![Harry Quarls](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>)
Harry Quarls
Chairman at
ESS TECH, INC.
Net worth: 731 535 $ as of 2026-09-29
Profile
Harry F.
Quarls is currently Chairman at Woodbine Holdings LLC, EP Energy LLC (since 2020), CHC Group LLC, Sunrise Oil & Gas, Inc. (Texas) (since 2020), ESS Tech, Inc. (since 2023), CHC Helicopter Support Services (US), Inc. (since 2022), and Key Energy Services, Inc. (since 2018).
Holds the positions of Director at E&P Consulting and Fairway Resources Partners II LLC, Lead Director at FlexSteel Pipeline Technologies LLC, and Independent Director at Seadrill Ltd. (since 2023).
Former roles include Executive Chairman at Ranger Oil Corp.
(2017-2018), Chairman at Trident Resources Corp.
(Alberta) (2011-2016), Vice Chairman at Green Rock Energy LLC, Chairman at US Oil Sands, Inc. (2017), Chairman at EP Energy Corp.
(2020-2022), Chairman at Woodbine Acquisition Corp.
(2011-2017), Chairman at SH 130 Concession Co. LLC (2017-2019), Chairman at MD America Energy LLC, Chairman at Mesquite Energy, Inc. (2020-2023), Independent Director at PetroQuest Energy, Inc. (2019-2020), Independent Director at Gastar Exploration LLC (2018-2019), Managing Director at Global Infrastructure Management LLC, Director at Fairway Resources, Inc. (2010-2017), Director & Managing Director at Strategy&, Director at Opal Resources LLC (2010-2019), Director at Fairway Resources LLC, Independent Director at Rosehill Resources, Inc. (2017-2020), Managing Director at Global Infrastructure Partners, Inc. (2008-2017), and Director & Managing Director-Global Energy at Booz & Co. (San Francisco) (1981-2007).
Education includes an MBA from Stanford University (1980), graduate studies at Massachusetts Institute of Technology (1975), and undergraduate studies at Tulane University (Louisiana) (1974).
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
SEADRILL LIMITED 0.03% | 2026-06-02 | 16,269 ( 0.03% ) | 726 736 $ | 2026-09-29 |
ESS TECH INC 0.07% | 2026-09-01 | 28,230 ( 0.07% ) | 4 799 $ | 2026-09-29 |
Harry Quarls active positions
| Companies | Position | Start |
|---|---|---|
| KEY ENERGY SERVICES, INC. | Chairman | 2018-05-13 |
| SEADRILL LIMITED | Director/Board Member | 2023-04-02 |
| CHC GROUP LLC | Chairman | - |
| ESS TECH, INC. | Chairman | 2023-08-28 |
FlexSteel Pipeline Technologies LLC
 FlexSteel Pipeline Technologies LLC Oilfield Services/EquipmentIndustrial Services Engages in installation of pipe products and pipeline construction projects | Director/Board Member | - |
Sunrise Oil & Gas, Inc. (Texas)
 Sunrise Oil & Gas, Inc. (Texas) Integrated OilEnergy Minerals Engages in the production of oil and gas | Chairman | 2019-12-31 |
EP Energy LLC
 EP Energy LLC Oil & Gas ProductionEnergy Minerals Provides oil and gas exploration services | Chairman | 2020-09-30 |
Fairway Resources Partners II LLC
 Fairway Resources Partners II LLC Oil & Gas ProductionEnergy Minerals Owns and operates oil and gas properties | Director/Board Member | - |
Woodbine Holdings LLC
 Woodbine Holdings LLC Oil & Gas ProductionEnergy Minerals Engages in oil and gas extraction service | Chairman | - |
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Former positions of Harry Quarls
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Education of Harry Quarls
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
78
1st degree connections
33
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 33 |
|---|---|
Key Energy Services, Inc.
 Key Energy Services, Inc. Oilfield Services/EquipmentIndustrial Services Provides oil and gas well drilling & completion services | Industrial Services |
Ranger Oil Corp.
 Ranger Oil Corp. Oil & Gas ProductionEnergy Minerals Engages in the onshore development and production of crude oil and natural gas | Energy Minerals |
PetroQuest Energy, Inc.
 PetroQuest Energy, Inc. Oil & Gas ProductionEnergy Minerals Explores and develops oil and gas properties | Energy Minerals |
Gastar Exploration LLC
 Gastar Exploration LLC Oil & Gas ProductionEnergy Minerals Explores, develops and produces natural gas, condensate and oil | Energy Minerals |
Trident Resources Corp. (Alberta)
 Trident Resources Corp. (Alberta) Gas DistributorsUtilities Provides natural gas exploration services | Utilities |
Mesquite Energy, Inc.
