(a) In any common reservoir in the state producing both sweet and sour gas, there shall never be produced from the common reservoir for use in carbon black manufacture a maximum daily volume of sour gas from the gas wells in excess of 750 million cubic feet.
(b) The commission shall prorate the daily volume of sour gas from gas wells among all the sour gas wells in the reservoir to prevent cognizable and preventable drainage of gas from tracts of land in the sour gas producing area segregated as to surface position and common ownership on which the sour gas wells are located.