MPLX Elects Two New Directors to General Partner’s Board

MPLX LP said in a filing that Micheal G. Dunn and Bruce L. Niemeyer have been elected to the board of directors of MPLX GP LLC, the general partner of MPLX, both effective Nov. 1, 2026.

Dunn brings more than 35 years of experience in the natural gas and midstream industries, including leadership roles in operations, engineering, construction, project-management and information technology. He most recently served as executive vice president and chief operating officer of The Williams Companies, retiring in 2025. He previously served as president of Kern River Gas and PacifiCorp Energy, and president and executive vice president of Questar Pipeline/Questar Corporation. Dunn is a GIP-designated director on the Columbia Pipelines Holding Company board and a past director of Williams Partners LP. He holds a Bachelor of Science in Civil Engineering from the University of Oklahoma.

Niemeyer's career spans more than 40 years in the energy industry, including leadership roles in exploration and production. At Chevron, he was responsible for its Western Hemisphere upstream business as President, Americas Exploration and Production, and previously served as Corporate Vice President, Strategy and Sustainability. He began his career at Atlantic Richfield, where he held several leadership positions, including President of ARCO Environmental Remediation, LLC. Niemeyer holds a Bachelor of Science in Petroleum Engineering from the Colorado School of Mines.

MPLX Chairman, President and CEO Maryann Mannen said Dunn and Niemeyer bring an extraordinary breadth of expertise to the board, adding that their experiences will be invaluable as the company executes growth strategies across its value chains. MPLX lead director Christopher Helms said their insights and strategic acumen will be a great fit for the partnership as it continues creating long-term value for unitholders. The addition of Niemeyer and Dunn brings the MPLX board to 12 directors.

Finazon · prior-day close, indicative (IEX-derived, not the official close) · Oct 29, 2026