Gulf Keystone Petroleum Limited announced that it has appointed Stuart Catterall as Chief Operating Officer and a member of the executive and leadership teams. Stuart will have responsibility for operational and technical activities within GKP, across the full spectrum of activities including procurement, budgeting and HSSE and will direct the execution of current work plan. Stuart has over 30 years experience in oil and gas undertaking a breadth of senior leadership and technical roles with Amerada Hess, BHP Billiton, Celtique Energy and, more recently, as an independent petroleum development and operations consultant for PA Resources, Enquest and Petroceltic.