Upon approval and acceptance by the Secretary to the Commissioners and receipt of the balance of the first year's rent, the lessee(s)' copy of the lease contract will be mailed to the successful bidder and Lessor's copy retained by the Land Office. Failure to execute and return copies of the lease contract shall operate to cancel award and deposit will be forfeited as liquidated damages at the option of the Commissioners.
Okla. Admin. Code § 385:25-1-24