Shell's CEO Jeroen van der Veer (L) and Peter Voser, CFO of Shell, attend the presentation of the 2007 full-year results in The Hague, January 31, 2008. Van der Veer told reporters on a conference call that Shell made 11 material discoveries in 2007 and had an exploration success rate of 40 percent, yielding an extra 1 billion barrels of oil equivalent of resources. REUTERS/Robin van Lonkhuijsen (NETHERLANDS)