Peak Oil was over as early as the 1970's. Saudi already pumping oil out by injecting water - and this is a desert!
" At Ghawar, the engineer said, the 'water cut' was 30%."
"The hairs on the back of my neck stood up. Ghawar's water injections were hardly news, but a 30% water cut, if true, was startling. Most new oilfields produce almost pure oil or oil mixed with natural gas--with little water. Over time, however, as the oil is drawn out, operators must replace it with water to keep te oil flowing --until eventually what flows is almost pure water and the field is no longer worth operating."
"Ghawar will not run dry overnight, but the beginning of the end of its oil is in sight." Paul Roberts, "New Tyrants for Old as the Oil Starts to Run Out, " Sunday Times (News Review), May 16, 2004, p. 8