Exhibit 99.1 DRESSER INDUSTRIES LETTERHEAD Donald R. Galletly (214/740-6757) January 21, 1994 FOR IMMEDIATE RELEASE Dresser Industries Merger with Baroid Completed DALLAS, TEXAS ... Dresser Industries, Inc. (NYSE: DI) announced today that the merger with Baroid Corporation became effective today at 11 a.m. EDT. Baroid is now a wholly owned subsidiary of Dresser Industries. Headquartered in Dallas, Dresser is a leading supplier of highly engineered products and services utilized in hydrocarbon energy- related activities throughout the world. ****************