(a) Where oil and/or other liquid hydrocarbons are produced from two or more separate reservoirs or zones and separate proration schedules are published by the Commission for each reservoir or zone, the use of common storage is authorized as long as the requirements of §3.26 and §3.27 of this title (relating to Separating Devices, Tanks, and Surface Commingling of Oil, and Gas to be Measured and Surface Commingling of Gas, respectively) are met. An operator utilizing common storage pursuant to this section shall not be required to file a separate Form P-4, Certificate of Compliance and Transportation Authority, for each reservoir or zone, but may file one form to authorize the transportation of oil or gas from all reservoirs or zones producing into common storage.
(b) A gatherer transporting oil from such common storage shall not be required to file a separate transporter's report for each separate reservoir or zone or each separate lease but shall file such report on a combined basis for the total amount of commingled oil in common storage.
(c) The operator of a lease or leases for which the Commission has authorized the use of common storage of oil produced from two or more reservoirs or zones and from two or more leases shall file Form PR, Monthly Production Report, for each separate reservoir or zone and/or for each separate lease and, in addition thereto, said operator shall file a report showing the data included on the individual reports on a combined basis for the total amount of commingled oil in common storage.

Source Note: The provisions of this §3.25 adopted to be effective January 1, 1976; amended to be effective January 30, 2007, 32 TexReg 287; amended to be effective February 25, 2019, 44 TexReg 812