A proposed Environmental Protection Agency rule intended to encourage industry to adopt best practices that reduce emissions of methane and thereby avoid paying. Photo via Canva

Oil and natural gas companies for the first time would have to pay a fee for methane emissions that exceed certain levels under a rule proposed Friday by the Biden administration.

The proposed Environmental Protection Agency rule follows through on a directive from Congress included in the 2022 climate law. The new fee is intended to encourage industry to adopt best practices that reduce emissions of methane and thereby avoid paying.

Methane is a climate “super pollutant” that is more potent in the short term than carbon dioxide and is responsible for about one-third of greenhouse gas emissions. The oil and natural gas sector is the largest industrial source of methane emissions in the United States, and advocates say reduction of methane emissions is an important way to slow climate change.

Excess methane produced this year would result in a fee of $900 per ton, with fees rising to $1,500 per ton by 2026.

EPA Administrator Michael Regan said the proposed fee would work in tandem with a final rule on methane emissions EPA announced last month. The fee, formally known as the Methane Emissions Reduction Program, will encourage early deployment of available technologies to reduce methane emissions and other harmful air pollutants before the new standards take effect, he said.

The rule announced in December includes a two-year phase-in period for companies to eliminate routine flaring of natural gas from new oil wells.

“EPA is delivering on a comprehensive strategy to reduce wasteful methane emissions that endanger communities and fuel the climate crisis,” Regan said in a statement. When finalized later this year, the proposed methane fee will set technology standards that will “incentivize industry innovation'' and spur action to reduce pollution, he said.

Leading oil and gas companies already meet or exceed performance levels set by Congress under the climate law, meaning they will not have to pay the proposed fee, Regan and other officials said.

Sen. Tom Carper, chairman of the Senate Environment and Public Works Committee, said he was pleased the administration was moving forward with the methane fee as directed by Congress.

“We know methane is over 80 times more potent than carbon dioxide at trapping heat in our atmosphere in the short term,'' said Carper, D-Del. He said the program "will incentivize producers to cut wasteful and excessive methane emissions during oil and gas production.”

New Jersey Rep. Frank Pallone, the top Democrat on the House Energy and Commerce Committee, said oil and gas companies have long calculated that it's cheaper to waste methane through flaring and other techniques than to make necessary upgrades to prevent leaks.

“Wasted methane never makes its way to consumers, but they are nevertheless stuck with the bill,” Pallone said. The proposed methane fee “will ensure consumers no longer pay for wasted energy or the harm its emissions can cause.''

Republicans call the methane fee a tax that could raise the price of natural gas. “This proposal means increased costs for employers and higher energy bills for millions of Americans,” said Sen. Shelley Moore Capito, R-West Virginia.

The American Petroleum Institute, the oil and gas industry's largest lobbying group, slammed the proposal Friday and called for Congress to repeal it.

“As the world looks to U.S. energy producers to provide stability in an increasingly unstable world, this punitive tax increase is a serious misstep that undermines America’s energy advantage,'' said Dustin Meyer, API's senior vice president of policy, economics and regulatory affairs.

While the group supports “smart” federal methane regulation, the EPA proposal “creates an incoherent, confusing regulatory regime that will only stifle innovation and undermine our ability to meet rising energy demand,'' Meyer said. “We look forward to working with Congress to repeal the IRA’s misguided new tax on American energy.”

Fred Krupp, president of the Environmental Defense Fund, called the proposed fee "common sense,'' adding that oil and gas companies should be held accountable for methane pollution, a primary source of global warming.

In a related development, EPA said it is working with industry and others to improve how methane emissions are reported, citing numerous studies showing that and oil and gas companies have significantly underreported their methane emissions to the EPA under the agency's Greenhouse Gas Reporting Program.

The climate law, formally known as the Inflation Reduction Act, established a waste-emissions charge for methane from oil and gas facilities that report emissions of more than 25,000 metric tons of carbon dioxide equivalent per year to the EPA. The proposal announced Friday sets out details of how the fee will be implemented, including how exemptions will be applied.

The agency said it expects that over time, fewer oil and gas sites will be charged as they reduce their emissions in compliance with the rule.

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Texas City ammonia plant acquired by Yara in $1.3 billion deal

Ammonia Acquisition

Yara North America, a subsidiary of Norwegian fertilizer and ammonia producer Yara International, has agreed to buy an ammonia production plant in Texas City for $1.3 billion.

The seller is GCA Holdings, an affiliate of Texas City-based chemical manufacturer Gulf Coast Ammonia, which is owned by private equity firms Lotus Infrastructure Partners and MB Energy.

The Texas City plant, with an eventual annual capacity of 1.3 million metric tons, is expected to start full production by the end of this year. Yara says the ammonia produced by the plant will serve its own fertilizer production system and its key customers.

During a recent call with analysts and investors, Magnus Ankarstrand, executive vice president and CFO of Yara International, said the plant holds the potential to become one of the company’s most profitable plants. The $1.3 billion purchase price, he added, “is a very attractive entry ticket to ammonia production in the U.S. at a very attractive cost.”

The Texas City plant will add to Yara’s holdings in the Lone Star State, as Yara is the majority owner of an ammonia, hydrogen and nitrogen production plant in Freeport.

Construction of the ammonia plant began in 2020, but technical and infrastructure issues delayed the project. On its website, Gulf Coast Ammonia says the plant represented a $600 million investment.

“Gulf Coast Ammonia is a world-class asset that required disciplined execution across development, financing, construction, and commercial structuring,” Philipp Pletka, managing director of Lotus Infrastructure Partners, says in a news release.

Trexlertown, Pennsylvania-based Air Products, which owns and operates the country’s largest hydrogen pipeline network, will continue to supply hydrogen and nitrogen for the plant under a long-term deal with Yara, according to the release.

However, the news comes two days after Yara International announced that it would no longer be purchasing ammonia assets in the Louisiana Clean Energy Complex (LCEC) from Air Products. In a separate release, Yara said it planned to reallocate funds toward "alternative mature U.S. ammonia investment opportunities with more competitive returns."

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.