Shell Oil Co. v. Governor of Maryland et al.

Opinion summary

Etalia.ai summary of the majority opinion

The case addressed whether Maryland's statute, which prohibited oil producers and refiners from operating retail service stations within the state, violated the Commerce Clause of the U.S. Constitution. The law aimed to prevent vertically integrated oil companies from using their market power to disadvantage independent dealers by setting unfair prices or engaging in discriminatory practices. Shell Oil Co., along with other major oil companies, challenged this regulation as an undue burden on interstate commerce and argued that it interfered with federal interests in regulating energy markets. The Supreme Court upheld Maryland’s statute, ruling that states have a legitimate interest in maintaining competition at local levels and protecting consumers against monopolistic practices without violating federal authority over interstate commerce.

Opinion written by Justice Stevens

Decided 14 Jun 1978 · Official report

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