O'Melveny
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Since initiating its operations in Texas in 2021, O'Melveny has established itself as a strong choice of counsel for clients in the Texas electricity market, acting on industrial facility development, energy transactions, power generation, and energy cost management. Its slate of matters frequently includes regulatory matters and litigation, and representation in cases before the PUCT and the New Mexico Public Regulation Commission. Three lawyers share joint leadership of the practice: Katie Coleman, an expert in energy transactions and regulatory policy; Philip Oldham, who has regulatory expertise across a number of energy subsectors; and Ben Hallmark, whose practice is focused on administrative law and litigation. Rex VanMiddlesworth is an additional senior figure to note. All named lawyers are based in Austin.
Legal 500 Editorial commentary
Key clients
- Texas Industrial Energy Consumers (TIEC)
- Texas Association of Manufacturers (TAM)
Work highlights
Supporting Texas Instruments by providing holistic regulatory and strategy advice for energy matters, as well as specific transactional assistance on energy procurements and renewable project development.


