495 U.S. 328 495 U.S. 328 110 S.Ct. 1884 109 L.Ed.2d 333 ATLANTIC RICHFIELD COMPANY, Petitionerv.USA PETROLEUM COMPANY. No. 88-1668. Argued Dec. 5, 1989. Decided May 14, 1990. Syllabus Petitioner Atlantic Richfield Company (ARCO), an integrated oil company, increased its retail gasoline sales and market share by encouraging its dealers to match the prices of […]