Administrative Rules of Montana
Department 36 - NATURAL RESOURCES AND CONSERVATION
Chapter 36.22 - OIL AND GAS CONSERVATION
Subchapter 36.22.12 - Production
Rule 36.22.1201 - SURFACE EQUIPMENT

Wellhead equipment shall be installed and maintained in satisfactory condition so that static bottom-hole pressures and operating gas-oil ratios may be obtained at any time. Valves shall be installed so that pressures can be readily obtained on both casing and tubing. However, exceptions may be granted by the petroleum engineer or his authorized agent when warranted by operating practices.

82-11-111, MCA; IMP, 82-11-123, 82-11-124, MCA;