John Mollenkopf

Director/Board Member at ANTERO MIDSTREAM CORPORATION

Net worth: 2 M $ as of 30/06/2026

64 year

44 connections

Industrial Services

Energy Minerals

Consumer Services

Profile

Mr. John C. Mollenkopf is an Independent Director at Antero Midstream Corp., a Chief Operating Officer & Senior Vice President at MarkWest Energy GP LLC and a Chief Operating Officer at MarkWest Hydrocarbon LLC. He is on the Board of Directors at Antero Midstream Corp. Mr. Mollenkopf was previously employed as a Chief Operating Officer & Executive Vice President by MPLX GP LLC, a Chief Operating Officer & Executive Vice President by MPLX LP, a Chief Operating Officer & Executive Vice President by MarkWest Energy Partners LP, and a Principal by Arco Oil & Gas Co. He also served on the board at Antero Midstream Partners LP. He received his undergraduate degree from the University of Colorado Boulder.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
ANTERO MIDSTREAM CORP. 0.02%	10/07/2026	106,566 ( 0.02% )	2 M $	30/06/2026

John Mollenkopf active positions

Companies	Position	Start
ANTERO MIDSTREAM CORPORATION	Director/Board Member	01/03/2019

All active positions of John Mollenkopf

Former positions of John Mollenkopf

Companies	Position	End
ANTERO MIDSTREAM PARTNERS LP	Director/Board Member	12/03/2019
MPLX LP	Chief Operating Officer	01/10/2016
MPLX GP LLC MPLX GP LLC Oil & Gas PipelinesIndustrial Services Owns, operates, develops and acquires pipelines for petroleum and energy industries	Chief Operating Officer	01/10/2016
MARKWEST ENERGY PARTNERS LP	Chief Operating Officer	04/12/2015
MarkWest Energy GP LLC MarkWest Energy GP LLC Oilfield Services/EquipmentIndustrial Services Oil And Gas Field Services Not Elsewhere Classified	Founder	01/01/2015

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Training of John Mollenkopf

Experiences
Positions held

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Inactive

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Private companies

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Connections

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Members of the board

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Linked companies

Private companies	9
MarkWest Hydrocarbon LLC MarkWest Hydrocarbon LLC Oilfield Services/EquipmentIndustrial Services Provides natural gas processing services	Industrial Services
MarkWest Energy Partners LP MarkWest Energy Partners LP Integrated OilEnergy Minerals Owns and operates natural gas midstream service businesses & provides related distribution services	Energy Minerals
Antero Midstream Partners LP Antero Midstream Partners LP Oil & Gas PipelinesIndustrial Services Operates and develops midstream gathering, compression, processing & fractionation assets	Industrial Services
MarkWest Energy GP LLC MarkWest Energy GP LLC Oilfield Services/EquipmentIndustrial Services Oil And Gas Field Services Not Elsewhere Classified	Industrial Services
Arco Oil & Gas Co. Arco Oil & Gas Co. Oil & Gas ProductionEnergy Minerals Provides oil and gas exploration & production services	Energy Minerals
MPLX LP MPLX LP Oil & Gas PipelinesIndustrial Services Owns, operates, develops and acquires pipelines and other midstream assets	Industrial Services
MPLX GP LLC MPLX GP LLC Oil & Gas PipelinesIndustrial Services Owns, operates, develops and acquires pipelines for petroleum and energy industries	Industrial Services
University of Colorado Boulder University of Colorado Boulder Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Antero Midstream Corp. Antero Midstream Corp. Oil & Gas PipelinesIndustrial Services Provides natural gas transmission and water supply & treatment services	Industrial Services