Hugo Black

“ Signal, allegedly because it furnished Standard with part of its vital supply of crude petroleum, was able to insist upon a discriminatorily lower price. Had Signal then sold its gas directly to the Regal stations, giving Regal stations a competitive advantage, there would be no question, even under the decision of the Court of Appeals in this case, that a clear violation of the Robinson-Patman Act had been committed. Instead of selling directly to the retailer Regal, however, Signal transferred the gasoline first to its subsidiary, Western Hyway, which in turn supplied the Regal stations. ”

“ It shall be unlawful for any person engaged in commerce, * * * either directly or indirectly, to discriminate in price between different purchasers of commodities of like grade and quality, * * * where the effect of such discrimination may be substantially to lessen competition or tend to create a monopoly in any line of commerce, or to injure, destroy, or prevent competition with any person who either grants or knowingly receives the benefit of such discrimination, or with customers of either of them * * *'. ”