HollyFrontier was an independent petroleum refiner and marketer that produced and marketed gasoline, diesel fuel, jet fuel, asphalt, and specialty lubricant products before becoming HF Sinclair.
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Updated
May 20, 2026
HollyFrontier was an independent petroleum refiner and marketer that produced and marketed gasoline, diesel fuel, jet fuel, asphalt, and specialty lubricant products before becoming HF Sinclair.
SemGroup was a midstream service provider that gathered, transported, stored, processed, and marketed crude oil, refined products, and natural gas liquids before being acquired by Energy Transfer.
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