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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