Helge Lund, Chief Executive Officer of BG Group, Claudio Descalzi, CEO of Eni, Emilio Lozoya, Chief Executive Officer of Petroleos Mexicanos , Bob Dudley, Group Chief Executive of BP, Amin H. Nasser, President and CEO of Saudi Arabian Oil Company Saudi Aramco, Patrick Pouyanne, Chief Executive Officer of Total, Eldar Saetre, CEO of Statoil, Josu Jon Imaz, Chief Executive Officer of Repsol, pose for a family photo before the Oil and Gas Climate Initiative summit in Paris, France, October 16, 2015. Oil and gas industry leaders launch a final charm offensive on Friday to highlight the sector's relevance in the global fight against climate change before a key summit in Paris later this year.