Delek Sues Over Oil 1,000 Times More Contaminated Than Allowed

Oil refiner Delek US Holdings Inc. claims it lost over $30 million after buying a cargo of crude contaminated with more than 1,000 times the acceptable level of a damaging chemical.

Testing of a shipment earlier this year showed that one batch contained 5,600 parts per million of organic chloride, which can harm refineries and equipment in large quantities, according to a lawsuit against Marex Group Plc and BTX Energy LLC filed in state court near Houston.

A spokesperson for Marex, named in the suit as guarantor of a supply deal with its Pinnacle Fuel unit, declined to comment. Delek ...