VLO · CIK 0001035002
What Valero Energy Corporation told the SEC could break it.
Most of what Valero flagged is regulatory and policy pressure on its refining and fuels business. The largest single hit was California: it recorded a $1.1 billion impairment ($877 million after-tax) on its California operations in 2025, citing the state's regulatory environment. On the renewable side, the picture is just as policy-driven — the EPA's proposed RFS Set II rules would raise renewable-fuel obligations for 2026-2027 while halving the credits generable from foreign feedstocks, and new 2025 tariffs plus OBBB credit restrictions directly hit its Renewable Diesel segment's imported feedstocks. Rounding out the register are physical and input constraints: ongoing water-supply challenges at its Texas refineries and corn availability for its Ethanol segment.
5 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
- California regulatory environment ($1.1B operations impairment)high
Valero recorded a $1.1 billion ($877M after-tax) asset impairment associated with its California operations in 2025, reflecting California's regulatory pressure on refining.
“However, our results were also impacted by the asset impairment loss of $1.1 billion ($877 million after taxes) associated with our operations in California, as described in Note 2 of Notes to Consolidated Financial Statements.”
SEC filing →As of 2026 - EPA RFS Set II rules (RVOs 2026-27; 50% RIN cut for foreign-feedstock fuels)medium
EPA's June 2025 proposed RFS Set II rules would raise RVOs for 2026-2027 and halve the RINs generable for fuels made from foreign feedstocks or imports, with finalization, timing, and litigation all uncertain.
“Regarding the RFS, in June 2025, the EPA announced proposed rules (RFS Set II) that would, among other things, impose increased RVOs for 2026 and 2027, particularly with respect to biomass-based diesel, while also proposing to (i) reduce by 50 percent the number of RINs that may be generated for U.S. domestically produced renewable fuels made from foreign feedstocks, as well as for imports into the U.S.”
Climate & physical
- Texas refinery water supply challengesmedium
Certain Valero refineries in Texas have experienced ongoing water-supply challenges that have driven, or are expected to drive, additional capital expenditures and ongoing costs, with risk of further challenges.
“Certain of our refineries in Texas have also recently experienced various water supply challenges that remain ongoing to various degrees and in certain instances have resulted in, or are expected to result in, additional capital expenditures and/or ongoing costs. We could experience additional water supply challenges in the future.”
SEC filing →As of 2026
Commodity & input dependence
- corn supply for Ethanol segmentmedium
Valero's Ethanol segment depends on corn, whose availability and price can be hurt by crop production reductions/delays from weather, government policy, fertilizer prices, and rail disruptions — events that have occurred periodically.
“Reductions or delays in crop production from these and other events could negatively impact the availability and price of corn for our Ethanol segment, and such events have occurred periodically.”
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 customers
“To cover our fuel needs at airports outside of Mexico, we purchase fuel from local suppliers that supply such airports, such as Chevron, Valero and British Petroleum, at prices generally based on the Platt's Oilgram Price Report applicable in the relevant region.”
Cited →
Its suppliers
“The Company had sales exceeding 10% of total revenues to the following oil and natural gas purchasers (in thousands): Sales % of Revenue As of December 31, 2025 Targa Pipeline Mid-Continent West OK LLC $ 50,896 32.6 % Plains Marketing, L.P. $ 33,551 21.5 % Valero Marketing and Supply Co $ 21,600 13.8 %”
Cited →“Our customers include many of the leading energy and utility companies in the United States, such as; Xcel Energy, Pacific Gas & Electric, Southern California Gas, Oncor Electric, Duke Energy, Sempra Energy, Williams, Hecate Energy, Consumers Energy, Dominion, Valero, D.E. Shaw Renewable Investments”
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