estimated 3 trillion barrels nov 2012 ABC News ^ http://abcnews.go.com/Business/american-oil-f... abcnews.go.com more oil than OPEC ABC News ^ estimated http://abcnews.go.com/Business/american-oil-f... ABC ^ over 3 trillion barrels discoveries of large deposits of oil in shale formations abcnews.go.com ABC News estimated ABC ^ Green River over 3 trillion barrels ABC reported 3 trillion barrels of oil http://abcnews.go.com/Business/ameri...2#.UKP_NuRfC3E http://abcnews.go.com/Business/ameri...2#.UKP_NuRfC3E we have plenty of our own over 3 trillion barrels "oil find" http://abcnews.go.com/Business/ameri...2#.UKP_NuRfC3E ABC 2012 federal report holds more oil than all of OPEC. http://abcnews.go.com/Business/ameri...2#.UKP_NuRfC3E Colorado Oil shale. we have plenty of our own Green River industry sources abcnews.go.com abcnews.go.com