David C. Lawler is a member of the board of directors of our general partner and serves as a member of the audit committee. Mr. Lawler currently serves as Chief Executive Officer of BP’s US Lower 48 Onshore exploration and production business and is a member of the board of directors of BP America Production Company. Prior to joining BP in September 2014, Mr. Lawler was the Executive Vice President and Chief Operating Officer of SandRidge Energy, Inc., an independent oil and gas producer based in Oklahoma City. Before joining SandRidge in 2011, Mr. Lawler was the CEO and President of Post Rock Energy Corporation, another independent oil and gas company in Oklahoma. He began his career as a production engineer at Conoco before moving to Burlington Resources, and spent 10 years at Shell Exploration and Production Company in roles of increasing responsibility, including business planning for the Americas and engineering and operations manager for the US Gulf Coast business unit. He holds a Bachelor of Science in Petroleum Engineering from the Colorado School of Mines and an MBA from Tulane University.