OPEC oil supply sank to a four-year low in March, a Reuters survey found, as top exporter Saudi Arabia over-delivered on the group’s supply-cutting pact while Venezuelan output fell further due to sanctions and power outages.  The 14-member Organization of the Petroleum Exporting Countries pumped 30.40 million barrels per day (bpd) last month, the survey showed on Monday, down 280,000 bpd from February and the lowest OPEC total since 2015. The survey suggests that Saudi Arabia and its Gulf allies are pressing ahead with even larger supply cuts than called for by OPEC’s latest deal, shrugging off pressure from U.S. President Donald Trump to increase supply. On Thursday, Trump again called for OPEC to pump more oil to lower […]