WASHINGTON — A brand new federal research has discovered that an oil leak within the Gulf of Mexico that started 14 years in the past has been releasing as a lot as four,500 gallons a day, not three or 4 gallons a day because the rig proprietor has claimed.

The leak, about 12 miles off the Louisiana coast, started in 2004 when a Taylor Power Firm oil platform sank throughout Hurricane Ivan and a bundle of undersea pipes ruptured. Oil and gasoline have been seeping from the location ever since.

Taylor Power, which bought its property in 2008, is combating a federal order to cease the leak. The corporate asserts that the leaking has been slight — between 2.four and 4 gallons per day. Oil plumes from the seafloor, Taylor executives have stated, are from oil-soaked sediment that has fashioned across the platform, and any gasoline rising from the underside is the pure product of residing organisms.

“The outcomes of this research contradict these conclusions,” the report, issued on Monday by the Nationwide Oceanic and Atmospheric Administration and Florida State College, concluded.

Utilizing sonar expertise and a newly developed technique of analyzing oil and gasoline bubbles rising by way of the water, scientists decided that the plumes are the results of oil and gasoline launched from a number of wells. In addition they discovered that as many as 108 barrels of oil, or simply over four,500 gallons, have spilled into the Gulf every day because of the episode.

Need local weather information in your inbox? Sign up here for Climate Fwd:, our email newsletter.

“While it is feasible that the heavily oiled sediments in and around the erosional pit could be contributing to oil in the water column, the chemical nature and volume of oil and gas measured precludes sediments from currently being the major source of oil to the marine environment,” the report says.

The researchers also noted that their findings indicated lower levels of leakage than a handful of other recent estimates. Government attorneys in a federal court filing last year, for example, estimated that up to 30,000 gallons were leaking daily from the destroyed wells.

The study comes as the Trump administration works to roll back a key offshore-drilling safety regulation that was put in place after the 2010 Deepwater Horizon explosion in the Gulf of Mexico. That disaster, the worst oil spill in United States history, killed 11 people and released an estimated 4.9 million barrels into the sea.

The administration also has moved to significantly expand offshore drilling in United States waters. Last year, the Interior Department proposed opening almost the country’s entire coastline to drilling, although that plan now faces delays while court challenges are addressed.

The Taylor Energy spill had remained largely out of the national spotlight until researchers monitoring satellite images of the Deepwater Horizon zone noticed “persistent oil slicks that appeared unrelated to the 2010 spill,” according to the report.

Taylor Energy said in a statement that it had not been able to study the underlying data in the new government report and that the company wanted “verifiable scientific data about the leak and a scientifically and environmentally sound solution.”

Daniel Jacobs, an associate professor of management at Loyola Marymount University in Los Angeles who wrote “BP Blowout: Inside the Gulf Oil Disaster,” said the findings showed that the Trump administration “should be treading lightly” on its aggressive efforts in favor of drilling.

“This is an unresolved, ongoing leak 14 years later,” Mr. Jacobs said. “This is yet another indication that we are not ready to expand offshore drilling.”

For more news on climate and the environment, follow @NYTClimate on Twitter.

LEAVE A REPLY

Please enter your comment!
Please enter your name here