Spirit Energy 76 reports that the appraisal well drilled on the Mad Dog prospect in Green Canyon block 782 encountered 250 feet of oil pay in zones that appear to correspond to those penetrated by the discovery well. The appraisal well was drilled about 2 miles north of the discovery well and to a depth of approximately 20,268 feet. The results of a sidetrack well to the main appraisal well are under evaluation. Further appraisal drilling is needed to define the size and extent of potential recovery. In mid-2000, with the arrival of Transocean Sedco Forex's, newbuild drillship, Discoverer Spirit, Unocal will begin drilling some of the more promising ultra-deepwater prospects of Mad Dog. The Mad Dog Prospect is located in waters approximately 5,000 to 7,000 feet deep and approximately 150 miles off the coast of Louisiana in Green Canyon Blocks 825, 826 and 782. Unocal holds a 25 percent interest in the 2-1/2 block drilling unit that encompasses most of the Mad Dog structure. BP Amoco is operator, with a 64 percent interest in the well. BHP owns the remaining interest.