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To assess a refinery stock, look past revenue and headline crack spreads: read the company’s definition of refining margin, find out how throughput and operating disruptions affected results, then judge cash generation, debt and valuation across a full cycle. A benchmark crack spread is a useful reference point—not the profit a particular refinery necessarily earns.
What a crack spread tells you—and what it leaves out
A crack spread estimates the difference between crude oil or other feedstock prices and refined-product prices. It is a benchmark for conversion economics, not a refinery’s realized margin. The result at a particular company depends on the crude it processes, the products it makes, where its plants are located, operating and logistics costs, and inventory effects. Delek US explains the benchmark’s approximate nature in its 2024 Form 10-K.
That distinction helps explain why a refiner’s earnings can fall even as a benchmark spread rises: a plant may process less crude, face an unfavorable feedstock differential, experience downtime, or incur higher costs. Conversely, a company’s reported results can be affected by inventory valuation, derivatives or regulatory compliance costs that do not move in step with the benchmark.
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Read segment revenue and operating income, but do not treat revenue growth as proof that refining economics improved. Crude and product prices can lift sales dollars without increasing the value captured by the conversion process. Find the company’s stated per-barrel margin or other refining measure, then check its calculation and any reconciliation to reported financial results.
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Labels such as “gross refining margin,” “refining margin” and “adjusted EBITDA per barrel” are not interchangeable. A measure may include or exclude operating expenses, depreciation, distribution and logistics, inventory adjustments, derivatives, turnaround costs or other items. HF Sinclair, CVR Energy and Marathon Petroleum each report measures with company-specific definitions; compare the formulas, not just the labels.
| Company and period | Reported measure | How to interpret it |
|---|---|---|
| PBF Energy, fiscal 2025 | $7.72 per barrel of throughput gross refining margin; $7.89 per barrel excluding special items | These are distinct PBF measures. PBF also reported $7.51 per barrel for 2024 for the stated gross refining margin comparison. Read the company’s definition and special-item treatment before comparing. |
| Marathon Petroleum, fiscal 2025 | $5.63 per barrel adjusted EBITDA for Refining & Marketing; $5.33 in 2024 and $12.94 in 2023 | This is Marathon’s defined segment measure, not the same calculation as PBF’s gross refining margin. |
| HF Sinclair, fiscal 2025 | 89.1% refinery utilization; 88.8% in 2024 and 83.7% in 2023 | Utilization describes the share of capacity used, not profitability per barrel or total earnings by itself. |
These company-reported fiscal-year figures illustrate why definitions and context matter; they are not a sector forecast or a recommendation. See PBF’s 2025 Form 10-K, Marathon’s 2025 Annual Report, and HF Sinclair’s 2025 Annual Report for the respective definitions and reporting context.
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Trace how margin turns into total earnings
Per-barrel performance is only one part of the earnings picture. Throughput—the volume of crude processed—affects how much margin can contribute to total results. A strong margin per barrel can coincide with lower earnings when throughput falls. High utilization can indicate that plants are running hard, but it does not establish that the company is earning an attractive margin or covering all costs.
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1Fix the driver behind crashes, sound loss and screen glitches2Repair Windows errors before they cause bigger problems3Scan for outdated or missing drivers - takes under a minuteUse management’s period-over-period explanation to identify what changed, rather than attributing the whole result to a single benchmark. Look for separate discussion of:
- Benchmark crack-spread changes and crude or feedstock differentials.
- Product mix and yields, which affect the value of output.
- Throughput, utilization, planned turnarounds and unplanned outages.
- Operating, maintenance, logistics and distribution costs.
- Inventory valuation and derivative gains or losses.
- Renewable Fuel Standard (RFS) compliance costs, including Renewable Identification Number (RIN) obligations.
PBF’s 2025 Form 10-K describes favorable crack-spread movements alongside lower throughput and outages, and reports RFS compliance costs. CVR Energy’s 2025 Annual Report discusses turnaround volumes, RINs, inventory valuation and derivative effects among performance drivers. Those examples show why a benchmark or headline margin alone may not explain a period’s earnings. For a more recent interim illustration of changing spreads, differentials, throughput and operating costs, see PBF’s 2026 second-quarter Form 10-Q.
Compare refinery companies on aligned measures
Before comparing two refiners, align their reporting periods and confirm what each measure includes. Differences in plant configuration, regional markets and product mix can also make a direct per-barrel comparison misleading.
- Compare realized margin and margin capture against relevant regional benchmarks.
- Account for crude slate, product yields, plant location and feedstock differentials.
- Compare throughput, utilization, outage and turnaround exposure.
- Check operating and logistics costs per barrel, using consistent definitions.
- Separate inventory, derivative and compliance effects from underlying operations where the company provides that detail.
- Assess each company’s debt, liquidity and ability to withstand weak margins.
Company disclosures can support this kind of comparison, but the figures above do not establish a current ranking of refiners.
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Read debt and valuation through the cycle
Refining is cyclical, so one unusually strong or weak period is a poor stand-in for normal earning power. When using EBITDA or another earnings measure in a valuation, state the period and metric, and consider whether it represents a peak, trough or more representative part of the cycle. A multiple based on a single period can look deceptively low when earnings are temporarily high, or unusually high when earnings are depressed.
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For debt resilience, examine the latest company filings for cash and debt balances, interest expense, maturity dates, available liquidity, capital commitments and cash generation. Consider how those resources and obligations would look during a weaker-margin period, not only when refining conditions are favorable. A valuation conclusion also requires current share-price and balance-sheet inputs; without those issuer-specific figures, no universal target multiple or buy-or-sell judgment follows from operating metrics alone.
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