Management Team

Larry Keller — Founder/Chief Executive Officer

Mr. Keller is an oil and gas industry veteran with over 33 years of experience. Prior to founding Rover Petroleum, Mr. Keller co-founded and served as the chief operating officer of Juno Energy I&II a conventional exploration and production company focused in North Texas and Oklahoma. Before Juno Energy, Mr. Keller consulted for various independent exploration and production companies including Ensight Energy Partners I&II and Comstock Resources. In 1990 Mr. Keller began working with COHO Energy as a petroleum engineer and progressed to Vice President of the Midcontinent Division before he left in 1998 to co-found Ascent Energy. While at Ascent Energy, Mr. Keller served as SVP of Operations for south Louisiana, south Texas and central Oklahoma. Mr. Keller began his career with PG&E Resources as a petroleum engineer. He holds a B.S. in Petroleum Engineering from the Colorado School of Mines.


James Chriesman – Co-Founder/Chief Financial Officer

Mr. Chriesman began his career at Arthur Andersen in 1983 where he spent 17 years as an auditor servicing numerous public and private oil & gas and real estate entities. Mr. Chriesman managed several large projects including the engagement to assist the Kuwait Oil Company’s financial reporting group recover from the Gulf War. Between 2008 and 2015, Mr. Chriesman pursued several non-energy ventures in technology, marketing and real estate in executive level roles and as an investor. From 2008 to 2015, Mr. Chriesman served as CFO for Juno Energy where he was responsible for capital allocation, planning and reporting. Mr. Chriesman holds a BBA in Finance and an MBA with an Accounting focus from Angelo State University.


John Chadwick – Co-Founder/Chief Operating Officer

Prior to co-founding Rover Petroleum, Mr. Chadwick served as Vice President of Geology for Juno Energy I&II. While at Juno Energy, Mr. Chadwick was responsible for developing and extending the secondary recovery efforts, as well as generating prospective areas for future acquisitions and development. From 2003 to 2009, Mr. Chadwick served as a Senior Geologist for Matador Resources and subsequently Chesapeake Energy, leading teams in North Louisiana and East Texas. In 1991, Mr. Chadwick joined COHO Energy as a Senior Geologist. While at COHO, he became a Manager of Geology and Land and was responsible for field development and prospect generation/evaluation. After beginning his career with General American Oil Company in 1981 as a geologist, Mr. Chadwick became the Lead Exploration Geologist for Phillips Petroleum Company’s Mid-Continent Division. Mr. Chadwick holds a B.S. in Geology, M.S. in Finance and an MBA from the University of Texas at Dallas.

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