ExclusiveFront runner emerges for prized Adnoc expansion on UAE's largest offshore oilfieldUpper Zakum oil output capacity stands at more than 1 million bpd, with the operator eyeing further boostUpper Zakum expansion: Sultan Ahmed Al Jaber, chief executive of AdnocPhoto: AP/SCANPIXNishant UgalMiddle East and South Asia EditorNew Delhi