• MPLX LP average operating margin for 2023 was 43.2%, a 5.88% increase from 2022.
• MPLX LP average operating margin for 2022 was 40.8%, a 0.89% increase from 2021.
• MPLX LP average operating margin for 2021 was 40.44%, a 531.13% 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.