By ERIC TUCKER and MICHAEL KUNZELMAN
25 May 2015 WASHINGTON (AP) – A decade-old oil leak where an offshore platform toppled during a hurricane could continue spilling crude into the Gulf of Mexico for a century or more if left unchecked, according to government estimates obtained by The Associated Press that provide new details about the scope of the problem. Taylor Energy Company, which owned the platform and a cluster of oil wells, has played down the extent and environmental impact of the leak. The company also maintains that nothing can be done to completely eliminate the chronic oil slicks that often stretch for miles off the coast of Louisiana. Taylor has tried to broker a deal with the government to resolve its financial obligations for the leak, but authorities have rebuffed those overtures and have ordered additional work by the company, according to Justice Department officials who were not authorized to comment publicly by name and spoke only on condition of anonymity. “There is still more that can be done by Taylor to control and contain the oil that is discharging” from the site, says an Interior Department fact sheet obtained by AP. Federal regulators suspect oil is still leaking from at least one of 25 wells that remain buried under mounds of sediment from an underwater mudslide triggered by waves whipped up by Hurricane Ivan in 2004.

An oil sheen from a decade-old oil leak where an offshore platform toppled during Hurricane Ivan in the Gulf of Mexico. Federal regulators suspect oil is still leaking from at least one of 25 wells that remain buried under mounds of sediment from an underwater mudslide triggered by waves whipped up by the hurricane in 2004. Photo: Oscar Garcia Pineda / Watermapping.com

A Taylor contractor drilled new wells to intercept and plug nine wells deemed capable of leaking oil. But a company official has asserted that experts agree the “best course of action … is to not take any affirmative action” due to the risks of additional drilling. An AP investigation last month revealed evidence that the leak is far worse than Taylor, or the government, has publicly reported during a secretive response to the slow-motion spill. The AP’s review of more than 2,300 Coast Guard pollution reports since 2008 showed a dramatic spike in sheen sizes and oil volumes since Sept. 1, 2014. That reported increase came just after federal regulators held a workshop last August to improve the accuracy of Taylor’s slick estimates and started sending government observers on a Taylor contractor’s daily flights over the site. Presented with AP’s findings, the Coast Guard provided a new leak estimate that is about 20 times greater than one recently touted by the company. In a February 2015 court filing, Taylor cited a year-old estimate that oil was leaking at a rate of less than 4 gallons per day. [more]

US agencies fear Gulf oil spill could persist 100 years or more if unchecked