Title 30 › CHAPTER 3A — LEASES AND PROSPECTING PERMITS › SUBCHAPTER I — GENERAL PROVISIONS › § 187a
Allows an oil or gas lease to be assigned or subleased, in whole or in part, and as a divided or undivided interest, to any person who is qualified under the law, but only with the Secretary’s final approval. The assignment takes effect on the first day of the lease month after three original signed copies are filed in the proper land office with any required bond and proof that the new party is qualified. Until the Secretary approves, the original lessee and their surety remain responsible. The Secretary may reject an assignment only for lack of qualification or insufficient bond, but may also refuse assignments that carve out a separate zone, part of a legal subdivision, or areas smaller than 640 acres outside Alaska (or 2,560 acres in Alaska) unless the assignment is the whole lease or clearly helps development. Requests must be processed quickly, and, unless unlawful, the Secretary must approve within 60 days of receipt. Anyone who gets the assignment or sublease must follow the lease terms as if they were the original lessee. Partial assignments must separate the assigned and retained parts and free the assignor from future obligations on the assigned lands. Segregated leases continue for the original primary term, but not less than two years after discovery of oil or gas in paying quantities on any other segregated part. Assignments can cover parts of leases in an extended term. For leases issued after September 2, 1960 and held beyond the primary term by production or compensatory royalty, an undeveloped segregated part continues for two years and then for as long as oil or gas is produced in paying quantities.
Full Legal Text
Mineral Lands and Mining, Source: USLM XML via OLRC
Legislative History
Reference
Citation
30 U.S.C. § 187a
Title 30, Mineral Lands and Mining
Last Updated
Sep 22, 2026
Release point: 119-110