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United Mine Workers of America v. Pennington

381 U.S. 657 · Decided June 7, 1965 · Supreme Court of the United States

Record summary. This page is generated from the Supreme Court Database’s coded data about the case. It describes who decided what, not the Court’s reasoning. Read the opinion itself before relying on it. Not legal advice.

At a glance

United Mine Workers of America v. Pennington was decided on June 7, 1965 unanimously (9–0). The Court reversed the lower court's decision and remanded the case. Justice Byron R. White wrote the opinion of the Court. SCDB classifies its main issue as “Union antitrust” in the Unions area.

Read the opinion

Case details

Citations
381 U.S. 657 · 85 S. Ct. 1585 · 14 L. Ed. 2d 626 · 1965 U.S. LEXIS 2207
Docket number
48
Decided
June 7, 1965
Argued
January 27, 1965
Court era
Warren Court
Decision type
Opinion of the Court (orally argued)
Disposition
Reversed and remanded
Outcome for petitioner
The petitioning party received a favorable disposition
Vote
9–0 (unanimous)
Majority opinion
Byron R. White
Opinion assigned by
Earl Warren
How the case arrived
Certiorari
Issue (SCDB)
Union antitrust
Issue area
Unions
Legal provision
Sherman Act
Type of law
Federal statute
Decision direction (SCDB)
Conservative what this means

How the Justices voted

JusticeVoteSeparate writing
Justice Hugo L. BlackConcurrence
Justice William O. DouglasConcurrenceWrote an opinion
Justice Tom C. ClarkConcurrence
Chief Justice Earl WarrenMajority
Justice John M. Harlan IISpecial concurrence
Justice William J. Brennan Jr.Majority
Justice Potter StewartSpecial concurrence
Justice Byron R. WhiteMajorityWrote an opinion
Justice Arthur J. GoldbergSpecial concurrenceWrote an opinion

Full case caption

United Mine Workers of America v. Pennington et al.

SCDB identifiers: case 1964-125, docket 1964-125-01.

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Source: Supreme Court Database, 2026 Release 01 (data file dated September 8, 2026). Imported into CaseTrail November 5, 2026. Coverage: decisions from the 1946 through 2025 Terms. Methodology · Report an error