Company: Reserves. Shell Shocked. Robert Plummer, Derek Butter, Tom Ellacott. Petroleum Review February 2004 P. 14-15
Following the dramatics announcement of a 3.9mn boe downgrade of Shell's proved reserve base, the consultants Robert Plummer, Derek Butter and Tom Ellacott of Wood Mackenzie have produced an analysis of the reserves position of the three supermajors - Shell, BP and ExxonMobil.