Frank M Semple

Retired chairman, president and CEO of Mark West Energy Partners L.P.

Semple retired in 2016 as chairman, president and CEO of Mark West Energy Partners L.P., joining the company in 2003. Previously, he was COO of WilTel Communications, SVP and general manager of Williams Natural Gas Company, and VP of operations and engineering for Northwest Pipeline Company. He currently serves on the board of Choctaw Global LLC, an affiliate of the Choctaw Nation of Oklahoma.

Relationships Interlocks Giving Data

Business Positions

MarkWest Energy Partners LP

• Chairman, President & CEO [+1]

• CEO ('08→?)

Marathon Petroleum Corporation Parent company; the nation's fourth-largest refiner

• Vice Chairman ('15→?)

Board Memberships

Marathon Oil Corporation Int'l energy co. engaged in oil/gas exploration, production, transportation, and marketing

• Board member ('21→?)

MarkWest Energy Partners LP

• Board Member

Updated about 3 years ago

Types	Person, Business Person
Gender	Male
Aliases	Mr Frank M. Semple

Sec - Edgar

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