Shell starts production from Dover subsea tieback in Gulf of Mexico
Shell Offshore Inc. started production at the Dover development in the Gulf of Mexico’s Mississippi Canyon about 170 miles offshore Louisiana.
Dover, which lies in about 7,500 ft of water, is the second subsea tieback connecting new wells to the Shell-operated (79%) Appomattox deepwater production hub. Rydberg, online in February 2024, was the first (OGJ Online, Feb. 23, 2024).
Dover was Shell's sixth oil discovery in the Norphlet geologic play in the deepwater US Gulf of Mexico. The 2018 discovery well was drilled to a total vertical depth of 29,000 ft and encountered 800 net ft of pay in the Jurrassic Norphlet.
Dover development calls for up to two wells were connected through a 17.5-mile flowline and riser. It is expected to produce 20,000 boe/d at peak rate and is currently estimated to contain 44.5 MMboe 2P recoverable resources.
Shell holds 100% working interest in Dover.

Alex Procyk | Upstream Editor
Alex Procyk is Upstream Editor at Oil & Gas Journal. He has also served as a principal technical professional at Halliburton and as a completion engineer at ConocoPhillips. He holds a BS in chemistry (1987) from Kent State University and a PhD in chemistry (1992) from Carnegie Mellon University. He is a member of the Society of Petroleum Engineers (SPE).