Miss. Code Ann. Section 27-65-101(1)(n) provides that the value of natural gas lawfully injected into the earth for cycling, repressuring or lifting of oil, or lawfully vented or flared in connection with the production of oil is exempt from sales tax. However, the sale of natural gas for non-industrial use, non-residential use, is taxable at the regular retail rate except as provided in Section 401.
35 Miss. Code. R. 4-06-01-402