Okla. Stat. tit. 45, § 45-502: Maps to be corrected every six months

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.