Huge new oil find

Peak oil update: Exxon Mobil has announced the "large" discovery of at least 600 million barrels of oil in the Hadrian field under the Gulf of Mexico - fantastic, plenty of oil then. Oh wait - that's only 6 DAYS world consumption. And this is "among the largest gulf discoveries in the past DECADE". 

Oil prices are coming down. I'm sure of it. No really.  

If we consider the net energy gain from the new oil, rather than the gross, and we must remember that this is required by law (2nd law of thermodynamics), the 6 days will drop to (say) 4 days.