Except that US crude oil production is now rising.
http://www.eia.gov/dnav/pet/hist/LeafHandler.ashx?n=PET&s=MC...
http://www.eia.gov/dnav/pet/hist/LeafHandler.ashx?n=PET&s=MC...
Its been rising for a while, but still way below the peak in 1970. The behavior observed is not at all inconsistent with the prediction.