(a) Application for leases shall be made to the superintendent having jurisdiction over the lands.

(b) Indian mineral owners may request the Secretary to prepare, advertise and negotiate mineral leases on their behalf. Leases for minerals shall be advertised for bids as prescribed in this section unless one or more of the Indian mineral owners of a tract sought for lease request the Secretary to negotiate for a lease on their behalf without advertising. Unless the Secretary decides that negotiation of a mineral lease is in the best interests of the Indian mineral owners, he shall use the following procedure for leasing:

(1) Leases shall be advertised to receive optimum competition for bonus consideration, under sealed bid, oral auction, or a combination of both. Notice of such advertisement shall be published in at least one local newspaper and in one trade publication at least thirty (30) days in advance of sale. If applicable, such notice must identify the reservation within which the tracts to be leased are found. No specific description of the tracts to be leased need be published. Specific description of such tracts shall be available at the office of the superintendent and/or area director upon request. The complete text of the advertisement, including a specific description, shall be mailed to each person listed on the appropriate agency or area mailing list. Individuals and companies interested in receiving advertisements on lease sales should send their mailing information to the appropriate agency or area office for future reference.

(2) The advertisement shall offer the tracts to a responsible bidder offering the highest bonus. The Secretary shall establish the rental and royalty rates which shall be stated in the advertisement and will not be subject to negotiation. The advertisement shall provide that the Secretary reserves the right to reject any or all bids, and that acceptance of the lease bid by or on behalf of the Indian mineral owner is required. The requirements under § 212.21 are applicable to the acceptance of a lease bid.

(3) Each sealed bid must be accompanied by a cashier's check, certified check or postal money order, or any combination thereof, payable to the payee designated in the advertisement, in an amount not less than 25 percent of the bonus bid, which shall be returned if that bid is not accepted.

(4) A successful oral auction bidder will be allowed five (5) working days to remit the required 25 percent deposit of the bonus bid.

(5) A successful bidder shall, within thirty (30) days after notification of the bid award, remit to the Secretary the balance of the bonus, the first year's rental, a $75 filing fee, its prorated share of the advertising costs as determined by the Bureau of Indian Affairs, and file with the Secretary all required bonds. The successful bidder shall also file the lease in completed form, signed by the Indian mineral owner(s), at that time. However, for good reasons, the Secretary may grant extensions of time in thirty (30) day increments for filing of the lease and all required bonds, provided that additional extension requests are submitted and approved prior to the expiration of the original thirty (30) days or the previously granted extension. Failure on the part of the bidder to take all reasonable actions necessary to comply with the foregoing shall result in forfeiture of the required payment of 25 percent of any bonus bid for the use and benefit of the Indian mineral owner.

(6) If no satisfactory bid is received, or if the accepted bidder fails to complete all requirements necessary for approval of the lease, or if the Secretary determines that it is not in the best interest of the Indian mineral owner to accept any of the bids the Secretary may re-advertise the tract for sale, or subject to the consent of the Indian mineral owner, a lease may be let through private negotiations.

(c) The Secretary shall advise the Indian mineral owner of the results of the bidding, and shall not approve the lease until the consent of the Indian mineral owner has been obtained. The requirements under § 212.21 are applicable to the approval of a mineral lease.

(a) The Secretary shall not execute a mineral lease on behalf of an Indian mineral owner, except when such owner is deceased and the heirs to or devisee of the estate have not been determined, or if determined, some or all of them cannot be located. Leases involving such interests may be executed by the Secretary, provided that the mineral interest shall have been offered for sale under the provisions of section 212.20(b) (1) through (6).

(b) The Secretary may execute leases on behalf of minors and persons who are incompetent by reason of mental incapacity; Provided, that there is no parent, guardian, conservator, or other person who has lawful authority to execute a lease on behalf of the minor or person with mental incapacity.

(c) If an owner is a life tenant, the procedures set forth in 25 CFR part 179 (Life Estates and Future Interests), shall apply.

The provisions of § 211.22 of this subchapter are applicable to leases under this part.

The provisions of § 211.23 of this subchapter are applicable to leases under this part.

The provisions of § 211.24 of this subchapter are applicable to leases under this part.

The provisions of § 211.25 of this subchapter are applicable to leases under this part.

The provisions of § 211.27 of this subchapter are applicable to leases under this part.

(a) For the purpose of promoting conservation and efficient utilization of minerals, the Secretary may approve a cooperative unit, drilling or other development plan on any leased area upon a determination that approval is advisable and in the best interest of the Indian mineral owner. For the purposes of this section, a cooperative unit, drilling or other development plan means an agreement for the development or operation of a specifically designated area as a single unit without regard to separate ownership of the land included in the agreement. Such cooperative agreements include, but are not limited to, unit agreements, communitization agreements and other types of agreements that allocate costs and benefits.

(b) The consent of the Indian mineral owner to such unit or cooperative agreement shall not be required unless such consent is specifically required in the lease.

