Spr On Monday, the Department of Energy (DoE) reported that crude oil inventories in the Strategic Petroleum Reserve (SPR) rose by another 800,000 barrels in the week ending August 28, with the SPR inventory still sitting at a near 40-year low of 350.3 million barrels. The amount being funneled into the SPR is a small portion of the hundreds of millions of barrels that were sold off out of the SPR over the last couple of years.