jan 1, 1920 - Mineral Leasing Act
The Mineral Leasing Act of 1920 30 U.S.C. § 181 et seq. is a United States federal law that authorizes and governs leasing of public lands for developing deposits of coal, petroleum, natural gas and other hydrocarbons, in addition to phosphates, sodium, sulfur, and potassium in the United States.
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