Okla. Stat. tit. 45, § 45-746: Restoration of land

The operator shall restore the land affected to a condition

capable of supporting the uses which it was capable of supporting

prior to any mining, or higher or better uses of which there is

reasonable likelihood, so long as such use or uses do not present

any actual or probable hazard to public health or safety or of water

diminution or pollution. The permit applicant's declared proposed

land use following reclamation shall not be impractical or

unreasonable, inconsistent with applicable land use policies and

plans, involve unreasonable delay in implementation, or violate

federal, state or local law.