Mr Holderness has over 20 years experience in the energy sector including nine years with KPMG, where his practice was focused in the energy industry. He most recently served as senior vice president and CFO of Eagle Rock Energy Partners.

Mr Holderness is a 1986 graduate of the Boise State University with a Bachelor of Business Administration in Accounting and is a certified public accountant.

Steven Beal, president and COO of Concho Resources, said: I have known Darin since the late 1980s and worked with him during his tenure at KPMG, while I served as the CFO at Parker and Parsley Petroleum Company. His technical background and training, both in public accounting and the energy industry, provide the perfect complementary skill set to our management team.