FILE - This March 31, 2015, file photo shows an oil sheen drifting from the site of the former Taylor Energy oil rig in the Gulf of Mexico, off the coast of Louisiana. Federal officials say they have found fresh evidence of an “ongoing oil release” at the site of a 13-year-old oil leak in the Gulf of Mexico, where chronic sheens often stretch for miles off Louisiana’s coast. In a court filing Friday, Dec. 15, 2017, government attorneys said recent surveys revealed two plumes of oil and gas flowing from where an underwater mudslide during Hurricane Ivan in 2004 toppled an offshore platform and buried the cluster of wells owned by Taylor Energy Corp. The company claims there is no evidence that oil is still leaking from its unplugged wells on the seafloor. (AP Photo/Gerald Herbert, File) The Associated Press