You should cut them some slack, they just made the biggest oil strike in 30 years in the gulf due to their perseverance. They will now go for the gold ring on some really deep holes into the 'methane' zone. You may believe that it isn't there, but who has the capital?
No, no they didn't. Neither the Prudhoe Bay or Kealthey Canyon discoveries were made by geologists utilizing abiogenic oil "theories".