• ONEOK average operating margin for 2023 was 20.14%, a 58.83% increase from 2022.
• ONEOK average operating margin for 2022 was 12.68%, a 33.89% increase from 2021.
• ONEOK average operating margin for 2021 was 19.18%, a 28.64% decline 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.