight.”

Venus Aerospace raised a $20 million Series A in 2022, led by Wyoming-based Prime Movers Lab. At the time, the company said it would put the funding toward three main technologies: a next-generation rocket engine, aircraft shape and leading-edge cooling system.

The company also picked up an investment from Lockheed Martin Ventures, the investment arm of aerospace and defense contractor Lockheed Martin, in November 2025—in addition to funding from other investors over the years.

“Since our initial investment, Venus has progressed very quickly in its technology development," Chris Moran, vice president and general manager of Lockheed Martin Ventures, added in the release. "Our reinvestment in Venus recognizes Venus’ accomplishments to date and focus on speed to manufacture, cost management and reduction of supply chain constraints. Venus is working effectively to position its propulsion system for the production scale required by defense programs.”

"Venus is exactly the kind of company Houston capital should be backing," Blair Garrou, co-founder and managing partner at Mercury Fund, added in the release. "It combines multiple frontier technologies, domestic manufacturing and clear commercial and national security relevance. We believe this team is positioned to lead an important new chapter in defense and space, and we are proud to support a company building breakthrough technology here in Texas."

Venus Aerospace and Houston clean tech startup Vaulted Deep were also named to the World Economic Forum's Technology Pioneers community earlier this summer.

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This article first appeared on InnovationMap.com.

14 climatech startups join Greentown Houston in first half of 2026

green team

Climatech incubator Greentown Labs reports that 14 startups have joined its Houston community so far this year.

The companies are among 30 new startups to have joined Greentown Houston and Greentown Boston in 2026. Four of the companies are headquartered in Houston.

The startups are working on a range of "hydrogen-powered heavy-duty transport to AI-driven grid interconnection," according to Greentown.

The local startups that joined Greentown Houston include:

  • Houston-based Focis AI, which transforms industrial laser scans into structured asset intelligence to automatically identify, classify and map components in refineries and plants
  • Houston-based Iron Lattice, which develops next-generation memory technology for AI and high-performance computing that improves energy efficiency, endurance and scalability while remaining compatible with existing semiconductor manufacturing
  • Houston-based Orbital Arc, which is developing a new ion engine designed to improve the efficiency and scalability of spacecraft propulsion from low Earth orbit to deep space
  • Houston-based Sustain Energy LLC, which delivers cleaner, lower-cost fuel to industrial customers in pipeline-absent, underserved markets, cutting their energy costs and emissions with no infrastructure investment on their end

Other startups from around the world joined the Houston incubator in the same time period, including:

  • Ankara-based AIS Field, which develops robotic, AI-assisted non-destructive inspection systems, including submersible tank and boiler crawlers
  • San Francisco-based Armada AI, which builds rapidly deployable modular and edge data centers that run on local, stranded, or renewable power
  • San Francisco-based Armeta, which turns complex engineering drawings and legacy documentation into structured, usable data
  • Pittsburgh-based Atlas Robotics, which develops a Physical AI platform that powers autonomous material-handling robots and AI-guided forklifts
  • Ghana-based Cocoa Potash, which transforms high-emissions agricultural waste from cocoa, coconut, and palm-nut into organic potash, fertilizer and renewable energy
  • Israel-based Criaterra, which produces low-carbon, cement-free building materials
  • Italy-based ETAK, which manufactures modular reactors that convert solid waste into clean syngas
  • Kenya-based FelixFusion, which uses its Felix platform to model every grid connection point, including capacity, upgrade costs, and constraints
  • San Diego-based Gemini Energy, which builds next-generation fuel cells for data-center power
  • Tokyo-based Hibot, which develops robotic systems for inspecting and maintaining infrastructure in hazardous, hard-to-access environments
  • Austin-based Sheetak, which designs and manufactures thermoelectric coolers, generators, and assemblies for solid-state cooling and energy harvesting
  • The Netherlands-based ToPerform, which makes AI-powered, non-intrusive fouling sensors that monitor pipelines around the clock and predict the optimal cleaning time

Another 16 startups joined Greentown's Boston incubator. See the full list of new members here.

More than 100 startups joined Greentown last year, according to an end-of-year reflection shared by Greentown CEO Georgina Campbell Flatter. Read more about them here.

Houston cleantech startup secures $134M to develop ‘superhot’ geothermal plant

deep round

Houston-based Quaise Energy, a producer of utility-scale geothermal power, raised $134 million in a Series B round to advance its “superhot” geothermal power plant.

Climate-focused San Francisco-based investment firm Prelude Ventures led the round, with participation from JERA Co., Japan’s largest power generation company, and Idemitsu Kosan, one of Japan’s largest energy companies. Nearly all existing investors, including cleantech-focused investment firm Safar Partners, participated in the round.

“We have backed Quaise since the beginning because we believed accessing superhot rock would unlock geothermal energy at a scale the world has never seen,” Mark Cupta, managing director at Prelude Ventures, said in a press release.

The startup expects more equity and debt deals to close “imminently.” Quaise has raised $230 million since its founding in 2018.

Quaise says some of the fresh funding will go toward building the world’s first commercial-scale “superhot” geothermal power plant —Project Obsidian in central Oregon. In addition, Quaise is earmarking money for continued development and commercialization of its millimeter-wave drilling system toward depths exceeding 5 kilometers (about 16,400 feet).

Quaise uses a millimeter-wave drilling system developed at the Massachusetts Institute of Technology to remove rock at depths and temperatures that aren’t economically feasible with conventional drilling. With this technology, Quaise can reach rock at temperatures of around 570 degrees to 930 degrees in most places worldwide, enabling construction of geothermal systems that rival fossil fuels and nuclear energy in power density and that rival renewables in cost.

“Our ambition is to power civilization with Earth's most compelling energy source. This round takes us from field-proven technology to first commercial revenues,” Carlos Araque, co-founder, president and CEO of Quaise, added in the release.

Quaise has demonstrated the capability of its millimeter-wave drilling system at its Central Texas test site, drilling more than about 330 feet through granite in 2025—the first time the technology penetrated basement rock at full scale in the field. The company is approaching a depth of about 3,300 feet at the same site.

Construction of Project Obsidian is underway at Oregon’s Deschutes National Forest. The project, which has the potential to generate gigawatt-scale power, is slated to deliver electricity to the Pacific Northwest grid by 2030.