Every place in the world we get oil and gas right now is in basins that were once at the bottom of ancient seas. Basins such as the Appalachian basin, the Anadarko Basin, the Piceance Basin, the Delaware Basin, the Permian Basin, the Powder River Basin, the Denver Julesberg Basin, the Williston basin, the Sacramento Basin, the Illinois Basin, the Black Warrior Basin, the Michigan Basin, the Los Angeles Basin---------and that is only a few of the basins in the US. I've worked in most of them.