Oil production has begun at Shell and Chevron’s Whale platform in the Gulf of Mexico, the companies announced January 9. The platform sits in more than 8,600 feet of water in Alaminos Canyon Block 773, about 200 miles southwest of Houston. Shell holds a 60% interest in the project and serves as the operator, while Chevron holds 40%.

The Whale discovery was made in 2017. As we noted in Last Great American Whale?, the relatively short span between discovery and first oil was made possible, in part, by Shell’s decision to use a simplified design for the four-column, semi-submersible host: 99% of the hull design and 80% of the topsides (see photo below) were replicated from the company’s Vito project, which began production in 2023.

The first phase of the Whale development is expected to involve up to 15 wells. Like Vito, Whale at its peak is expected to produce 100,000 barrels of oil equivalent per day (100 Mboe/d). Shell said the Whale discovery has 480 MMboe of recoverable resources.

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