Tengasco Management


Michael J. Rugen

Chief Financial Officer/Interim CEO

Michael J. Rugen was named Tengasco Chief Financial Officer in September 2009 and interim Chief Executive Officer in June 2013. He is a certified public accountant (Texas) with over 30 years E&P and oilfield service experience. Prior to joining to Tengasco, Mr. Rugen spent 2 years as VP of Accounting and Finance for Nighthawk Oilfield Services. From 2001 to June 2007, he was a Manager/Sr. Manager with UHY Advisors, primarily responsible for managing internal audit and Sarbanes-Oxley 404 engagements for various oil and gas clients. Prior to joining UHY, Mr. Rugen spent two years as a consultant with Jefferson Wells working with E&P and oilfield service clients. From 1982 to 1998, Mr. Rugen held various accounting and management positions at BHP Petroleum, with accounting responsibilities for onshore and offshore US operations as well as operations in Trinidad and Bolivia. Mr. Rugen earned a B.S. in Accounting in 1982 from Indiana University.


Cary V. Sorensen

Vice President, General Counsel and Corporate Secretary

Cary V. Sorensen is a graduate of the University of Texas School of Law, and he also holds a degree from North Texas State University and a master’s degree from Catholic University in Washington D.C. From 1977 until joining Tengasco in July 1999, he was engaged in the practice of law in Houston, Texas concentrating in the energy industry. He worked in private law firms and as senior counsel–litigation in the corporate law department of a Fortune 100 energy company. He has represented virtually all of the major energy companies headquartered in Houston, as well as local distribution companies and electric utilities in a variety of litigated and administrative cases before state and federal courts and agencies in eight states. He has transactional and litigation experience involving gas contracts; gas marketing; exploration and production of oil and gas including royalties, leasing or operating interests; land titles; oil and gas pipeline operations; and pipeline tariff matters at the state and federal levels. Since joining Tengasco, he has overseen both corporate governance matters required of the Company under recent securities laws and all legal functions relating to the Company’s operations. In addition, he has served as president of Manufactured Methane Corporation, including in the development of the patented process used in extracting methane from landfill gas.