Exhibit 99.1 DRESSER INDUSTRIES LETTERHEAD Donald R. Galletly (214/740-6757) January 28, 1994 FOR IMMEDIATE RELEASE Dresser Completes Sale of Western Atlas Interest DALLAS, TEXAS ... Dresser Industries, Inc. (NYSE: DI) announced today that it has completed the previously announced sale of its 29.5 percent interest in Western Atlas International, Inc. to Litton Industries, Inc. (NYSE: LIT). The sale price for its share was $558 million. Dresser expects to record an after-tax gain of approximately $150 million from the transaction which will be reported in the Company's first fiscal quarter ending January 31, 1994. Headquartered in Dallas, Dresser is a leading supplier of highly engineered products and services utilized in hydrocarbon energy-related activities throughout the world. ****************