---
kind: "unit"
title: "43"
title_heading: "Public Lands: Interior"
key: "subtB/chII/subchC/part3140"
level: "part"
label: "Part 3140"
heading: "Leasing in Special Tar Sand Areas"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/43/subtB-chII-subchC-part3140"
sections_count: 46
---

# Part 3140 — Leasing in Special Tar Sand Areas

Title 43 C.F.R. — Public Lands: Interior › Subtitle B — Regulations Relating to Public Lands › Chapter II — Bureau of Land Management, Department of the Interior › Subchapter C — Minerals Management (3000)

## Contents

- [Subpart 3140 — Conversion of Existing Oil and Gas Leases and Valid Claims Based on Mineral Locations](/cfr/43/subtB-chII-subchC-part3140-subpart3140.md)
- [Subpart 3141 — Leasing in Special Tar Sand Areas](/cfr/43/subtB-chII-subchC-part3140-subpart3141.md)
- [Subpart 3142 — Paying Quantities/Diligent Development for Combined Hydrocarbon and Tar Sand Leases](/cfr/43/subtB-chII-subchC-part3140-subpart3142.md)