Municipalities may make contracts covering a period of years with each other relative to the purchase, sale, and distribution of gas. They may make contracts extending over a period of years with producers of gas and those engaged in the business of transporting gas through pipe lines, for the purchase of an adequate supply of gas and may own, construct, maintain, and operate the necessary gas pipe lines beyond their corporate limits to obtain the gas.
La. R.S. § 33:4166