Royal Dutch Shell PLC subsidiary Shell Offshore Inc. approved the PowerNap deepwater project in the U.S. Gulf of Mexico through a final investment decision, according to an Aug. 1 news release from the parent company.

PowerNap is a subsea tie-back to the Olympus production hub, which is co-owned by operator Shell and BP Exploration & Production Inc.

The deepwater project is slated to start production in late 2021 and produce up to 35,000 barrels of oil equivalent per day at peak rates.

Production will be transported to the market on the Mars pipeline, operated by Shell Pipeline Co. LP and co-owned by Shell Midstream Partners LP and BP Midstream Partners LP.

PowerNap is estimated to have recoverable resources of more than 85 million boe.