The refiner seeks resolution on exemptions from renewable fuel mandates finalized in March, citing prolonged regulatory uncertainty.
HF Sinclair (DINO) has sued the U.S. Environmental Protection Agency over delays in deciding on exemptions from biofuel blending mandates. The rules, finalized in March, require refiners to blend renewable fuels into gasoline and diesel, but the EPA has yet to act on exemption requests.
The mandates aim to reduce carbon emissions but have faced pushback from refiners over compliance costs. Previous delays have disrupted fuel markets, with industry groups warning of supply chain disruptions. The lawsuit highlights growing frustration among refiners over regulatory uncertainty.
No immediate market reaction was reported, though legal challenges could influence future blending requirements and refining margins.