 Mesquite Energy, Inc. Integrated OilEnergy Minerals Operates as an oil and natural gas exploration & production company | Energy Minerals |
Stanford University
 Stanford University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Massachusetts Institute of Technology
 Massachusetts Institute of Technology Finance/Rental/LeasingFinance Functions as a College/University | Finance |
Tulane University (Louisiana)
 Tulane University (Louisiana) Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Global Infrastructure Management LLC
 Global Infrastructure Management LLC Investment ManagersFinance GIP invests in companies located across the globe. The firm targets companies operating in the fields of energy, transportation, digital infrastructure, water, waste management and infrastructure sectors. It provides financing in the form of debt & equity for buyout transactions, greenfield & brownfield projects, acquisition finance, liquidity & growth, restructuring, secondary purchases and infrastructure projects. The firm acquires controlling interest and also acts as a lead investor. | Finance |
Fairway Resources, Inc. | |
Strategy&
 Strategy& Miscellaneous Commercial ServicesCommercial Services Provides business strategy consulting services | Commercial Services |
E&P Consulting
 E&P Consulting Miscellaneous Commercial ServicesCommercial Services Provides management consulting services | Commercial Services |
Green Rock Energy LLC
 Green Rock Energy LLC Oil & Gas ProductionEnergy Minerals Engages in oil and gas exploration | Energy Minerals |
US Oil Sands, Inc.
 US Oil Sands, Inc. Integrated OilEnergy Minerals Engages in the exploration and development of oil sands properties | Energy Minerals |
EP Energy Corp.
 EP Energy Corp. Oil & Gas ProductionEnergy Minerals Operates as an oil and gas exploration and development company | Energy Minerals |
Woodbine Holdings LLC
Woodbine Holdings LLC Oil & Gas ProductionEnergy Minerals Engages in oil and gas extraction service | Energy Minerals |
Woodbine Acquisition Corp.
 Woodbine Acquisition Corp. Financial ConglomeratesFinance Investment Company Vehicle | Finance |
SH 130 Concession Co. LLC
 SH 130 Concession Co. LLC Other TransportationTransportation Operates toll gates | Transportation |
Opal Resources LLC
 Opal Resources LLC Oilfield Services/EquipmentIndustrial Services Operates oil and gas properties | Industrial Services |
FlexSteel Pipeline Technologies LLC
FlexSteel Pipeline Technologies LLC Oilfield Services/EquipmentIndustrial Services Engages in installation of pipe products and pipeline construction projects | Industrial Services |
MD America Energy LLC
 MD America Energy LLC Oil & Gas ProductionEnergy Minerals Operates as an oil and gas exploration company | Energy Minerals |
EP Energy LLC
EP Energy LLC Oil & Gas ProductionEnergy Minerals Provides oil and gas exploration services | Energy Minerals |
CHC Helicopter Support Services (US), Inc.
 CHC Helicopter Support Services (US), Inc. Wholesale DistributorsDistribution Services Wholesales and distributes transportation equipment and supplies | Distribution Services |
Fairway Resources Partners II LLC
Fairway Resources Partners II LLC Oil & Gas ProductionEnergy Minerals Owns and operates oil and gas properties | Energy Minerals |
Fairway Resources LLC
 Fairway Resources LLC Finance/Rental/LeasingFinance Fairway Resources LLC is a private company based in Southlake, TX and has subsidiaries in the United States. | Finance |
CHC Group LLC
 CHC Group LLC AirlinesTransportation Provides unmatched helicopter services | Transportation |
Rosehill Resources, Inc.
 Rosehill Resources, Inc. MiscellaneousMiscellaneous Explores for oil and natural gas | Miscellaneous |
Global Infrastructure Partners, Inc.
 Global Infrastructure Partners, Inc. Financial ConglomeratesFinance Operates an infrastructure investment firm | Finance |
Booz & Co. (San Francisco)
 Booz & Co. (San Francisco) Wholesale DistributorsDistribution Services Wholesales glass doors | Distribution Services |
Sunrise Oil & Gas, Inc. (Texas)
Sunrise Oil & Gas, Inc. (Texas) Integrated OilEnergy Minerals Engages in the production of oil and gas | Energy Minerals |
ESS Tech, Inc.
 ESS Tech, Inc. Electrical ProductsProducer Manufacturing Manufactures and commercializes iron flow batteries for commercial and utility-scale energy storage applications | Producer Manufacturing |
Seadrill Ltd.
 Seadrill Ltd. Contract DrillingIndustrial Services Provides offshore drilling services | Industrial Services |
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