Vaulted Deep is planning a North American buildout. Photo via vaulteddeep.com

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.

The financing will support new waste disposal sites for Vaulted Deep and advancements of the company’s AI-enabled site development platform. The platform helps identify locations, navigate permitting and optimize injection operations. When candidates are looking for sites, the platform will pull from regulatory, geology and waste-supply data to assist, which Vaulted Deep says will help streamline the permitting process. After the site is operating, the platform helps control algorithms to maximize safe disposal capacity and monitor the process along the way.

"Waste operators across the country need new options as traditional disposal options become limited,” Julia Reichelstein, CEO and co-founder of Vaulted Deep, said in the release. “This financing lets us take on more projects and invest in the tools that help us evaluate and develop new sites faster. This is a meaningful milestone for Vaulted as we move into the next phase of building infrastructure at a much larger scale."

The deal is supported by Vaulted Deep's long-term waste service and carbon removal purchase contracts. The company says it delivered more than 20,000 tons of carbon removal to buyers in the first half of 2026, which is more than it delivered in all of 2025.

"By facilitating these types of transactions, we connect institutional capital with innovative climate technologies, helping accelerate the deployment of high-integrity carbon removal solutions,” Tyler Manchester, head of voluntary carbon for CFP Energy, added in the release. “It reflects growing investor confidence in these solutions, driven by rising demand from corporate buyers seeking permanent pathways to support net-zero commitments and long-term climate strategies."

Beyond the facility, Vaulted Deep has secured $48 million in equity financing in addition to its $8 million from the XPRIZE Carbon Removal competition, backed by Elon Musk’s charitable organization, The Musk Foundation.

The company's well injection technology is used to store organic waste deep underground in stable geologic formations. In 2025, it inked a 12-year deal with Microsoft to remove up to 4.9 million metric tons of carbon dioxide from the environment.

Houston is tied with Chicago for the second-most Fortune 500 headquarters. Photo via Getty Images

Houston lands 27 Fortune 500 headquarters, led by energy heavyweights

HQ leader

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.

Twenty-six Houston-area companies landed on the latest Fortune 500 list. Photo via Getty Images

Houston earns No. 3 spot among cities with most Fortune 500 headquarters

biggest companies

Houston maintained its No. 3 status this year among U.S. metro areas with the most Fortune 500 headquarters. Fortune magazine tallied 26 Fortune 500 headquarters in the Houston area, behind only the New York City area (62) and the Chicago area (30).

Last year, 23 Houston-area companies landed on the Fortune 500 list. Fortune bases the list on revenue that a public or private company earns during its 2024 budget year.

On the Fortune 500 list for 2025, Spring-based ExxonMobil remained the highest-ranked company based in the Houston area as well as in Texas, sitting at No. 8 nationally. That’s down one spot from its No. 7 perch on the 2024 list. During its 2024 budget year, ExxonMobil reported revenue of $349.6 billion, up from $344.6 billion the previous year.

Here are the rankings and 2024 revenue for the 25 other Houston-area companies that made this year’s Fortune 500:

  • No. 16 Chevron, $202.8 billion
  • No. 28 Phillips 66, $145.5 billion
  • No. 56 Sysco, $78.8 billion
  • No. 75 Conoco Phillips, $56.9 million
  • No. 78 Enterprise Products Partners, $56.2 billion
  • No. 92 Plains GP Holdings, $50 billion
  • No. 143 Hewlett-Packard Enterprise, $30.1 billion
  • No. 153 NRG Energy, $28.1 billion
  • No. 155 Baker Hughes, $27.8 billion
  • No. 159 Occidental Petroleum, $26.9 billion
  • No. 183 EOG Resources, $23.7 billion
  • No. 184 Quanta Services, $23.7 billion
  • No. 194 Halliburton, $23 billion
  • No. 197 Waste Management, $22.1 billion
  • No. 214 Group 1 Automotive, $19.9 billion
  • No. 224 Corebridge Financial, $18.8 billion
  • No. 256 Targa Resources, $16.4 billion
  • No. 275 Cheniere Energy, $15.7 billion
  • No. 289 Kinder Morgan, $15.1 billion
  • No. 345 Westlake Corp., $12.1 billion
  • No. 422 APA, $9.7 billion
  • No. 443 NOV, $8.9 billion
  • No. 450 CenterPoint Energy, $8.6 billion
  • No. 474 Par Pacific Holdings, $8 billion
  • No. 480 KBR Inc., $7.7 billion

Nationally, the top five Fortune 500 companies are:

  • Walmart
  • Amazon
  • UnitedHealth Group
  • Apple
  • CVS Health

“The Fortune 500 is a literal roadmap to the rise and fall of markets, a reliable playbook of the world's most important regions, services, and products, and an indispensable roster of those companies' dynamic leaders,” Anastasia Nyrkovskaya, CEO of Fortune Media, said in a news release.

