![William Hickey](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>)
William Hickey
Chief Executive Officer at
EARTHSTONE ENERGY, INC.
Net worth: 672 M $ as of 30/08/2026
Profile
William M.
Hickey is the founder of Colgate Energy LLC, founded in 2015, where the title held is Co-President & Co-Chief Executive Officer.
Current jobs include Co-Chief Executive Officer at Earthstone Energy, Inc., Co-Chief Executive Officer & Director at Permian Resources Corp.
starting in 2026, and Co-Chief Executive Officer at Permian Resources Operating LLC.
Former jobs include Co-Chief Executive Officer at Colgate Energy Partners III LLC, Co-Chief Executive Officer & Director at Permian Resources Holdings, Inc., and Associate at EnCap Investments LP.
Education includes an MBA from Southern Methodist University and an undergraduate degree from The University of Texas at Austin.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
Permian Resources Operating LLC
 Permian Resources Operating LLC Integrated OilEnergy Minerals Engage in the acquisition and development of oil and gas properties 6.11% | 30/12/2022 | 16,467,681 ( 6.11% ) | 384 M $ | 30/08/2026 |
1.66% | 23/03/2026 | 12,379,394 ( 1.66% ) | 288 M $ | 30/08/2026 |
William Hickey active positions
| Companies | Position | Start |
|---|---|---|
| EARTHSTONE ENERGY, INC. | Chief Executive Officer | - |
Colgate Energy LLC
 Colgate Energy LLC Integrated OilEnergy Minerals Provides oil exploration and production services | Chief Executive Officer | 31/12/2014 |
Permian Resources Operating LLC
Permian Resources Operating LLC Integrated OilEnergy Minerals Engage in the acquisition and development of oil and gas properties | Chief Executive Officer | - |
Former positions of William Hickey
| Companies | Position | End |
|---|---|---|
Permian Resources Corp.
 Permian Resources Corp. Integrated OilEnergy Minerals Operates crude oil and liquids-rich natural gas reserves | Chief Executive Officer | - |
EnCap Investments LP
 EnCap Investments LP Investment ManagersFinance EnCap Investments seeks investment opportunities in companies located in the United States. The firm focuses on the energy sector. It participates in early, later and growth stage capital requirements. | Private Equity Analyst | - |
Colgate Energy Partners III LLC
 Colgate Energy Partners III LLC Integrated OilEnergy Minerals Engages in oil and natural gas acquisition, development, exploration & production activities | Chief Executive Officer | - |
Training of William Hickey
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
28
1st degree connections
8
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 8 |
|---|---|
Earthstone Energy, Inc.
 Earthstone Energy, Inc. Integrated OilEnergy Minerals Engages in exploration and production of crude oil & natural gas | Energy Minerals |
EnCap Investments LP
EnCap Investments LP Investment ManagersFinance EnCap Investments seeks investment opportunities in companies located in the United States. The firm focuses on the energy sector. It participates in early, later and growth stage capital requirements. | Finance |
Southern Methodist University
 Southern Methodist University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
The University of Texas at Austin
 The University of Texas at Austin Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Permian Resources Operating LLC
Permian Resources Operating LLC Integrated OilEnergy Minerals Engage in the acquisition and development of oil and gas properties | Energy Minerals |
Colgate Energy LLC
Colgate Energy LLC Integrated OilEnergy Minerals Provides oil exploration and production services | Energy Minerals |
Permian Resources Corp.
Permian Resources Corp. Integrated OilEnergy Minerals Operates crude oil and liquids-rich natural gas reserves | Energy Minerals |
Colgate Energy Partners III LLC
Colgate Energy Partners III LLC Integrated OilEnergy Minerals Engages in oil and natural gas acquisition, development, exploration & production activities | Energy Minerals |
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