Land or water resources have been adversely affected by past coal mining practices; and the adverse effects are at a stage where, in the public interest, action to restore, reclaim, abate, control or prevent the adverse effects of past coal mining practices should be taken; and the owners of the land or water resources where entry must be made to restore, reclaim, abate, control or prevent the adverse effects of past coal mining practices are not known, or readily available; or the owners will not give permission for the state or any political subdivision to enter on the property to restore, reclaim, abate, control or prevent the adverse effects of past coal mining practices; then, on giving notice by mail to the owners of record, if known, or, if not known, by posting notice on the premises and advertising once in a newspaper of general circulation in the county in which the land lies, the Commission is entitled to enter on the property adversely affected by the past coal mining practices and any other necessary access property to do all things necessary or expedient to restore, reclaim, abate, control or prevent the adverse effects. This entry shall not be construed as an act of condemnation of property nor of trespass. The monies expended for that work and the benefits accruing to those premises entered on shall be chargeable against the land and shall mitigate or offset any claim or action brought by any owner of any interest in the premises for damages by virtue of such entry; provided, this provision is not intended to create new rights of action or eliminate existing immunities.
Okla. Stat. tit. 45, § 740.5