Texas Natural Resources Code - NAT RES § 85.053. Distribution, Proration, and Apportionment of Allowable Production

(a) If a rule or order of the commission limits or fixes in a pool or portion of a pool the production of oil, or the production of gas from wells producing gas only, the commission, on written complaint by an affected party or on its own initiative and after notice and an opportunity for a hearing, shall distribute, prorate, or otherwise apportion or allocate the allowable production among the various producers on a reasonable basis if the commission finds that action to be necessary to:

(b) When, as provided in Subsection (b) of Section 85.046 or Subsection (b) of Section 86.012 of this code, as amended, the commission has permitted production by commingling oil or gas or oil and gas from multiple stratigraphic or lenticular accumulations of oil or gas or oil and gas, the commission may distribute, prorate, apportion, or allocate the production of such commingled separate multiple stratigraphic or lenticular accumulations of oil or gas or oil and gas as if they were a single pool;  provided, however, that: