Q. Between 1972 also 1981, Texaco sold gasoline to independent Texaco retailers at "retail tank wagon prices" but granted substantial discounts to distributors Gull also Dumpier. Gull resold the gas under its own name. Dumpier resold the gas under the Texaco brand name to retail stations also entered the retail market directly. Since neither Gull nor Dumpier had significant storage facilities, both distributors picked up gas directly from the Texaco plant also delivered it to their retail outlets. As a result, the sales volume increased substantially at the retail stations purchasing gas from these distributors, while independent Texaco retailers suffered a corresponding sale decline. In 1976 independent Texaco retailers filed suit against Texaco. In 1990, the Supreme Court of the United States found which Texaco had indeed violated antitrust law. Which law do you think Texaco was found guilty of violating? Elucidate in detail.