HF Sinclair Corporation's Board of Directors authorized a new $1.5 billion share repurchase program effective August 26, 2026. This authorization replaces the prior program, which had approximately $11 million remaining from its initial May 2024 approval. Repurchases may be conducted via open market or privately negotiated transactions, including specific provisions for purchases from REH Advisors Inc., subject to limitations and regulatory constraints. The timing and magnitude of buybacks will depend on market conditions and corporate considerations. HF Sinclair Corporation operates in the petroleum refining industry.