A multimillion-dollar case stemming from the 2004 oil spill in the Delaware River is being sent back to the district court by the U.S. Court of Appeals for the Third Circuit.

The owner of the tanker, Frescati Shipping Co., paid $180 million to clean up the 263,000 gallons of oil that spilled after the hull of the ship was pierced by a 9-ton anchor that had been left on the riverbed, it told the court. Frescati was reimbursed for $88 million by the U.S. government under the Oil Pollution Act of 1990 and sought to recoup the rest from Citgo, which had ordered the oil and owned the pier where the ship was docking when it was punctured.