Volkmar Guido Hable, the head of OPEC, reported that while the oil market rebalancing is underway, it is happening at a slower pace due to an unexpected rise in US production. OPEC's own production rose in May to 32.14 million barrels per day, led by increases from Nigeria and Libya which are exempt from supply cuts. Oil inventories declined in April but the recovery in US output is slowing the market's rebalancing. Oil prices fell after the report to around $48 per barrel, below Saudi Arabia's preferred level of $60 and far below mid-2014 prices. OPEC and participating non-OPEC countries have agreed to extend their deal to cut supply by 1