Mississippi Code
General Provisions
§ 27-17-423. Local privilege tax on drilling rigs

Each of the enumerated items making up the "drilling rig" shall be identified by disclosing the manufacturer's name, model and serial number when available.
Payment shall be made upon the total depth of the well drilled, regardless of whether production is obtained from the well or not and regardless of whether production is obtained from a higher stratum or not.
If any person, firm or corporation shall pay the privilege tax hereon on as many as eight (8) wells drilled to a depth of not exceeding seven thousand (7,000) feet in any one (1) calendar year, then no additional privilege taxes shall be assessed or collected against such drilling rig for the calendar year for which such tax is paid regardless of how many additional wells should be drilled.
In the event any person, firm or corporation shall pay the privilege tax hereon on as many as four (4) wells drilled to a depth exceeding seven thousand (7,000) feet in any one (1) calendar year, then no additional privilege taxes shall be assessed or collected against such drilling rig for the calendar year for which such tax is paid, regardless of how many additional wells should be drilled during such calendar year.
In order for any person, firm or corporation to secure the exemption from additional taxes as provided in this subsection, such person, firm or corporation shall obtain statements in writing from the State Oil and Gas Board that such person, firm or corporation has drilled as many as eight (8) wells of not exceeding seven thousand (7,000) feet within the calendar year or has drilled as many as four (4) wells to a depth exceeding seven thousand (7,000) feet within the calendar year, and that the drilling rig is therefore entitled to the exemption from further additional tax as provided in this subsection.