• HF Sinclair average operating margin for 2023 was 9.28%, a 19.28% decline from 2022.
• HF Sinclair average operating margin for 2022 was 7.78%, a 241.23% increase from 2021.
• HF Sinclair average operating margin for 2021 was 2.28%, a 214% increase from 2020.

Operating margin can be defined as operating margin measurement of what proportion of a company's revenue is left over after paying for variable costs of production such as wages, raw materials, etc.