Okla. Stat. tit. 52, § 244

Before any person, firm or corporation shall have, possess, enjoy or exercise the right of eminent domain, right-of-way, right to locate, maintain, construct or operate pipelines, fixtures, or equipments belonging thereto or used in connection therewith, for the carrying or transportation of natural gas, whether for hire or otherwise, or shall have the right to engage in the business of purchasing, piping, or transporting natural gas, as a public service, or otherwise, such person, firm or corporation, shall file in the office of the Corporation Commission a proper and explicit authorized acceptance of the provisions of this act.