(1) For the monthly reports described in Rule 14.8.304:

(a) Each calendar month beginning thirty days following promulgation of these rules shall be a reporting period. Monthly reports shall be postmarked no later than the twenty-fifth day following the close of the, reporting period for which the information is submitted.

(b) Refiners and natural gas plant operators shall provide historic reports of the information described in Rule 14.8.304(1) by submitting copies of the federal Refinery and Natural Gas Liquids Operations Reports (EIA, 87, EIA 64, or their predecessors) from January, 1978 through the current reporting period within thirty days following promulgation of these rules.

(c) Petroleum pipeline companies shall provide reports of the information described in Rule 14.8.304(2) from January, 1982 through the current reporting period within thirty days following promulgation of these rules.

(2) For the annual report described in Rule 14.8.305:

(a) Each calendar year, beginning January 1, 1982, shall be a reporting period. Annual reports shall be postmarked no later than March 25 of the year following the end of the reporting period for which the information is submitted.

(b) Prime petroleum suppliers shall provide historic data by submitting annual reports for calendar years 1980 and 1981 within 90 days following promulgation of these rules.