BP oil spill

California methane gas leak 'largest' in US history: Scientists

UK government tells BP it would oppose takeover: Reports

BP appeals US judge's ruling on size of Gulf oil spill

BP ''grossly negligent'' in 2010 US spill, fines could be $18 billion

Halliburton pays $1.1 bn for Gulf of Mexico BP spill

BP seeks to recoup ''windfall'' Gulf spill payments