John Griggs
Net worth: 7 M $ as of 31/05/2026
Net worth: 7 M $ as of 31/05/2026
John B. Griggs was the founder of Rubicon Oilfield International Ltd., founded in 2015, where the title held was Chief Financial Officer from 2015 to 2018.
Current jobs include Chief Financial Officer & Executive Vice President at Kodiak Gas Services LLC starting in 2023 and Chief Financial Officer & Executive Vice President at Kodiak Gas Services, Inc. starting in 2023.
Former jobs include Independent Director at Nuverra Environmental Solutions, Inc. from 2017 to 2021; Managing Director at CSL Capital Management LLC from 2011 to 2014; Director at Independence Oilfield Chemicals LLC; Director at Delta SubSea LLC; Senior Vice President at D.
E.
Shaw Laminar Portfolios LLC from 2005 to 2011; Member-Mergers & Acquisitions Investment Banking at Simmons & Co. International Ltd.; Executive VP-Finance & Corporate Development at Conquest Completion Services LLC from 2018 to 2021; and Chief Financial Officer at Circulus Holdings PBLLC from 2021 to 2023.
Education includes undergraduate studies at The University of Texas at Austin and an MBA from Harvard Business School.
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 09/03/2026 | 110,435 ( 0.13% ) | 7 M $ | 31/05/2026 |
| Companies | Position | Start |
|---|---|---|
| KODIAK GAS SERVICES, INC. | Director of Finance/CFO | 01/01/2023 |
Kodiak Gas Services LLC
Kodiak Gas Services LLC Oilfield Services/EquipmentIndustrial Services Provides natural gas contract compression services for oil and gas producers | Director of Finance/CFO | 01/01/2023 |
| Companies | Position | End |
|---|---|---|
Circulus Holdings PBLLC
Circulus Holdings PBLLC Chemicals: SpecialtyProcess Industries Engages in recycler of plastic waste into post-consumer resin | Director of Finance/CFO | 01/01/2023 |
Conquest Completion Services LLC
Conquest Completion Services LLC Oil & Gas ProductionEnergy Minerals Operates as an oilfield services company providing coiled tubing services, as well as surface equipment rentals | Corporate Officer/Principal | 01/06/2021 |
| NUVERRA ENVIRONMENTAL SOLUTIONS, INC. | Director/Board Member | 05/04/2021 |
Rubicon Oilfield International Ltd.
Rubicon Oilfield International Ltd. Oil & Gas ProductionEnergy Minerals Provides support activities for oil and operations | Founder | 01/06/2018 |
CSL Capital Management LLC
CSL Capital Management LLC Investment ManagersFinance CSL Capital invests companies in the United States. The firm focuses on companies operating in the fields of energy services, equipment and technology. It provides financing for growth stage capital requirements with an investment size ranging from USD 10 to 100 million. | Corporate Officer/Principal | 01/01/2014 |
Active
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Listed companies
Private companies
1st degree connections
1st degree companies
Male
Female
Members of the board
Executives
| Private companies | 13 |
|---|---|
D. E. Shaw Laminar Portfolios LLC
D. E. Shaw Laminar Portfolios LLC Investment ManagersFinance DE Shaw Laminar invests in companies located in the United States and Europe. The firm focuses on a broad range of sectors and industries. It participates in acquisitions, LBOs, recapitalizations and growth capital requirements. | Finance |
Nuverra Environmental Solutions, Inc.
Nuverra Environmental Solutions, Inc. Water UtilitiesUtilities Engages in the removal, treatment, recycling, transportation and disposal of restricted solids, fluids and hydrocarbons for E&P customers | Utilities |
The University of Texas at Austin
The University of Texas at Austin Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Simmons & Co. International Ltd.
Simmons & Co. International Ltd. Investment Banks/BrokersFinance Provides brokerage services | Finance |
CSL Capital Management LLC
CSL Capital Management LLC Investment ManagersFinance CSL Capital invests companies in the United States. The firm focuses on companies operating in the fields of energy services, equipment and technology. It provides financing for growth stage capital requirements with an investment size ranging from USD 10 to 100 million. | Finance |
Kodiak Gas Services LLC
Kodiak Gas Services LLC Oilfield Services/EquipmentIndustrial Services Provides natural gas contract compression services for oil and gas producers | Industrial Services |
Harvard Business School
Harvard Business School Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Independence Oilfield Chemicals LLC
Independence Oilfield Chemicals LLC Construction MaterialsNon-Energy Minerals Specializes in stimulation of chemical and cementing solutions | Non-Energy Minerals |
Conquest Completion Services LLC
Conquest Completion Services LLC Oil & Gas ProductionEnergy Minerals Operates as an oilfield services company providing coiled tubing services, as well as surface equipment rentals | Energy Minerals |
Rubicon Oilfield International Ltd.
Rubicon Oilfield International Ltd. Oil & Gas ProductionEnergy Minerals Provides support activities for oil and operations | Energy Minerals |
Delta SubSea LLC
Delta SubSea LLC Engineering & ConstructionIndustrial Services Provides remotely operated underwater vehicle services and solutions, consulting, engineering, and tooling solutions | Industrial Services |
Circulus Holdings PBLLC
Circulus Holdings PBLLC Chemicals: SpecialtyProcess Industries Engages in recycler of plastic waste into post-consumer resin | Process Industries |
Kodiak Gas Services, Inc.
Kodiak Gas Services, Inc. Oilfield Services/EquipmentIndustrial Services Provides compression, gas treating and cooling infrastructure services that enable the production, gathering, processing and transportation of natural gas and oil | Industrial Services |
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