Thompson & Knight LLP

Andrew B Derman

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Andy Derman is the Firm’s International Energy Practice Group Leader and serves as Chairman and Board Member of Thompson & Knight Global Energy Services, LLC, a wholly owned affiliate of the Firm that provides technical, economic, and commercial advisory services to the energy sector. With a concentration on oil and gas investment projects and cross-border transactions, he focuses on providing legal and commercial support in connection with acquisitions, divestments, trades, and mergers; strategic commercial and business advice; large infrastructure projects, including LNG, GTL, and refineries; nationalization/expropriation; anti-corruption (FCPA) and sanction advice; unitizations; boundary (onshore and offshore) disputes; exploration, development, and production operations; production sharing contracts; negotiations; and dispute resolution (litigation, arbitration, and expert testimony).

Andy has assisted clients in more than 80 countries on six continents and offers clients a comprehensive understanding of oil and gas activities through experience in a broad spectrum of countries and companies. He provides clients with traditional legal representation – contract negotiation/drafting and dispute resolution, including arbitration and litigation – along with business development/commercial counseling, including the identification and capture of oil and gas opportunities.


Served as an executive and attorney for Sun Oil Company and its successor, Oryx Energy Company, for nearly 20 years.