More than a quarter of U.S. Gulf of Mexico oil and 16% of natural gas output remained offline in the aftermath of storm Rafael, the U.S. offshore energy regulator reported on Sunday.

Hurricane Rafael churned over open water in the Gulf of Mexico Thursday, regaining some strength after crossing over western Cuba on Wednesday.

Over 23% of crude oil production and 10% of natural gas output in the U.S. Gulf of Mexico was shut in by Hurricane Rafael, the U.S. Bureau of Safety and Environmental Enforcement said on Friday. Energy producers have evacuated dozens of offshore production platforms and shut in 408,