HollyFrontier Cheyenne Refining, LLC v. Renewable Fuels Assn.

The case asks whether a small oil refinery can get a hardship exemption from the Renewable Fuel Standard after a gap in past exemptions. The Tenth Circuit said the law requires uninterrupted exemptions dating back to 2011.

The case is still pending, and oral argument has not been scheduled. The central dispute is whether an "extension" of a hardship exemption requires continuous year-to-year coverage since 2011.

The answer could affect whether small refineries must blend renewable fuels or buy credits to comply. For a refinery with tight margins, that can mean major added costs or temporary relief.

The next major step is for the Supreme Court to schedule oral argument or make another calendar move. No decision window is available yet.

The Court is being asked whether a small refinery must have continuous hardship exemptions since 2011 to qualify for another one. The dispute turns on what counts as an "extension."

Small refineries could face higher compliance costs if they cannot get exemptions after a gap. Renewable fuel producers also have a stake because exemptions can reduce blending demand.

Watch for the Court to set oral argument or make another scheduling move. There is no announced decision timeline yet.