At the annual, SUPER DUG Conference & Exhibition 2024 in Fort Worth last week, Texas energy executives weighed in on the progress of the energy transition. Photo by Lindsey Ferrell

Woven in between reflections on the most active consolidation market in recent history, an underlying theme emerged from Hart Energy’s SUPER DUG Conference & Exhibition 2024 in Fort Worth last week. Executives, investors, and analysts conveyed admiration for the emissions reductions achieved across the shales while continuing to meet the growing demand for natural gas.

However, concern for continued investment echoed this praise, as many expressed the need for increased investment to support a world of flourishing population, economics, and technology.

Marshall Adkins, head of energy for Raymond James, shared an analogy demonstrating the energy demand impact from advancements in technology, most notably those sprouting from the widespread adoption of artificial intelligence. Adkins explained that a minimal whole-home generator consumes about 8,500 watts of power; to keep air conditioning, the washing machine, and garage door working results in a pull of approximately 14,000 watts. One single chip from NVIDIA requires that same 14,000 watts plus another 150 percent power for cooling, totaling approximately 35,000 watts — about the same as would completely power an average home as if there were no disruption in supply.

While this volume of power consumption seems hefty, consider that NVIDIA sold over half a million chips in a single quarter last year, and the effect starts to multiply exponentially. And while development of solar and wind power sources will replace most, if not all, of the current energy produced from coal, the stability of the power grid relies predominantly on the continuous stream of natural gas. That is, if the stream of investment into developing and expanding natural gas continues to grow in parallel.

Reflecting on the expectation from public and private investors, as well as upcoming talent, to embrace meaningful advancements in ESG, Will Van Loh, CEO of Quantum Energy Partners, shared the business benefit of greener practices.

“Switching your frac fleet from running diesel to natural gas, we saved one of our companies in the Haynesville half a million dollars per well and reduced GHG by 70 percent. Make a bunch of money and do good for the environment – (that’s a) pretty good deal,” Van Loh told Hart Energy’s editor-in-chief for Oil & Gas Investor, Deon Daugherty.

For decades, the industry has pursued increasingly eco-friendly habits, but the requirements of ESG reporting make it more visible to the rest of the world. Permian Operators, which produce almost half of all US daily oil volume, cited specific strides made in reducing emissions and operating more cleanly during their respective presentations:

  • Leadership from Diamondback Energy spoke about adopting the use of clear drilling fluids in lieu of oil-based mud, resulting in faster drilling times and cleaner operations. The technique came along with the acquisition of QEP Resources in 2021 and reflects the company’s commitment to remaining humble in its pursuit of more efficient and more environmentally beneficial methodologies.
  • Nick McKenna, vice president of the Midland Basin for ConocoPhillips praised their Lower48 team for reducing gas flaring by 80 percent since 2019 while also increasing the use of recycled water over 3x in that same 5-year horizon.
  • Clark Edwards, senior vice president of Development for BPX, cited achieving 95 percent electrification of their Permian well set as of the end of 2023. Building and installing their own microgrid – a practice repeated by numerous operators throughout the Basin, where public infrastructure lags far behind private entity needs – added enough megawatts to their operation to allow BPX to run drilling rigs completely independent of an already strained public grid.

In addition to reducing diesel usage, flaring, and dependence on the public grid for electricity, water management stays a top economic and ecological concern for shale operators all over the United States. While a compelling case of "have and have-not" dominated the shale water business over the last decade-plus, savvy operators increasingly embrace a mindset that water disposal should remain a choice of last resort. Companies like WaterBridge, a Joint Venture with Devon Energy, and Deep Blue, a joint venture with Diamondback Energy, help bring clean and recycled water to areas with shortages, both in and outside of the industry.

As Kaes Van’t Hof, president and CFO of Diamondback Energy, said, “The Midland Basin is now recycling as much water as it possibly can. Eventually it’s going to be about, ‘Water going downhole into a disposal well is the last option.’ Can you recycle it? Can you bring it somewhere else, evaporate it? We’re starting start some early de-sal[ination] tests in the Spanish Trail near the airport. Eventually, can we tell the story that we sell freshwater back to water the golf courses of Midland?”

The Energy Transition steams ahead, but pragmatic observations remind us that oil and gas make up approximately 60 percent of the energy supply today – a volume not easily replaced by any other source completely in the next few years. However, the overwhelming support for delivering the best barrel with the lowest carbon intensity possible permeated Hart Energy’s SUPER DUG Conference & Exhibition 2024.

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Houston maritime startup raises $43M to electrify cargo vessels

A Houston-based maritime technology company that is working to reduce emissions in the cargo and shipping industry has raised VC funding and opened a new Houston headquarters.

Fleetzero announced that it closed a $43 million Series A financing round this month led by Obvious Ventures with participation from Maersk Growth, Breakthrough Energy Ventures, 8090 Industries, Y Combinator, Shorewind, Benson Capital and others. The funding will go toward expanding manufacturing of its Leviathan hybrid and electric marine propulsion system, according to a news release.

