Okla. Stat. tit. 52, § 52-51: Oil companies must comply with statute - "Petroleum"

defined.

Every corporation, joint stock company, partnership or other

person, exercising or claiming the right to carry or transport crude

oil or petroleum, or any of the products thereof, by or through

pipelines, for hire or otherwise, or exercising or claiming the

right to engage in the business of producing crude oil or petroleum,

or of refining it, or manufacturing any of the products thereof, or

of storing crude oil or petroleum produced by it, or any other

person, or engaging in the business of buying, selling or dealing in

crude oil or petroleum, within the limits of this state, shall not

have or possess the right to conduct or engage in said business or

operation, in whole or in part, as above described, or have or

possess the right to locate, maintain, or operate the necessary

pipelines, fixtures and equipment thereunto belonging, or used in

connection therewith, concerning the said business of carrying or

transporting crude oil or petroleum as aforesaid, on, over, along,

across, through, in or under any present or future highway, or part

thereof, within this state, or have or possess the right of eminent

domain, or any other rights, concerning said business or operations,

in whole or in part, except as authorized by and subject to the

provisions of this article, and except such rights as may already

exist which are valid, vested, and incapable of revocation by any

law of this state or of the United States. The word "petroleum" as

used herein means all crude oil and its manufactured products, not

including natural gas.