Just to highlight what this could be if it comes off.
Exxon has spent 6.6 billion (5.5 billion in shares upfront with 1 billion in cash down the track) acquiring acreage in the Permian in Texas and is dedicating 50% of their worldwide budget to it. Which should tell you they're pretty much out of ideas with viable prospects anywhere else.
Pretty quickly you'll have companies crawling all over this to get a piece.