The technology is optimized for high-energy and zero-emission operation of large vessels. It uses EV technology but is built for maritime environments and can be used on new or existing ships with hybrid or all-electric functions, according to Fleetzero's website. The propulsion system was retrofitted and tested on Fleetzero’s test ship, the Pacific Joule, and has been deployed globally on commercial vessels.

Fleetzero is also developing unmanned cargo vessel technology.

"Fleetzero is making robotic ships a reality today. The team is moving us from dirty, dangerous, and expensive to clean, safe, and cost-effective. It's like watching the future today," Andrew Beebe, managing director at Obvious Ventures, said in the news release. "We backed the team because they are mariners and engineers, know the industry deeply, and are scaling with real ships and customers, not just renderings."

Fleetzero also announced that it has opened a new manufacturing and research and development facility, which will serve as the company's new headquarters. The facility features a marine robotics and autonomy lab, a marine propulsion R&D center and a production line with a capacity of 300 megawatt-hours per year. The company reports that it plans to increase production to three gigawatt-hours per year over the next five years.

"Houston has the people who know how to build and operate big hardware–ships, rigs, refineries and power systems," Mike Carter, co-founder and COO of Fleetzero, added in the release. "We're pairing that industrial DNA with modern batteries, autonomy, and software to bring back shipbuilding to the U.S."

Shell partners with UK-based co. for hydrogen electrolyzer pilot

ultra-efficient electrolyzer

Shell Global Solutions International, a subsidiary of Shell, which maintains its U.S. headquarters in Houston, has signed a collaboration agreement with London-based Supercritical Solutions to advance Supercritical’s ultra-efficient hydrogen electrolyzer technology toward a field pilot demonstration.

In the deal, the companies will collaborate on a paid technology feasibility study that will support the evaluation and planning of the pilot demonstration, according to a news release. Supercritical Solutions’ technology aims to deliver high-efficiency renewable hydrogen at a lower cost for the industrial hydrogen market.

"Signing this collaboration agreement with Shell is a major milestone for Supercritical Solutions and an important step on our commercialisation journey,” Luke Tan, co-founder of Supercritical, said in the news release. “We are directly addressing the cost and complexity barriers facing the renewable hydrogen market. We are excited to move forward with a company like Shell, whose global leadership has been proven to accelerate innovative technologies to market.”

Supercritical’s hydrogen electrolyser technology can operate at high temperatures and pressures of up to 220 bar without the need for an external hydrogen compressor, rare-earth materials or easily degradable membranes. The technology removes the typical compression step in the process while delivering hydrogen at industry standards. It requires significantly less energy than many traditional electrolyzers and is more cost-efficient.

This recent investment builds on an ongoing relationship between Shell and Supercritical. Supercritical was founded in 2020 and was runner-up in Shell’s New Energy Challenge, which helps startups and scaleups develop sustainable technologies, in 2021. Shell Ventures then invested in Supercritical’s Series A funding round in 2024 with Toyota Ventures.

3 Houston-area companies named to Global Cleantech 100

Energized

Three Houston-area companies—Amperon, Hertha Metals and Vaulted Deep—appear on this year’s Global Cleantech 100 list.

The unranked list, generated by market intelligence and advisory firm Cleantech Group, identifies the 100 privately held companies around the world that are most likely to make a significant impact in the cleantech market over the next five to 10 years.

For the 2026 list, Cleantech Group received more than 24,000 Global Cleantech 100 nominations from nearly 60 countries. Cleantech Group scored those companies and narrowed the contenders to 264. An expert panel reviewed those nominees, and the list was whittled down to the 100 winners.

Here’s a rundown of the three Houston-area honorees:

Amperon

Founded in 2018 by Sean Kelly and Abe Stanway, Houston-based Amperon offers an AI-enabled energy forecasting and analytics platform designed to help stabilize electric grids. Amperon received undisclosed amounts of venture capital from National Grid Partners and Tokyo Gas Co. Ltd. last year and announced a recent investment from Samsung Ventures earlier this month.

Hertha Metals

Founded in 2022 by Laureen Meroueh, Conroe-based Hertha Metals provides a single-step process for producing sustainable steel. Last year, the company emerged from stealth mode and raised more than $17 million in venture capital.

Vaulted Deep

Vaulted Deep’s technology injects excess organic waste underground to remove carbon dioxide from the atmosphere. Julia Reichelstein and Omar Abou-Sayed founded the Houston-based company in 2023. Last year, the startup raised $32.3 million in venture capital. Also in 2025, Vaulted Deep signed a 12-year deal with software giant Microsoft to remove up to 4.9 million metric tons of carbon dioxide from the environment.

Vaulted Deep also made the list last year, along with Houston-based Syzygy Plasmonics and Fervo Energy. Fervo was also named the 2025 North American Company of the Year by Cleantech Group.