Tranche Update on HF Sinclair Corporation's Equity Buyback Plan announced on August 16, 2023.

HF Sinclair Corporation is an independent energy company that produces and markets light products, such as gasoline, diesel fuel, jet fuel, renewable diesel and other specialty products. It has five segments: Refining, Renewables, Marketing, Lubricants & Specialties, and Midstream. The Refining segment includes the operations of its El Dorado, Tulsa, Puget Sound, Navajo, Woods Cross, Parco and Casper Refineries and Asphalt. The Renewables segment includes the operations of the Artesia, Cheyenne and Sinclair RDUs and the Artesia PTU. The Marketing segment includes branded fuel sales. The Lubricants & Specialties segment includes the operations of its Petro-Canada Lubricants, Red Giant Oil and Sonneborn businesses in addition to specialty lubricant products produced at its Tulsa West refinery. The Midstream segment includes petroleum product and crude pipelines, terminal, tankage and loading rack facilities, and refinery processing units that primarily support its refining operations.