Oregon Revised Statutes Mineral Resources § 520.350

(1) All natural gas in an underground reservoir utilized for underground storage, whether acquired by eminent domain or otherwise, shall at all times be the property of the natural gas company utilizing said underground storage, its heirs, successors, or assigns. In no event shall such gas be subject to the rights of the owner of the surface of the land under which said underground reservoir lies or of the owner of any mineral interest therein or of any person other than said natural gas company, its heirs, successors and assigns to release, produce, take, reduce to possessions, or otherwise interfere with or exercise any control thereof.

(2) Any right of condemnation granted for the purposes of ORS 520.340, 772.610 to 772.625 and this section shall be without prejudice to the rights of the owner of the condemned lands or of the rights and interest therein to drill or bore through the underground reservoir in such a manner as shall protect the underground reservoir against pollution and against the escape of natural gas in a manner which complies with the orders and rules of the State Department of Geology and Mineral Industries. Such condemnation shall be without prejudice to the owners of such lands or other rights or interests therein as to all other uses thereof. The additional costs of complying with rules or orders to protect the underground shall be paid by the condemnor.