Appaloosa is an offshore oil field located in the Mississippi Canyon blocks 459, 460, 503, and 504 of the United States sector of the Gulf of Mexico.
[1] Eni submitted an application to drill, complete and test five exploratory wells on the Appaloosa prospect in 2005.
In May 2008, oil was discovered by the Transocean-owned semi-submersible drilling rig GSF Celtic Sea The field development was approved in December 2008.
[1] In June 2010, Eni stopped development of the project due to the Deepwater Horizon oil spill.
Offshore installations are done by Technip's deepwater pipe-laying ship Deep Blue.