![W. Keenan](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
W. Keenan
Director/Board Member at
SOLARIS ENERGY INFRASTRUCTURE, INC.
Net worth: 23 M $ as of 2026-05-30
Profile
W.
Howard Keenan is the founder of Yorktown Partners LLC, founded in 1997, serving as Founding Partner.
Current jobs include Independent Director at Antero Resources Corp.
since 2004, Director at Armstrong Energy Holdings, Inc. since 2017, Director at Antero Resources Finance Corp., Director at CIMA Resources LLC (Texas), Director at Armstrong Energy, Inc., Independent Director at Antero Midstream Corp.
since 2019, Director at Coral Sea Co. Investment Partners LP, Independent Director at Solaris Energy Infrastructure, Inc. since 2017, and Director at AMGP GP LLC since 2017.
Former jobs include Independent Director at GeoMet, Inc. from 2000 to 2012, Independent Director at Antero Midstream Partners LP from 2004 to 2019, Director at Antero Resources LLC, Independent Director at Concho Resources, Inc. from 2011 to 2013, Director at Concho Oil & Gas LLC, Director at Concho Equity Holdings LLC in 2006, Director at Concho Resources, Inc., Independent Director at Aris Water Solutions, Inc. from 2021 to 2025, Director at Cinco Resources, Inc., Director at Ramaco Resources, Inc. from 2016 to 2019, Independent Director at MNRL Sub, Inc. from 2013 to 2022, and Principal at Dillon, Read & Co., Inc. from 1975 to 1997.
Education includes undergraduate degree from Harvard College and MBAistration from Harvard Business School, conferred in 1975.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-04-12 | 371,321 ( 0.12% ) | 13 M $ | 2026-05-30 | |
| 2026-03-19 | 89,050 ( 0.17% ) | 6 M $ | 2026-05-30 | |
| 2026-04-12 | 155,784 ( 0.03% ) | 3 M $ | 2026-05-30 |
W. Keenan active positions
| Companies | Position | Start |
|---|---|---|
| ANTERO RESOURCES CORPORATION | Director/Board Member | 2003-12-31 |
| ANTERO MIDSTREAM CORPORATION | Director/Board Member | 2019-02-28 |
| SOLARIS ENERGY INFRASTRUCTURE, INC. | Director/Board Member | 2017-05-10 |
Armstrong Energy Holdings, Inc.
 Armstrong Energy Holdings, Inc. CoalEnergy Minerals Engages in coal mining | Director/Board Member | 2017-08-27 |
Yorktown Partners LLC
 Yorktown Partners LLC Investment ManagersFinance Yorktown Partners invests in companies located in North America. The firm focuses on midstream & infrastructure, manufacturing & services, metals & mining, renewables and storage, and oil & gas exploration and production. It participates in later stage capital transactions. | Founder | 1997-08-31 |
AMGP GP LLC
 AMGP GP LLC Financial ConglomeratesFinance Operates as an investment firm | Director/Board Member | 2017-03-31 |
Coral Sea Co. Investment Partners LP
 Coral Sea Co. Investment Partners LP Investment ManagersFinance Functions as investment fund | Director/Board Member | - |
Armstrong Energy, Inc.
 Armstrong Energy, Inc. CoalEnergy Minerals Engages in the exploration of thermal coal from surface and underground mines | Director/Board Member | - |
CIMA Resources LLC (Texas)
 CIMA Resources LLC (Texas) Oil & Gas ProductionEnergy Minerals Provides oil and gas exploration services | Director/Board Member | - |
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Former positions of W. Keenan
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Training of W. Keenan
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
74
1st degree connections
24
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 24 |
|---|---|
Yorktown Partners LLC
Yorktown Partners LLC Investment ManagersFinance Yorktown Partners invests in companies located in North America. The firm focuses on midstream & infrastructure, manufacturing & services, metals & mining, renewables and storage, and oil & gas exploration and production. It participates in later stage capital transactions. | Finance |
Antero Resources Corp.
