Okla. Stat. tit. 45 § 502
At least every six (6) months, or oftener if necessary, the operator, owner, lessee, or agent of each mine shall cause to be shown accurately on the map or plan of said mine, all the excavations made therein during the time elapsing since such excavations were last shown upon said map or plan, and all parts of said mine, which were worked out or abandoned during said elapsed period of time, shall be clearly indicated by colorings on said map or plan, and whenever any of the workings or excavations of said mine have been driven to their boundary, a correct measurement of all such workings or excavation shall be made promptly and recorded in a survey book, prior to the removal of the pillars or any part of the same from such workings or excavations.
Okla. Stat. tit. 45, § 502