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Board of Directors

Bobby D. Riley

Portrait

Bobby D. Riley was appointed as the Chairman of REP’s board of managers, President and Chief Executive Officer in June 2016. Mr. Riley also served as the Chief Executive Officer of REG from when it was founded in 2012 to May 1, 2018. Prior to joining REP, Mr. Riley was the Chairman and Chief Executive Officer of Riley Exploration, LLC, or REX, since he founded REX in 2007 through 2012. Mr. Riley has nearly 40 years of experience in the independent oil and gas sector, in North America, South America, Europe, Africa and Asia. He has an extensive background in all aspects of oil and gas management and operations, including drilling, completion, work-over and production. In addition to his management and operational expertise, he has designed and patented specialized completion equipment that was licensed to Baker-Hughes and participated in the design, development and testing of Intelligent Well Bore Systems, which was sold to Weatherford International in 2000. In 2009, Mr. Riley created a joint venture with a private equity group to invest in unconventional oil and gas plays and deployed over $350.0 million of debt and equity capital in the Eagle Ford Shale and the Permian Basin. The joint venture acquired approximately 50,000 acres of prime leasehold acreage, drilled and completed over 40 wells and reached peak production of 4,000 BOE/d. From 2005 to 2007 Mr. Riley was Vice President of Operations at Activa Resources, Inc., or Activa, a publicly-traded exploration and production company. From 2002 to 2005, he was Managing Partner of Tuleta Energy Partners, LLC, a privately-held exploration and production company, until it was acquired by Activa Resources, Inc. From 1991 to 2001 Mr. Riley was President of an oil and gas service company specializing in well design and reservoir data acquisition, that was active in Nigeria, Venezuela, and Norway. He founded his first independent exploration and production company, Durango Energy, Inc., in 1984, and operated up to 150 wells in Oklahoma. Prior to that he was District Manager of Monitoring Systems Inc., a drilling and well control instrumentation company, installing equipment on jack-up rigs and semi-submersibles in the U.S., Brazil and Korea. Mr. Riley began his oil and gas career with Cameron Iron Works in Houston, Texas, in 1974. Mr. Riley has a bachelor’s degree in Business, Accounting and Finance from the University of Science & Arts of Oklahoma and completed the Advanced Drilling Operations and Well Control program at Murchison Drilling Schools. He is a member of the American Petroleum Institute and the Society of Professional Engineers and is IADC / MMS Well-Cap Certified. TGC believes Mr. Riley’s experience founding and leading REP’s growth as its Chief Executive Officer and his extensive experience working with various oil and gas companies qualifies him to serve on TGC’s board of directors.

Michael J. Rugen

Michael J. Rugen was named Chief Financial Officer of TGC in September 2009 and as interim Chief Executive Officer in June 2013. Mr. Rugen is a certified public accountant (Texas) with over 35 years of experience in exploration, production and oilfield service. Prior to joining TGC, Mr. Rugen spent 2 years as Vice President 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. In 1999 and 2000, Mr. Rugen provided finance and accounting consulting services with Jefferson Wells International. 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 Bachelor of Science in Accounting in 1982 from Indiana University.

Brent Arriaga

Brent Arriaga is the Corporate Controller of Helix Energy Solutions Group, Inc., an offshore energy service company. Mr. Arriaga has over 20 years of experience in finance and accounting in the energy and financial services industries spanning several continents. Prior to his role at Helix, Mr. Arriaga held roles in financial accounting and controllership at Weatherford International, Citigroup, Inc., and Credit Suisse Group. Mr. Arriaga began his career as an auditor at KPMG LLP. Mr. Arriaga holds a Bachelor of Business Administration in Accounting from the University of Texas at Austin and a Master of Business Administration from Rice University, Jesse H. Jones Graduate School of Business, where he was a Jones Scholar. Mr. Arriaga is a Certified Public Accountant in the State of Texas and is a Chartered Financial Analyst.

Bryan H. Lawrence

Bryan H. Lawrence was appointed as a member of REP’s board of managers in June 2016. Mr. Lawrence is a founder and senior manager of Yorktown Partners LLC, the investment manager of the Yorktown Partners group of investment funds, which make investments in companies engaged in the energy industry and has served in such in positions since 1983. The Yorktown Partners investment funds were formerly affiliated with the investment firm of Dillon, Read & Co. Inc. where Mr. Lawrence had been employed since 1966, serving as a Managing Director until the merger of Dillon Read with SBC Warburg in September 1997. Mr. Lawrence also serves as a director of Carbon Energy Corporation, Hallador Energy Company, Ramaco Resources, Inc. and the general partner of Star Group, L.P. (each a United States publicly traded company) and certain non-public companies in the energy industry in which Yorktown Partners investment funds hold equity interests. Mr. Lawrence is a graduate of Hamilton College and also has an M.B.A. from Columbia University.

E. Wayne Nordberg

E. Wayne Nordberg is currently the Chairman and Chief Investment Officer of Hollow Brook Wealth Management, LLC, a private investment management firm serving family offices, foundations, charities and pensions, and has served in such position since 1995. He has over 50 years of experience in investment research and portfolio management. From 2003 to 2007, Mr. Nordberg was a Senior Director at Ingalls & Snyder LLC, a privately owned registered investment advisor. He also formerly served on the Board of Directors of Lord, Abbett & Co., a mutual fund family, from 1988 to 1998. Mr. Nordberg also serves as an independent director of The Reeves Utility Income Fund, a $1 billion closed end investment trust listed on the NYSE, specializing in energy companies.