 Antero Resources Corp. Oil & Gas ProductionEnergy Minerals Engages in the development, production, exploration and acquisition of natural gas and oil properties | Energy Minerals |
GeoMet, Inc.
 GeoMet, Inc. Oil & Gas ProductionEnergy Minerals Explores crude petroleum and natural gas | Energy Minerals |
Antero Midstream Partners LP
 Antero Midstream Partners LP Oil & Gas PipelinesIndustrial Services Operates and develops midstream gathering, compression, processing and fractionation assets | Industrial Services |
Antero Resources LLC
 Antero Resources LLC Gas DistributorsUtilities Acquires, explores, develops and produces natural gas resources | Utilities |
Armstrong Energy Holdings, Inc.
Armstrong Energy Holdings, Inc. CoalEnergy Minerals Engages in coal mining | Energy Minerals |
Dillon, Read & Co., Inc.
 Dillon, Read & Co., Inc. Investment Banks/BrokersFinance Provides brokerage services | Finance |
Concho Resources, Inc.
 Concho Resources, Inc. Integrated OilEnergy Minerals Acquires, explores, develops and produces oil & natural gas resources | Energy Minerals |
Concho Oil & Gas LLC
 Concho Oil & Gas LLC Part of ConocoPhillips, Concho Oil & Gas LLC is an exploration and production (E&P) company that explores, develops, and produces crude oil and natural gas. The company is based in Midland, TX. It is one of the largest independent E&P companies in the world, with operations in 13 countries. The company's 10,000 employees work together to find and produce oil and gas resources that power civilization. Concho Oil & Gas LLC is committed to safe and responsible development that helps achieve economic growth, preserves and creates jobs, and ensures quality of life. The company is focused on sustainably meeting energy demand while creating lasting value for employees, communities, and shareholders. | |
Concho Equity Holdings LLC | |
Concho Resources, Inc. /Old/ | |
Antero Resources Finance Corp.
 Antero Resources Finance Corp. Finance/Rental/LeasingFinance Acts as a financing subsidiary/Special purpose entity | Finance |
Cinco Resources, Inc.
 Cinco Resources, Inc. Oil & Gas ProductionEnergy Minerals Engages in the acquisition and development of unconventional oil and natural gas resources | Energy Minerals |
CIMA Resources LLC (Texas)
CIMA Resources LLC (Texas) Oil & Gas ProductionEnergy Minerals Provides oil and gas exploration services | Energy Minerals |
Armstrong Energy, Inc.
Armstrong Energy, Inc. CoalEnergy Minerals Engages in the exploration of thermal coal from surface and underground mines | Energy Minerals |
Harvard Business School
 Harvard Business School Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Harvard College
 Harvard College 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 |
Ramaco Resources, Inc.
 Ramaco Resources, Inc. CoalEnergy Minerals Develops coal mining properties | Energy Minerals |
Coral Sea Co. Investment Partners LP
Coral Sea Co. Investment Partners LP Investment ManagersFinance Functions as investment fund | Finance |
Solaris Energy Infrastructure, Inc.
 Solaris Energy Infrastructure, Inc. Oilfield Services/EquipmentIndustrial Services Provides power generation and distribution equipment repair & maintenance and logistics services for oil and natural gas sectors | Industrial Services |
AMGP GP LLC
AMGP GP LLC Financial ConglomeratesFinance Operates as an investment firm | Finance |
MNRL Sub, Inc.
 MNRL Sub, Inc. Investment Trusts/Mutual FundsMiscellaneous Owns royalty interests in oil and gas properties | Miscellaneous |
Aris Water Solutions, Inc.
 Aris Water Solutions, Inc. Oil & Gas ProductionEnergy Minerals Provides water, natural gas and NGLs gathering, compressing, treating, processing and transporting services | Energy Minerals |
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