01—Abstract
Summary
Summary of the 8-K filed March 18, 2026. Cited figures are marked; the original filing is the authoritative source.
MPLX LP's Form 8-K filing on March 18, 2026, announces a key change in its accounting leadership.
Effective April 1, 2026, Erin M. Brzezinski has been appointed as the Vice President and Controller of MPLX GP, the general partner of MPLX, and will serve as MPLX's principal accounting officer. This appointment is part of an ongoing effort to further align MPLX's accounting functions with its parent, Marathon Petroleum Corporation (MPC).
Ms. Brzezinski brings extensive experience, most recently serving as the principal accounting officer and Vice President and Controller at MPC since January 2024. Her background includes significant roles in technical accounting and assurance at MPC and PricewaterhouseCoopers LLP. Rebecca L.
Iten, the outgoing Vice President and Controller, will transition to another accounting leadership role within MPLX, ensuring continuity. Investors should note that Ms. Brzezinski will continue to receive her compensation and benefits directly from MPC, as MPLX utilizes MPC for its personnel needs.
02—Key points
Key Highlights
- Appointment of Erin M. Brzezinski as Vice President and Controller of MPLX GP, effective April 1, 2026.
- Ms. Brzezinski will also serve as MPLX LP's principal accounting officer.
- This change aims to strengthen the integration of MPLX's financial reporting and technical accounting with Marathon Petroleum Corporation (MPC).
- Ms. Brzezinski currently holds the principal accounting officer role at MPC and will continue to do so.
- Rebecca L. Iten is transitioning from her role as Vice President and Controller but will remain in an accounting leadership position at MPLX.
- Ms. Brzezinski's compensation and benefits will continue to be provided by MPC.
- No undisclosed arrangements or family relationships exist between Ms. Brzezinski and MPLX directors or executive officers.
03—Questions
Frequently Asked Questions
Who is the new principal accounting officer for MPLX?
Erin M. Brzezinski has been appointed as the new Vice President and Controller of MPLX GP and will serve as MPLX LP's principal accounting officer, effective April 1, 2026.
Why is this change in accounting leadership happening?
The change is intended to further align MPLX's accounting leadership and operations with Marathon Petroleum Corporation's (MPC) accounting function, thereby strengthening the integration of financial reporting and technical accounting between the two entities.
What is the impact on the previous principal accounting officer, Rebecca L. Iten?
Rebecca L. Iten will cease to serve as Vice President and Controller of MPLX GP effective April 1, 2026, but she will continue to serve in an accounting leadership role for MPLX, ensuring a smooth transition and continuity of expertise.
Will Ms. Brzezinski's compensation be paid by MPLX?
No, Ms. Brzezinski will continue to receive her annual base salary from MPC and participate in MPC's compensation and benefit programs. MPLX LP contracts with MPC for personnel services, and these individuals remain employees of MPC or its subsidiaries.
04—Continue