Why Refiners’ Profits Can Fall Even When Oil Prices Rise
Analyze refiners through product selling prices, refining margins, and inventory timing rather than crude oil prices alone. Work through a hypothetical case in which oil prices rise while margins fall.
Refiners buy crude oil and sell a range of petroleum products, so the gap between product prices and crude input costs matters more than the direction of oil prices alone. Even when crude rises, profits can fall if gasoline and diesel prices rise less or sales volumes decline. The timing of when previously purchased inventory enters the cost of sales also affects quarterly earnings.
Do not use pump prices as refiners’ selling prices
EIA materials explain that retail gasoline prices include refining, distribution, taxes, and other components as well as crude oil. Equating higher prices at the pump with higher refinery gross profit overlooks costs at intermediate stages. Company analysis should match wholesale product prices in the actual selling region with the quality and transportation terms of the crude purchased. Product mixes also differ, so rather than looking at gasoline alone, consider a basket of selling prices weighted by diesel, jet fuel, and other products.
Bridge benchmark refining margins to company operating profit
A measure that subtracts crude prices from product prices indicates the earnings environment, but it is not operating profit after all plant operating costs. Energy costs, labor, scheduled maintenance, depreciation, and utilization also matter. If maintenance reduces production during a quarter, do not assume company profits will increase by the same amount as market refining margins. Complex refineries also differ in their ability to alter product output and process cheaper crude. Logistics lead times from crude procurement to product sales matter around quarter-end as well.
Assess the recurrence of inventory effects separately
If a refiner has already purchased cheap crude when product prices rise, reported profits can look temporarily stronger. Conversely, falling selling prices while expensive inventory is being consumed create pressure. The effect depends on purchase timing, the accounting cost-flow method, and any inventory write-downs. Even when using company results that exclude inventory effects, check the adjustment’s definition and consistency across periods. It is also important not to compare consolidated operating profit, which may include petrochemicals, lubricants, and other businesses, directly with refining-segment indicators.
Worked example
Hypothetical example: For simplicity, assume the products obtained from 1 barrel of crude sell for $100, the crude costs $80, and processing costs $10. The remaining amount is $10. In the next period, the product basket sells for $105 and crude costs $90, with processing costs unchanged. The remaining amount falls to $5. Despite higher oil prices, the amount remaining per unit is halved. This illustrates the structure while omitting actual refinery yields, byproducts, and inventory costs; it is not a market refining-margin quote.
What to check
- Have you matched the regions, units, and reference dates of crude and product prices?
- Have you separated taxes and distribution costs included in retail prices?
- Have you reviewed inventory effects and changes in utilization separately?
- Have you aligned the scope of consolidated results and refining-segment results?
Sources and primary materials
This is educational material about research methods. For an actual company decision, verify the filings and primary sources for the relevant period.