Chevron Corp, Royal Dutch Shell Plc and BHP Group all said workers were headed back to production platforms in the U.S.-regulated northern Gulf of Mexico.
BHP expects to complete the return of workers to its Shenzi and Neptune production platforms on Sunday, spokeswoman Judy Dane said, adding that resuming flows will depend on how quickly pipelines return to service.
It can take several days after a storm passes for energy producers to evaluate facilities for damage, return workers and restore offshore production. The companies that operate oil and gas pipelines and process the offshore output also shut ahead of the storm.
On Sunday, the U.S. Bureau of Safety and Environmental Enforcement (BSEE) said 91% of offshore crude oil production remains shut in the U.S.-regulated northern Gulf of Mexico following Hurricane Delta, which made landfall on Friday night.
In addition, 62.2% of natural gas output remains shut in the Gulf following the storm that made landfall near Creole, Louisiana, and weakened into a low-pressure system over Mississippi on Saturday.
Through Sunday, a cumulative total of 8.8 million barrels per day (bpd) of crude oil production and 8.3 billion cubic feet per day of natural gas output from the Gulf has been shut because of Hurricane Delta.
