This just in:
http://www.cnn.com/2007/WORLD/americas/11/08/brazil.oil.ap/index.html
That's one green country that might be greener still.

This find closely follows the trend, significantly more difficult to get to.

The Tupi field lies under 2,140 meters (7,060 feet) of water, more than 3,000 meters (almost 10,000 feet) of sand and rocks, and then another 2,000-meter (6,600-foot) thick layer of salt.

It might fuel the world for another 60 days or so - heroic engineering though - very nearly a depth of four and a half miles!

Xeroid.