(c) Requests for approval of cooperative agreements which comply with the requirements of all applicable rules and regulations shall be filed with the superintendent or area director.

(d) All Indian mineral owners of any right, title or interest in the mineral resources to be included in a cooperative agreement must be notified by the lessee at the time the agreement is submitted to the superintendent or area director. An affidavit from the lessee stating that a notice was mailed to each mineral owner of record for whom the superintendent or area director has an address will satisfy this notice requirement.

(e) A request for approval of a proposed cooperative agreement, and all documents incident to such agreement, must be filed with the superintendent or area director at least ninety (90) days prior to the first expiration date of any of the Indian leases in the area proposed to be covered by the cooperative agreement.

(f) Unless otherwise provided in the cooperative agreement, approval of the agreement commits each lease to the unit in the area covered by the agreement on the date approved by the Secretary or the date of first production, whichever is earlier, as long as the agreement is approved before the lease expiration date.

(g) Any lease committed in part to any such cooperative agreement shall be segregated into a separate lease or leases as to the lands committed and lands not committed to the agreement. Segregation shall be effective on the date the agreement is effective.

(h) Wells shall be drilled in conformity with a well spacing program approved by the authorized officer.

(a) Notwithstanding the provisions of any mineral lease to the contrary, the removal of all restrictions against alienation shall operate to divest the Secretary of all supervisory authority and responsibility with respect to the lease. Thereafter, all payments required to be made under the lease shall be made directly to the owner(s).

(b) In the event restrictions are removed from a part of the land included in any lease approved by the Secretary, the entire lease shall continue to be subject to the supervision of the Secretary until such times as the holder of the lease and the unrestricted Indian owner submits to the Secretary satisfactory evidence that adequate arrangements have been made to account for the mineral resources of the restricted land separately from those of the unrestricted. Thereafter, the unrestricted portion shall be relieved from the supervision of the Secretary, the lease, the regulations of this part, and all other applicable laws and regulations.

All leases for individual Indian lands approved by the Secretary under this part shall contain provisions for the relinquishment of supervision and provide for operations of the lease after such relinquishment. These leases shall contain provisions that address the following issues:

(a) Provisions of relinquishment. If the Secretary relinquishes supervision at any time during the life of the lease instrument as to all or part of the acreage subject to the lease, the Secretary shall give the Indian mineral owner and the lessee thirty (30) days written notice prior to the termination of supervision. After notice of relinquishment has been given to the lessee, the lease shall be subject to the following conditions:

(1) All rentals and royalties thereafter accruing shall be paid directly to the lessor or the lessor's successors in title, or to a trustee appointed under the provisions of paragraph (b) of this section.

(2) If, at the time supervision is relinquished by the Secretary, the lessee has made all payments then due and has fully performed all obligations on the lessee's part to be performed up to the time of such relinquishment, the bond given to secure the performance of the lease, on file in the appropriate agency or area office, shall be of no further force or effect.

(3) Should relinquishment affect only part of the lease, then the lessee may continue to conduct operations on the land covered by the lease as an entirety; Provided, that the lessee shall pay, in the manner prescribed by the lease and regulations for the benefit of lessor, the same proportion of all rentals and royalties due under the provisions of this part as the acreage retained under the supervision of the Secretary bears to the entire acreage of the lessee, and shall pay the remainder of the rentals and royalties directly to the remaining lessors or successors in title or said trustee as the case may be, as provided in paragraph (a) (1) of this section.

(b) Division of fee. If, after the execution of the lease and after the Secretary relinquishes supervision thereof, the fee of the leased land is divided into separate parcels held by different owners, or if the rental or royalty interest is divided in ownership, the obligations of the lessee shall not be modified in any manner except as specifically provided by the provisions of the lease. Notwithstanding such separate ownership, the lessee may continue to conduct operations on said premises as an entirety. Each separate owner shall receive such proportion of all rental and royalties accruing after the vesting of its title as the acreage of the fee, or rental or royalty interest, bears to the entire acreage covered by the lease; or to the entire rental or royalty interest as the case may be. If at any time after departmental supervision of the lease is relinquished, in whole or in part, to rentals and royalties, whether said parties are so entitled by virtue of undivided interest or by virtue of ownership of separate parcels of the land covered, the lessee may elect to withhold the payment of further rentals or royalties (except as the portion due the Indian lessor while under restriction), until all of said parties shall agree upon and designate a trustee in writing and in a recordable instrument to receive all payments due thereunder on behalf of said parties and their respective successors in title. Payments to said trustee shall constitute lawful payments, and the sole risk of an improper or unlawful distribution of said funds by said trustee shall rest upon the parties naming said trustee and their said respective successors in title.

The reference in this part to Indian mineral owners does not include assignments of tribal lands made pursuant to tribal constitutions or ordinances for the use of individual Indians and assignees of such lands.