(a) For purposes of this section, the following definitions apply:

1. (1) “Gross gasoline refining margin” means the difference, expressed in dollars per barrel, between the volume-weighted average price of wholesale gasoline sold by a refiner in the state and the average price of crude oil received by the refinery.
2. (2) “Net gasoline refining margin” means the gross gasoline refining margin minus the refinery’s operational costs.
3. (3) “Operational costs” means costs, expressed in dollars per barrel, necessarily incurred by the operator of a refinery in the state to produce gasoline meeting California specifications, including, but not limited to, costs of labor, electricity, natural gas, chemicals, maintenance, hydrogen, and other intermediate oil products, federal renewable identification numbers, obligation costs, capital investments, logistics costs, and additive costs.

(b) Within 30 days of the end of each calendar month, the operator of each refinery operating in the state that produces gasoline meeting California specifications shall submit to the commission a report for the refinery containing all of the following information:

1. (1) The volume, in barrels, of crude oil received in that month, separated into domestic and foreign subtotals.
2. (2) The volume-weighted average crude oil acquisition cost paid for crude oil that is received and intended to be refined during that month, separated into domestic and foreign crude oil acquisition costs.
3. (3) The volume in barrels of refined gasoline received or imported in that month from entities other than the refiner.
4. (4) The volume-weighted average cost of any refined gasoline received or imported by a refiner during that month.
5. (5) The quantity, in barrels, of wholesale gasoline meeting California specifications sold and the corresponding volume-weighted average prices, less all applicable local, state, and federal taxes, separated by unbranded rack sales, branded rack sales, bulk sales, spot pipeline sales, and dealer tankwagon (DTW) sales in that month.
6. (6) Separate quantification of the volume-weighted fees or estimated valuations of costs embedded in all wholesale gasoline sales associated with the low-carbon fuel standard (LCFS) and associated with the cap and trade cap-at-the-rack (CAR) program, for each volume-weighted average price for: (A) unbranded rack sales, (B) branded rack sales, (C) bulk sales, (D) spot pipeline sales, and (E) DTW sales, in that month.
7. (7) The gross gasoline refining margin per barrel of gasoline sold in that month.
8. (8) The operational costs per barrel of gasoline sold in that month, including a complete description and amount of each category of cost identified in paragraph (3) of subdivision (a) and any other category of cost.
9. (9) The net gasoline refining margin per barrel of gasoline sold in that month.

(c) Within 45 days of the end of each calendar month, the commission shall post on its internet website all of the following:

1. (1) The gross gasoline refining margin data reported pursuant to this section for that month, and any gross gasoline refining margin independently calculated by the commission, as a volume-weighted gross refining margin in aggregate for all the combined refineries in the state.
2. (2) The gross gasoline refining margin data reported for that month, and any gross gasoline refining margin independently calculated by the commission, in aggregate for each refiner with more than one refinery operating within California.
3. (3) The net gasoline refining margin data reported pursuant to this section for that month, and any net gasoline refining margin independently calculated by the commission, as a volume-weighted net refining margin in aggregate for all the combined refineries in the state.
4. (4) The net gasoline refining margin data reported for that month, and any net gasoline refining margin independently calculated by the commission, in aggregate for each refiner with more than one refinery operating within the state.
5. (5) The aggregated data submitted pursuant to paragraphs (1) through (4), inclusive, of subdivision (b) for that month.