26 Miss. Code. R. 2-1.12
All oil and gas wells shall be completed with a string of casing which shall be properly cemented at a sufficient depth adequately to protect the oil- or gas-bearing pool. In every case no less cement shall be used than the calculated amount necessary to fill the annular space to a point 500 feet above the shoe. Cement shall be allowed to stand at least a total of twenty-four (24) hours before drilling plug.
Before drilling the cement plug in the string of casing of any well, the casing shall be tested at a pressure in pounds per square inch calculated by multiplying the length in feet of a producing string by two-tenths (.2) with the maximum test pressure required, unless otherwise ordered by the Board, not to exceed fifteen hundred (1500) pounds per square inch.
If at the end of thirty (30) minutes the pressure gauge shows a drop of ten percent (10%) of the test pressure or more, such corrective measures must be taken as will insure that the producing string of casing is so set and cemented that it will hold the pressure for thirty (30) minutes without a drop of more than ten percent (10%) of the test pressure on the gauge.
The Board may, at its discretion, require that the operator give sufficient notice prior to conducting casing tests so that a Board representative may be present at such time as either the surface or producing casing is tested in any well.
26 Miss. Code. R. 2-1.12