Miss. Code Ann. § 53-3-203

Any law enforcement officer or the supervisor of the State Oil and Gas Board or his designated employees may at any time inspect and for probable cause impound oil or any substance as defined in Section 53-3-201 and the vehicle transporting it, pending being furnished with the documentation as required by Section 53-3-201 or other proof of ownership or right to possession, whenever (a) he has reasonable cause to examine the documentation, (b) the transporter lacks such documentation or the documentation is substantially at variance with the fact, or (c) the lawful severance and maintenance tax has not been paid on any part of such product. Furthermore, any transporter who does not possess the documentation as required by Section 53-3-201 or other proof of ownership or right to possession shall be fined an amount equal to the market value of the substance being transported but not less than two thousand dollars ($2,000.00), the market value of such substance to be determined by the State Oil and Gas Board. Any such fine paid or collected shall be paid to the state treasurer for credit to the special oil and gas board fund.