Where is the largest oil reserve in the US?

Green River (utah, colorado, wyoming) deposits of ';oil shale'; are estimated at 3.3 trillion barrels





ANWAR reserves are estimated at 10.7 billion barrels





Alaska oil reserves are estimated at 8 billion barrels





by contrast Saudi arabia has 260 billion barrelsWhere is the largest oil reserve in the US?
In the plants. All oil comes from plants.