Another discovery in the deepwater Gulf of Mexico has been made by Mariner Energy, Inc. This find is on the Devils Tower prospect in Mississippi Canyon Block 773, located approximately 140 miles southeast of New Orleans. The discovery well was drilled in 5,610 feet of water to a total depth of 15,625 feet by Global Marine's drillship, Celtic Sea. Casing was run in the well and the well was temporarily suspended. Appraisal drilling is expected to begin the second quarter of 2000. Mariner, as the operator, holds a 50 percent working interest in the discovery, CNG Producing Company holds 30 percent, Pioneer Natural Resources Company holds 15.83375 percent and Westport Oil and Gas Company, Inc. holds the remaining 4.16625 percent.