Chevron reported a “major” oil discovery at the deepwater Ballymore prospect offshore the United States Gulf of Mexico. The Ballymore well reached a total measured depth of 29,194 ft and encountered more than 670 ft of net oil pay with “excellent” reservoir and fluid characteristics, the company said. A sidetrack well was being drilled to assess the discovery, which has already been deemed commercially viable. Located approximately 3 miles from Chevron’s Blind Faith platform, the company-operated prospect is situated in about 6,540 ft of water, approximately 75 miles off the Louisiana coast, and covers four blocks in the Norphlet play. Chevron has a 60% working interest in the prospect with Total holding the remaining stake.