Miss. Code Ann. § 77-11-309

There shall be no transmission, sale, sale for resale, or distribution of natural, artificial, or mixed gas by an intrastate pipeline to an industrial user being served by a gas public utility holding a gas certificate of public convenience and necessity issued by the commission or to an industrial user to be located within such certificated area unless the gas public utility holding such certificate of public convenience and necessity shall have filed with the commission a statement that it is either unwilling or unable to serve said user. Provided, however, that nothing contained in this article shall prevent the sale or transmission of natural gas to an industrial user by the producer of such gas or the sale of natural gas in or within the vicinity of the field where the gas is produced.