Among the states, Texas ranks second for the number of Fortune 500 headquarters (54), preceded by California (58) and followed by New York (53).

In partnership with Venture Metals +, Baker Hughes has saved over 125 million pounds of scrap metals from more than 50 of the company's locations around the world. Photo via bakerhughes.com

Houston energy company diverts over 125M pounds of scrap metals from landfills

reduce, reuse, recycle

For three years, Baker Hughes has been working with a full-scale scrap processor partner to divert scrap metal waste from landfills as a part of the company's net-zero commitment by 2050.

In partnership with Venture Metals +, Baker Hughes has saved over 125 million pounds of scrap metals from more than 50 of the company's locations around the world.

Venture Metals + collects, recycles, and manages the full recycling process of scrap materials, providing recycling, reclamation, and investment recovery as a service to industrial, manufacturing, and service facilities.

“The relationship that has been formed between Baker Hughes and Venture Metals is the definition of a true partnership. Over the many years we have collaborated on significant projects and there has been a foundation of trust, transparency and investment on both sides,” Venture Metals’ Vice-Chairman of the Board Mark Chazanow says in a news release. “Together, we have been able to do our part to improve the environment by circular and sustainable recycling while also capturing substantial revenue gain. We look forward to growing the partnership and seeing a bright future ahead together.”

According to the release, Baker Hughes plans to grow the partnership to introduce similar programs at five key locations around the world. Venture Metals+ also set up Baker Hughes with customized containers to help separate titanium, stainless steel, Inconel, and other recyclable metals.

“Reducing our environmental footprint is a critical focus area for our sustainability strategy as we continue to reduce waste, minimize the resources we use and promote circularity,” Allyson Anderson Book, chief sustainability officer at Baker Hughes, adds. “Through partners like Venture Metals +, we are minimizing waste and reusing scrap materials as much as possible for more sustainable operations.”

The number one thing that consumers can remember when it comes to recycling is that thin, pliable plastic should be excluded from standard blue recycling bins. Photos by welcomia/Canva.

Yet another reason to loathe plastic bags

Guest column

As waste-to-energy gains a foothold in the energy transition, trash's more palatable cousin, recycling, sits just close enough for deeper inspection. Plastic, by and large, one of the most loved and loathed petroleum by-products, is often singled out as the most nefarious contributor to our declining climate.

With significant efforts underway to reduce the volume of single-use plastic while reusing or repurposing stronger plastics, let us turn attention to the third action in the timeless mantra–recycling.

Over the last few decades, we have embraced recycling globally, assured in our noble commitment to derive further utility out of items that no longer serve an immediate purpose from our unique perspective.

However, the act of recycling still closely resembles taking out the trash. We place items deemed worthy of secondary use into large, usually plastic, bins for carting far away from the rest of the things that still provide utility to our personal household or place of business.

For the most part, simply believing that there could or should be further utility of an item is criterion enough to warrant placement in the exalted blue bin. The small hit of dopamine elicited from the satisfaction that we are “doing our part” is just strong enough to reinforce the idea that we have also “done enough.”

But according to Vu Nguyen, director of corporate development and innovation, Waste Management, one of Houston’s leading trash, recycling, and environmental services companies, there remains one elusive challenge: the plastic bag.

The plastic bag proves problematic for a multitude of reasons, not least because of its role in ruining literally every.other.recyling.effort.ever. On the whole, we have been blissfully ignorant of the recycling process, and even more so of how much our good intentions to reuse and recycle are thwarting the same process for so many other reusable materials.

“The number one thing that consumers can remember when it comes to recycling is that thin, pliable plastic [like] bags and wrappers should be firmly excluded from standard blue recycling bins,” Nguyen shared at a Houston Tech Rodeo event earlier this spring.

After collection, simple but effective mechanisms sort items delivered to a recycling facility. Individuals pick through discarded materials placed on conveyor belts before the remaining items work their way through heavy magnets that extract useful metals while bursts of air pressure push lightweight items like paper away from heavier items like glass.

Plastic bags, including the lovely little blue ones so many of us like to purchase to fill our quaint non-standard recycling bins, tangle up in these conveyor belts, causing shutdowns to unravel them from materials otherwise well-suited for these sorting efforts. Downtime on the sorting line can get expensive, so much so that many recycling facilities often turn away entire trucks filled with potentially reusable items if even a single plastic bag is discovered inside.

Consider this the start of a public service announcement campaign to raise awareness of that simple fact.

Yasser Brenes, area president – south for Republic Services, echoes this sentiment as he shares a few tips and reminders with EnergyCapitalHTX.

