DINO · CIK 1915657
What HF Sinclair Corporation told the SEC could break it.
HF Sinclair's most consequential exposure is regulatory: its refining margins ride on the Renewable Fuel Standard and on discretionary EPA decisions about small-refinery RIN waivers, which increased its adjusted refinery gross margins by $485 million in 2025. Trade policy adds a feedstock-cost risk — the February 2025 U.S. tariffs included a 10% levy on Canadian crude oil, a key feedstock for its Rocky Mountain and Mid-Continent refineries. It also flags a structural single-point dependency common to refining: its facilities often rely on a sole, dedicated source for essential utilities like steam and electricity.
3 self-disclosed vulnerabilities, pulled from its own filings, each in the company’s words, with the source. This is the risk register almost nobody reads.
In its own words
What could break it.
Regulatory & policy
- Renewable Fuel Standard / RINs — EPA small-refinery waivers (+$485M to margins)high
HF Sinclair's refining margins are materially exposed to the Renewable Fuel Standard and EPA small-refinery RIN waiver decisions — such waivers increased adjusted refinery gross margins by $485 million in 2025 — making earnings dependent on discretionary EPA policy.
“Small refinery RINs waivers granted by the EPA increased adjusted refinery gross margins by $485 million.”
- 10% U.S. tariff on Canadian crude oil (a key refinery feedstock)medium
In February 2025 the U.S. announced tariffs on Canada, Mexico and China, including a 10% tariff on Canadian crude oil — a key feedstock for HF Sinclair's Rocky Mountain/Mid-Continent refineries — raising potential input costs.
“For example, in February 2025, the U.S. administration announced tariffs on Canada, Mexico and China, including a 10% tariff on Canadian crude oil.”
SEC filing →As of 2026
Sole-source dependency
- sole/dedicated source for refinery utilities (steam, electricity)medium
As is common in refining, HF Sinclair facilities often rely on a sole, dedicated source for utilities such as steam and electricity, creating single-point dependency for essential refinery inputs.
“It is also common in the refining industry for a facility to have a sole, dedicated source for its utilities, such as steam, electricity.”
SEC filing →As of 2026
The hidden graph
Who it depends on, and who depends on it.
Relationships surfaced from filings, including ones disclosed by the other side, which is how the non-obvious ones come to light.
Its suppliers
“For year ended December 31, 2025, HF Sinclair Refining & Marketing LLC and WGR Operating, LP accounted for approximately 68.4% and 27.3% of our total revenues in Wyoming, respectively, excluding the impact of our commodity derivatives.”
Cited →
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