43 CFR § 3509.40 - What are fractional interest prospecting permits and leases?

---
identifier: "/us/cfr/t43/s3509.40"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "43 CFR § 3509.40 - What are fractional interest prospecting permits and leases?"
title_number: 43
title_name: "Public Lands: Interior"
section_number: "3509.40"
section_name: "What are fractional interest prospecting permits and leases?"
chapter_name: "BUREAU OF LAND MANAGEMENT, DEPARTMENT OF THE INTERIOR"
subchapter_number: "C"
subchapter_name: "MINERALS MANAGEMENT (3000)"
part_number: "3500"
part_name: "LEASING OF SOLID MINERALS OTHER THAN COAL AND OIL SHALE"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "5 U.S.C. 552; 30 U.S.C. 189, 192c, and 209; 43 U.S.C. 1701  and sec. 402, Reorganization Plan No. 3 of 1946 (5 U.S.C. appendix)."
regulatory_source: "64 FR 53536, Oct. 1, 1999, unless otherwise noted."
cfr_part: "3500"
---


# 3509.40 What are fractional interest prospecting permits and leases?

They are prospecting permits and leases for parcels where the United States holds less than 100 per cent of the mineral interest of the parcel. Fractional interest leases allow development of the shared mineral interests.