Oil rigs extract petroleum in Culver City, California, on May 16, 2008, as the price of crude oil rose to nearly USD 128 per barrel, prompting oil companies to reopen numerous wells across the nation that were considered tapped out and unprofitable decades ago when oil sold for one-fifth the price or less. AFP PHOTO / GABRIEL BOUYS (Photo credit should read GABRIEL BOUYS/AFP via Getty Images)
