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McDermott Poaches Houston Energy Partner From Baker McKenzie (1)

Oct. 13, 2021, 4:48 PMUpdated: Oct. 13, 2021, 6:52 PM

McDermott Will & Emery has tapped Baker McKenzie for its newest Houston-based transactions partner, Denmon Sigler.

Sigler was most recently Baker McKenzie’s North American Energy Transaction Group Chair. She specializes in mergers, acquistions, and joint ventures in the traditional and renewable energy sectors, Sigler told Bloomberg Law. Her clients range from oil and gas owners to chemical companies.

“One of the main draws for me in moving over to McDermott was the ability to have a team that is outstanding at conventional energy matters, but equally outstanding with new energy and addressing energy transition,” Sigler said.

Law firms have long been attracted to Texas for its booming energy sector—it’s the country’s top producer of crude oil and natural gas, according to the U.S Energy Information Administration. The move of major technology companies like Tesla Inc. to Austin has also increased the state’s pull. Texas also produces about 28% of U.S. wind energy.

McDermott is the 24th largest firm in the U.S. by gross revenue, as the firm brought in nearly $1.4 billion last year across more than 1,100 lawyers, according to data provided to The American Lawyer. The firm is headquartered in Houston and recently opened a new office in Singapore.

McDermott reopened its offices on Tuesday, starting the transition back to in-person work.

At Baker McKenzie, Sigler was also co-chair of the firm’s North American anti-racism task force and led the Houston chapter of the firm’s female peer mentor group. She was previously a partner at Winston & Strawn and Baker Botts.

Sigler calls herself a “third generation oil industry employee.” Her career in the energy sector follows in the footsteps of her father and grandfather, both of whom worked for oil and petroleum businesses.

“Houston in particular continues to be the global headquarters for the energy industry,” Sigler said. “Texas is very pro-business in its regulations, and it’s been attracting a lot of transplants from California and other jurisdictions. It’s a very dynamic and exciting time to be not only in the energy industry itself, which is going through a significant change, but also to be in Houston.”

Sigler is one of many recent additions to McDermott’s Houston energy practice. Others include Jack Langlois, Jibin Luke, Kevin Brophy, and Andy Lehman, according to the statement. This year, McDermott has hired around 100 lawyers for its transactions practice group across the country, including at least six last month.

“The current market shows our conventional and renewable energy clients in Texas are engaged in a high level of transactional activity with high-impact business decisions,” said Harris Siskind, global head of McDermott’s transactions practice. “Denmon is a proven and trusted advisor to some of the largest energy companies in the United States and we are thrilled she’s chosen McDermott.”

(Updated with comments and information from Sigler throughout.)

To contact the reporter on this story: Ruiqi Chen in Washington, D.C. at

To contact the editor responsible for this story: Chris Opfer at