Texas Natural Resources Code - NAT RES § 87.097. Use of Residue Gas for Other Purposes

(a) The operator of the plant is required to use, or cause to be used, for one or more of the uses provided for sweet gas by law a quantity of the residue gas from the plant equal to the quantity of sweet gas taken into the plant for processing, less the extraction loss from the processing.

(b) The operator shall not be credited with use of residue for plant-fuel or lease-fuel operations in an amount in excess of the quantity of the residue gas found by the commission to be necessary for the efficient operation of the plant and return to the leases for fuel for lease operations.