new hire

New York law firm expands energy practice with new partner appointment

Sarah McLean brings over 20 years of energy industry experience to her new role at Willkie Farr & Gallagher. Photo via Wilkie.com

Willkie Farr & Gallagher has announced that Sarah McLean has joined the firm’s Houston office as a partner. It's the sixth energy industry group hire in the past year.

McLean’s practice will focus on private equity transactions. Mostly the transactions will be acting for sponsors in making portfolio investments, exiting their investments, and growing their platform companies.

“Willkie has leading private equity and transactional capabilities, a fast-growing energy platform and a collaborative culture across the Firm," McLean says in a news release. "I’m excited to join the exceptional team here and further strengthen Willkie’s dynamic work across the energy sector to support the growing needs of our clients.”

McLean was a joint head of the US Energy industry group at Shearman & Sterling prior to Willkie Farr & Gallagher, and her experience in the energy sector includes 20 years.

“Sarah is a standout private equity and energy lawyer and we are pleased to welcome her to Willkie,” Chairman Thomas Cerabino says in the release. ”She brings significant dealmaking experience to our global energy team in Texas and across the U.S. and Europe and will be an invaluable resource to our clients navigating the changing energy market.”

Willkie provides legal solutions to businesses that address critical issues that affect multiple industries and markets with 13 offices worldwide.

“Sarah has a stellar reputation as a market-leading lawyer and dealmaker, with deep private equity and M&A experience in the oil and gas and energy transition sectors that will further the growth of our expanding Texas platform,” Archie Fallon, managing partner of the Houston office, says in a news release. “As clients look for new opportunities in the evolving energy sector, Sarah’s substantial track record and experience will complement our capabilities in Texas and across the firm, and we are thrilled to welcome her to Willkie.”

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A View From HETI

Babur Ozden is the founder and CEO of Aquanta Vision. Photo via LinkedIn

Houston-based climatech startup Aquanta Vision achieved key milestones in 2025 for its enhanced methane-detection app and has its focus set on future funding.

Among the achievements was the completion of the National Science Foundation’s Advanced Sensing and Computation for Environmental Decision-making (ASCEND) Engine. The program, based in Colorado and Wyoming, awarded a total of $3 million in grants to support the commercialization of projects that tackle critical resilience challenges, such as water security, wildfire prediction and response, and methane emissions.

Aquanta Vision’s funding went toward commercializing its NETxTEN app, which automates leak detection to improve accuracy, speed and safety. The company estimates that methane leaks cost the U.S. energy industry billions of dollars each year, with 60 percent of leaks going undetected. Additionally, methane leaks account for around 10 percent of natural gas's contribution to climate change, according to MIT’s climate portal.

Throughout the months-long ASCEND program, Aquanta Vision moved from the final stages of testing into full commercial deployment of NETxTEN. The app can instantly identify leaks via its physics-based algorithms and raw video output of optical gas imaging cameras. It does not require companies to purchase new hardware, requires no human intervention and is universally compatible with all optical gas imaging (OGI) cameras. During over 12,000 test runs, 100 percent of leaks were detected by NETxTEN’s system, according to the company.

The app is geared toward end-users in the oil and gas industry who use OGI cameras to perform regular leak detection inspections and emissions monitoring. Aquanta Vision is in the process of acquiring new clients for the app and plans to scale commercialization between now and 2028, Babur Ozden, the company’s founder and CEO, tells Energy Capital.

“In the next 16 months, (our goal is to) gain a number of key customers as major accounts and OEM partners as distribution channels, establish benefits and stickiness of our product and generate growing, recurring revenues for ourselves and our partners,” he says.

The company also received an investment for an undisclosed amount from Marathon Petroleum Corp. late last year. The funding complemented follow-on investments from Ecosphere Ventures and Odyssey Energy Advisors.

Ozden says the funds will go toward the extension of its runway through the end of 2026. It will also help Aquanta Vision grow its team.

Ozden and Marcus Martinez, a product systems engineer, founded Aquanta Vision in 2023 and have been running it as a two-person operation. The company brought on four interns last year, but is looking to add more staff.

Ozden says the company also plans to raise a seed round in 2027 “to catapult us to a rapid growth phase in 2028-29.”

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