  • Know What to Throw: Educate yourself on what can and cannot go inside your recycling bin. Focus on only recycling rigid plastic containers such as bottles, jugs and tubs, metal food and beverage containers, glass bottles and jars, paper and cardboard. Don’t be a wish-cycler, never throw items in your recycling bin if you are unsure if they can be recycled or not.
  • Empty, Clean, Dry: Recyclables should be rinsed free of residual food and liquid. If recyclables are not empty, clean and dry the residual food or liquid could contaminate other more fragile recyclables, like paper and cardboard, and require them to be thrown away.
  • Don’t Bag It: Recyclables should always be placed loose inside your recycling bin. Flexible plastics, such as grocery bags, wrap and tangle around the sorting equipment and should never be placed in your recycling bin.

That’s not to say that plastic bags and wrappers cannot be recycled at all; on the contrary, they absolutely can. The mechanisms for sorting them from other materials like paper, aluminum, glass, and heavy plastics just aren’t quite mature enough… yet.

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Lindsey Ferrell is a contributing writer to EnergyCapitalHTX and founder of Guerrella & Co.

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European cleantech company breaks ground on Houston manufacturing site

coming soon

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 in a news release 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.

A completion date and operational start date have not yet been announced.

“For the first time in many years, the United States will be able to meet its growing need for sustainable power generation capacity and energy resilience through local manufacturing, supported by the most advanced technology in the world,” David Salvo, CEO of Power Electronics, said in the news release. “Our [40-gigawatt] Houston Campus will help shape the future of energy and AI growth globally."

Once operational, the manufacturing site will feature two buildings of approximately 150,000 square feet and 700,000 square feet. They will house production, logistics, R&D, corporate offices, training and electronic manufacturing departments.

The company says the Houston campus will be its most automated inverter production site by using advanced technologies in production to streamline day-to-day processes. Inverters convert direct current (DC) electricity that is generated by solar panels and batteries to alternating current (AC) electricity used by electrical grids.

Power Electronics' global headquarters is in Valencia, Spain, with U.S. operations in Houston, Tampa, and Gilbert, Arizona. Its North American headquarters is located at its existing North Houston office on East Airtex Drive. Community Impact News reports that the new manufacturing site is located in the Cy-Fair/Jersey Village area.

Power Electronics shared on LinkedIn that the new Houston campus represents its commitment to its American business and will allow it to serve the market with "greater scale, proximity and local expertise." It currently has more than 116 gigawatts installed in the U.S. and is working toward a global goal of 105 gigawatts of annual global production capacity.

Major oil exporters agree to keep production steady in November 2026

Oil News

Seven major oil-exporting countries agreed Sunday to keep production steady in November at a time when the Iran war has driven the price of benchmark Brent crude oil above $100 a barrel.

The so-called OPEC+ subgroup — Saudi Arabia, Russia, Iraq, Kuwait, Kazakhstan, Algeria and Oman — will meet again on November 1 to review conditions in the oil market.

The fighting with Iran, which began with U.S. and Israeli attacks on Feb. 28, has disrupted global oil supplies and driven prices higher.

The group of seven wealthy democracies said Friday that they plan to release 100 million barrels of oil and fuel products in the coming weeks, starting with “substantial” amounts of diesel.

Diesel prices recently hit record highs in the United States, squeezing farmers, truckers and consumers who depend on the fuel.

The G7 promised a “frontloaded substantial release” of diesel within the next 20 days and the rest over four months.

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

cleaner steel

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.

The federal investment came from the U.S. Department of Defense’s Industrial Base Analysis and Sustainment program. The program aims to strengthen and modernize the U.S. Defense Industrial Base, a network that researches, designs, builds, and maintains military weapons, equipment, technology, and services.

The Series A funding will finance construction of Hertha Chalyx, a plant that will be capable of producing 10,000 metric tons of steel-grade and magnet-grade high-purity iron.

Hertha says Chalyx will provide U.S.-made material for manufacturers of rare-earth magnets. Today, China controls more than 90 percent of the global manufacturing of rare-earth magnets.

Rare-earth magnets can be found in fighter jets, smart bombs, submarines, satellites, drones and other military hardware. These magnets are also key components in electric vehicle motors, wind turbines, computer hard drives, smartphones, headphones, cordless tools and an array of other products.

“Every electric vehicle, aerospace platform, radar system, and data center depends on domestic iron and magnet feedstock suppliers,” Laureen Meroueh, founder and CEO of Hertha, said in a press release.

“Hertha Chalyx closes that gap,” she added. “We are building the supply chain this country needs, and we are doing it by providing a domestic cost-competitive option for manufacturers while unlocking safer and cleaner production.”

Hertha says Chalyx, alongside its Pi100 pilot project, will be the first modern-day “iron and steel innovation complex.” The startup expects to break ground on Chalyx this year.

Since its founding in 2022, Hertha has raised more than $150 million from investors.

This spring, Hertha led the manufacturing category on Fast Company’s list of the World’s Most Innovative Companies of 2026.