This educational guide is based on the linked primary sources. It is not a Court publication, is not affiliated with the Court, and is not legal advice.
In brief
Overview
The case was argued on April 27, 2021 and decided on June 25, 2021.
According to Petitioners (HollyFrontier Cheyenne Refining LLC), petitioners (HollyFrontier Cheyenne Refining LLC) asked the Court to allow small refineries to obtain extensions of the Renewable Fuel Standard exemption based on hardship.
According to Petitioners (HollyFrontier Cheyenne Refining LLC), petitioners also argued that the word “extension” should be read temporally to mean an increase in the length of time of the exemption.
Renewable Fuel Producers contended that the EPA acted beyond its statutory jurisdiction by granting such extensions.
The Court issued a holding in the case.
Background and question before the Court
Renewable Fuel Producers argue that the EPA exceeded its authority by granting extensions.
What each side argues
Petitioners (HollyFrontier Cheyenne Refining LLC)
Source-limited. The record does not yet support a complete account.
Renewable Fuel Producers
Renewable Fuel Producers argue that the EPA acted in excess of its statutory jurisdiction by granting extensions to small refineries.
Federal Respondent (EPA)
Source-limited. The record does not yet support a complete account.
What happened at oral argument
What the Court decided
Why it matters
Terms to know
No glossary terms are available for this guide.
Primary sources
Read the source materials on the official site or open the immutable repository copy used for this guide.
- 2988833b92278654f332-r1-25993d3741ea8374.pdfopinion
- b32736edf2616268034c-r1-f46442e9a45dafac.pdforal argument transcript
Guide generated September 28, 2026. Automated validation accepted this version.