CHAPTER 3A—LEASES AND PROSPECTING PERMITS (§§ 181—287)
- SUBCHAPTER I—GENERAL PROVISIONS (§§ 181—196)
- SUBCHAPTER II—COAL (§§ 201—209)
- SUBCHAPTER III—PHOSPHATES (§§ 211—214)
- SUBCHAPTER IV—OIL AND GAS (§§ 221_to_222i—237)
- SUBCHAPTER V—OIL SHALE (§§ 241—242)
- SUBCHAPTER VI—ALASKA OIL PROVISO (§ 251)
- SUBCHAPTER VII—SODIUM (§§ 261—263)
- SUBCHAPTER VIII—SULPHUR (§§ 271—276)
- SUBCHAPTER IX—POTASH (§§ 281—287)