We live in a petroleum-saturated world. Literally. Despite fears of reserve shortages and declining crude, world oil production has experienced a steady rise in recent years, to the tune of an estimated 72.26 million barrels a day for 2009, up from 65.92 million barrels a day in 1999.

On the one-year anniversary of the BP Oil Spill in the Gulf of Mexico, we take a look at the future of crude as we enter an era of "tough oil." This interactive map - and our coverage below - examines how world crude oil production has shifted over the years, particularly from 1960 to 2010, as oil producers search for new locations and methods for extracting oil.