Okla. Stat. tit. 52 § 41
All domestic gas pipeline corporations in this state, which are now, or shall hereafter fully comply with the laws of this state, and all municipal corporations, owning or operating a gas plant, or which may hereafter own or operate a gas plant, may contract with and secure from foreign corporations, operating interstate gas pipelines, the supply of gas for said domestic gas companies. And said interstate gas pipeline companies or foreign corporations may enter into said contract and deliver said gas, upon obtaining a license from the Corporation Commission, which is hereby authorized to grant a license to do and transact that particular business of supplying domestic corporations with natural gas, and the taking out of said license and the conduct of said business with domestic pipeline companies, shall not prejudice the said interstate pipeline companies, or foreign corporations in the transaction and conducting of their interstate business; provided, the Corporation Commission may revoke said license when, in its discretion, the public interest may be best subserved thereby.
Okla. Stat. tit. 52, § 41