Okla. Stat. tit. 41 § 40
When any lease on land heretofore or hereafter taken shall have become forfeited, it shall be the duty of the lessee, his, her, or their heirs, successors, assigns or legal representatives, within sixty (60) days from the date this act shall take effect, if such forfeiture occurs prior thereto, and within sixty (60) days from date of forfeiture of any and all other leases, to have such leases released from record in the county where such land is situated, without cost to the owner or owners thereof; and upon failure to make such release, the owner or owners of the land under lease may notify in writing the holder of the record title to such lease, that the same has become forfeited and demand a release of record of such lease, as herein provided; and if the owner or holder of such lease, or the officer, agent, or other persons whose duty it is to release such lease, shall fail or neglect to release same within thirty (30) days after demand to release has been made in writing, he shall be guilty of a misdemeanor and upon conviction shall be punished by a fine of not exceeding One Hundred Dollars ($100.00).
Okla. Stat. tit. 41, § 40