Monday morning, independent oil and gas company TXCO Resources Inc. (TXCO) said it named the company's Vice President of Exploration Gary Grinsfelder as President. The San Antonio, Texas-based company said James Sigmon would continue to be the Chairman and Chief Executive Officer.
Grinsfelder joined TXCO in April 2007 when it acquired Output Exploration LLC of Houston, where he served as Vice President of Exploration and Business Development.
In his new role, Grinsfelder will oversee growth as well as managing its land, exploration, legal, and investor relations and corporate communications departments.
Prior to joining TXCO as part of the Output acquisition, Grinsfelder was Vice President of Exploration for Triad Energy and before that worked as a geologist for Spartan Petroleum Corp. He began his oil and gas career with Union Oil Co. of California.
Grinsfelder holds a bachelor's degree in geology from Southern Methodist University and conducted graduate-level studies at the University of Puerto Rico and the University of Houston.
Grinsfelder, along with James J. "Jeff" Bookout, Vice President and Chief Operating Officer, and P. Mark Stark, Vice President, Treasurer and Chief Financial Officer, will continue to report to Sigmon.
TXCO is currently up $0.79 or 7.10% and trades at $11.91.
For comments and feedback contact: editorial@rttnews.com
June 05, 2026 16:18 ET A busy week for economic news flow saw a slew of reports being released that reflected the trends in the U.S. labor market. In Europe, economic growth and inflation data gained attention as the European Central Bank and Bank of England head for policy session later in the month. In Asia, the monetary policy session of the Indian central bank was in focus as the country, a major oil importer, reels under the pressures of a weaker rupee and rising inflation.