Department profile
McElroy, Sullivan & Miller LLP

Energy: State Regulatory & Litigation (Oil & Gas)

USA Guide 2026 : Texas

McElroy, Sullivan & Miller LLP

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Chambers Review

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Energy: State Regulatory & Litigation (Oil & Gas) - Texas

Band 3

What the Team is Known For
McElroy, Sullivan & Miller LLP is an energy-focused boutique recognized for representation of clients in the oil and gas sector in regulated upstream matters. Broad client base includes multinational corporations, nonprofits and regional landowners.
Notable practitioners
Brian R Sullivan, P.E.

Brian Sullivan is highly regarded for his work long experience advising clients on a variety of regulatory proceedings for oil and gas clients.


Kelli Kenney

Kelli Kenney handles regulatory matters before the Railroad Commission of Texas. She also handles oil and gas litigation with an emphasis on upstream disputes.


William Hayenga

Bill Hayenga represents clients before the RRC and other government agencies in Texas. He is noted for his work with oil & gas producers.

A knowledgeable and collaborative lawyer.

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Ranked Individuals at McElroy, Sullivan & Miller LLP (3)

Texas

  • Profile image of Brian R Sullivan, P.E.

    Brian R Sullivan, P.E.

    Energy: State Regulatory & Litigation (Oil & Gas)

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  • Profile image of Kelli Kenney

    Kelli Kenney

    Energy: State Regulatory & Litigation (Oil & Gas)

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  • Profile image of William Hayenga

    William Hayenga

    Energy: State Regulatory & Litigation (Oil & Gas)

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