[The Largest Weekly Decline in U.S. EIA Strategic Petroleum Reserve in History] BlockBeats News, on May 20, U.S. crude oil inventory for the week ending May 15 reported by the EIA was -7.863 million barrels, compared to an expected -2.942 million barrels and a previous value of -4.306 million barrels. The weekly decline in the U.S. EIA Strategic Petroleum Reserve (SPR) last week marked the largest in history.