United States v. Socony-Vacuum Oil Co.
Citation: 310 U.S. 150 (Supreme Court, 1940)
Facts
During the Great Depression, major oil companies formed a program to purchase “distress gasoline” from independent refiners on the spot market in order to prop up retail prices that had collapsed. The government charged the companies with conspiring to fix prices in violation of Sherman Act § 1. The defendants argued the arrangement was reasonable and necessary to stabilize a chaotic market.
Issue
Whether a horizontal agreement among competitors to raise or stabilize prices constitutes a per se violation of Sherman Act § 1, regardless of the reasonableness of the prices fixed.
Holding
Yes. The Supreme Court held that any combination formed for the purpose and with the effect of raising, depressing, fixing, pegging, or stabilizing the price of a commodity is illegal per se under the Sherman Act.
Rule
Horizontal price fixing among competitors is a per se violation of Sherman Act § 1. Courts will not inquire into whether the prices fixed are reasonable, whether the arrangement was economically justified, or whether the industry was in distress. Any agreement that tampers with price structures is illegal.
Significance
Socony-Vacuum is the foundational case establishing the per se rule against horizontal price fixing. The Court’s sweeping language — that price fixing is illegal per se without inquiry into reasonableness — set the doctrinal baseline for § 1 analysis for decades. It is the anchor case for understanding the per se category and why courts refuse to balance competitive harms against claimed efficiencies for naked price-fixing agreements.