Our firm began as an oil and gas firm and our roots run deep in this arena.  We know the industry.  We know the issues. We know the law.  SDM is one of the top oil and gas, natural resources and energy firms in the nation.  We handle claims regarding royalties, ownership, leases, operations, exploration, production, regulatory issues, processing, transportation and taxation of natural resources. We represent clients at the courthouse, at the Texas Railroad Commission and at the General Land Office.  Our cases have set important legal precedents that govern today.