Mr. Stoneburner joined Pine Brook in April 2013 and is an executive advisor. He is also a member of the Investment Committee. Mr. Stoneburner represents Pine Brook as a board director of Accelerate Resources Holdings, LLC, Brigham Minerals, LLC, Elevation Resources Holdings, LLC, Pursuit Oil & Gas, LLC, Saguaro Resources Ltd. and Serafina Energy Ltd.

Mr. Stoneburner has more than 41 years of experience in the oil and gas industry.

He was president of the North America Shale Production Division for BHP Billiton Petroleum from 2011 to 2012. From 2009 to 2011, Mr. Stoneburner was president and chief operating officer of Petrohawk Energy Corporation.

He was the company’s chief operating officer from 2007 to 2009, and led their exploration activities as vice president and then executive vice president of exploration from 2003 to 2007. Mr. Stoneburner began his career as a geologist in 1977 and held positions at Texas Oil and Gas Corp., Weber Energy Corp., Hugoton Energy Corp. and 3TEC Energy Corp.

Mr. Stoneburner serves as chairman of Tamboran Resources and is an advisor to Ayata. He also serves on the advisory council of the Jackson School of Geosciences at the University of Texas at Austin, on the visiting committee of the Bureau of Economic Geology at the University of Texas at Austin, and on the board of Switch Energy Alliance.

Mr. Stoneburner holds a B.S. in Geological Sciences from the University of Texas at Austin and an M.S. in Geological Sciences from Wichita State University.