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Simpson Lures ‘Rising M&A Star’ Lukaszewski away from Sidley

September 11, 2023 Claire Poole

Simpson Thacher & Bartlett announced Monday that Katy Lukaszewski joined the firm’s Houston office as a partner in the energy and infrastructure practice.

The M&A attorney is coming from Sidley Austin, where she spent 11-plus years, working her way up to partner in 2020. The UT Law grad previously was at Cox Smith Matthews as an associate.

Katy Lukaszewski

Lukaszewski represents companies and private equity sponsors across a variety of corporate transactions, including mergers, acquisitions and joint ventures, with a focus on upstream oil and gas and consumer products.

Last year, she co-led the deal team (with Irving Rotter) counseling Neste Corp. on establishing a 50/50 joint venture with Marathon Petroleum that will produce renewable diesel after a conversion project of Marathon’s refinery in Martinez, Calif. Neste’s planned investment: about $1 billion.

And this past April, she advised Japanese trading house Mitsui & Co. Ltd. on acquiring a 92 percent working interest in an unconventional gas asset in South Texas from Silver Hill Energy Partners’ Silver Hill Eagle Ford E&P for undisclosed terms. Mitsui already holds a 16.6 percent stake in the Cameron LNG facility in Hackberry, La.

Lukaszewski also counseled the Hero Mighty Patch brand on its sale to Church & Dwight Co. Inc. this past September for $630 million. 

Her past clients have also included private equity firm Kimmeridge Energy.

“Simpson Thacher has a premier M&A practice, extensive industry experience and a wonderful culture,” she said. “I’m excited to join this exceptional team and to advise a great roster of clients on some of their most complex and interesting transactions.”

Alden Millard, chair of Simpson Thacher’s executive committee in New York, said in a statement that as the energy market continues to evolve and clients look for new opportunities in the sector, Lukaszewski’s industry experience “complements the strength of both the firm’s Houston office and its global energy and infrastructure practice.”

David Lieberman, managing partner of the Houston office, said the Bayou City office has a reputation for its energy and infrastructure expertise and transactional counsel and counts Lukaszewski as a “rising M&A star.”

Breen Haire, a Houston partner and co-head of the firm’s energy and infrastructure practice (with Eli Hunt in New York and Amy Mahon in London), said Lukaszewski is an innovative and commercially minded dealmaker. “We know she will be an incredible asset to clients as we continue to advise on matters at the forefront of the energy and infrastructure sectors,” he added.

Claire Poole

Claire Poole is a senior writer at The Texas Lawbook, where she covers corporate transactions.

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