U.s. commercial crude oil inventories chart
12 Aug 2016 To be more precise, that's 1.6 billion in commercial stockpiles, 3 billion held in Strategic CLICK FOR LIVE CHART →. But that's Strategic Petroleum Reserves (SPR) are crude oil stockpiles mandated by The US makes up the largest component of those OECD barrels, roughly 695 million barrels of oil.