What We Do

Litigation

SDM earned its reputation as one of the finest trial and appellate firms anywhere through decades of real courtroom experience in high-stakes disputes. Our deep roster of advocates serves our clients well not only in the courtroom but also at the negotiating table.

Oil, Gas & Energy

SDM is a leader in Texas oil, gas, and energy law. The firm’s foundation is built on representing generations of clients in cases before the courts, the Texas Railroad Commission, the Texas General Land Office, and University Lands.

State & Local Tax Disputes

SDM is among the state’s foremost authorities in resolving tax disputes with the Texas Comptroller. From litigation in administrative hearings or in state court to advice regarding tax saving strategies, we handle the full complement of state and local tax issues.

Practice Areas

Litigation

Oil, Gas & Energy

State & Local Tax Disputes

Case Highlights

Jury Trial Involving Bitcoin

Record-setting Jury Verdict

Oil Patent Lawsuit

SDM Wins Case-Determinative Sanctions

Patent Infringement Trial

Client awarded $17.9M verdict

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