Tex. Natural Resources Code § 86.095: ZONING COMMON RESERVOIRS.

(a) The commission shall zone a common reservoir if, on consideration of the evidence introduced at a hearing, it finds that either the prevention of waste or adjustment of correlative rights and opportunities, or both, as designated in Section 86.081 of this code, may be accomplished more adequately by zoning the common reservoir.

(b) If the commission zones a common reservoir, each zone shall be regarded as a separate common reservoir in making allocations of daily allowable production as provided in this chapter.

(c) If the commission zones a common reservoir, the commission:

(1) shall allocate to each zone its just proportion of the market demand for gas from the common reservoir;

(2) shall establish appropriate rules applicable to each zone;

(3) may adjust its orders to the practicable conditions that exist; and

(4) may enter any reasonable order necessary to effectuate the purposes of this chapter.

(d) The commission may segregate a sour gas area from a sweet gas area and is not required to restrict the allowable production of the sour gas zone to the same percentages that may be produced from the sweet gas zone.

Acts 1977, 65th Leg., p. 2537, ch. 871, art. I, Sec. 1, eff. Sept. 1, 1977.