Business Context and Reporting Period
This Form 8-K is a current report filed by MPLX LP on March 16, 2026. The filing discloses a change in the Partnership's principal accounting officer and related compensatory arrangements.
Key Financial Metrics
The filing text does not provide a clear value for revenue, profit, cash flow, margins, debt, or liquidity. This report focuses exclusively on personnel changes and does not contain financial performance data.
Material Changes
- Appointment: Erin M. Brzezinski was appointed as Vice President and Controller of MPLX GP, effective April 1, 2026.
- Departure: Rebecca L. Iten will cease serving as Vice President and Controller of MPLX GP effective April 1, 2026, though she will remain in an accounting leadership role.
- Strategic Alignment: The change is intended to align MPLX's accounting leadership with Marathon Petroleum Corporation (MPC) to strengthen financial reporting integration.
Outlook, Risks, and Management Commentary
Management Commentary: The appointment reflects a continued integration of MPLX's operations with MPC. Ms. Brzezinski will functionally report to C. Kristopher Hagedorn (MPLX GP CFO) while continuing to report to Maria A. Khoury (MPC CFO).
Compensation Structure: MPLX does not directly employ personnel; it contracts with MPC. Ms. Brzezinski will continue to receive her base salary, annual cash bonus, and long-term incentives from MPC. She remains eligible for MPC's benefit plans, including health, disability, retirement, and severance.
Risks and Contingencies: The filing states there are no other arrangements or understandings regarding the appointment and no family relationships between Ms. Brzezinski and MPLX directors or officers.
Investor Verification Checklist
- Verify the effective date of the leadership transition (April 1, 2026).
- Confirm that Ms. Brzezinski's compensation remains tied to MPC programs as described in the 2025 10-K.
- Review the 2025 10-K for detailed descriptions of the Annual Cash Bonus (ACB) and Long-Term Incentive (LTI) programs applicable to the new Controller.
- Note that MPLX relies entirely on MPC for personnel, meaning executive changes at MPC may impact MPLX operations.