Compañía Española de Petróleos, S.A.U. agreed to acquire 45% stake in the Bir el Msana field in Algeria from Hess AG (DB: HEAG) on April 18, 2013. Jeremy Parr and Inigo del Val of Allen & Overy Spain acted as the legal advisors to Compañía Española de Petróleos, S.A.U.