![Gary Halverson](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>)
Gary Halverson
Director/Board Member at
ROOSTER ENERGY LTD.
Net worth: 2 M $ as of 30/05/2026
Profile
Mr. Gary M.
Halverson is an Independent Director at Patterson-UTI Energy, Inc., a Director at Energy Alloys LLC, an Independent Director at Rooster Energy Ltd., a Senior Advisor at First Reserve Management LP and a Chairman at Petroleum Equipment Suppliers Association.
He is on the Board of Directors at Patterson-UTI Energy, Inc., Rooster Energy Ltd., American Petroleum Institute, Inc. and Well Control Institute.
Mr. Halverson was previously employed as an Advisory Board Member by Stream-Flo Industries Ltd., an Independent Director by Keane Group, Inc., an Independent Director by NexTier Oilfield Solutions LLC, a President by Surface Systems, Inc., a Vice President & General Manager by First Premium, Inc., a SVP, President-Drilling & Production Systems by Cameron International Corp., a Partner by 360 Development Partners, LLC, and an US Delegate by World Petroleum Congress.
He also served on the board at FlexSteel Pipeline Technologies LLC.
He received his undergraduate degree from Odessa College.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 30/03/2026 | 167,971 ( 0.04% ) | 2 M $ | 30/05/2026 |
Gary Halverson active positions
| Companies | Position | Start |
|---|---|---|
| ROOSTER ENERGY LTD. | Director/Board Member | 14/12/2016 |
| PATTERSON-UTI ENERGY, INC. | Director/Board Member | 31/08/2023 |
Energy Alloys LLC
 Energy Alloys LLC Oilfield Services/EquipmentIndustrial Services Engages in the provision of oilfield metals, services and solutions | Private Equity Investor | 31/12/2018 |
American Petroleum Institute, Inc.
 American Petroleum Institute, Inc. Wholesale DistributorsDistribution Services Wholesale crude petroleum and petroleum products from bulk liquid storage facilities | Director/Board Member | - |
First Reserve Management LP
 First Reserve Management LP Investment ManagersFinance First Reserve invests in middle market energy companies located in North America and Europe. The firm targets companies operating in the fields of specialty services, engineered products, logistics & distribution, critical resources and value-added infrastructure. It provides financing for later stages and buyouts with an investment size ranging from USD 100 - 500 million. It also makes co-investments. | Consultant / Advisor | 31/05/2016 |
Petroleum Equipment Suppliers Association | Chairman | - |
Well Control Institute | Director/Board Member | - |
Former positions of Gary Halverson
| Companies | Position | End |
|---|---|---|
| NEXTIER OILFIELD SOLUTIONS INC. | Director/Board Member | 31/08/2023 |
Stream-Flo Industries Ltd.
 Stream-Flo Industries Ltd. Oilfield Services/EquipmentIndustrial Services Manufactures wellhead and Christmas tree equipment, gate valves and check valves | Director/Board Member | 30/12/2021 |
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Training of Gary Halverson
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
56
1st degree connections
17
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 17 |
|---|---|
Cameron International Corp.
 Cameron International Corp. Oilfield Services/EquipmentIndustrial Services Manufactures and distributes flow equipment products & systems to oil, gas and process industries | Industrial Services |
First Reserve Management LP
First Reserve Management LP Investment ManagersFinance First Reserve invests in middle market energy companies located in North America and Europe. The firm targets companies operating in the fields of specialty services, engineered products, logistics & distribution, critical resources and value-added infrastructure. It provides financing for later stages and buyouts with an investment size ranging from USD 100 - 500 million. It also makes co-investments. | Finance |
Patterson-UTI Energy, Inc.
 Patterson-UTI Energy, Inc. Contract DrillingIndustrial Services Provides onshore contract drilling and pressure pumping services | Industrial Services |
Surface Systems, Inc.
 Surface Systems, Inc. Electronic Equipment/InstrumentsElectronic Technology Manuactures patented pavement sensing equipment, specialized weather forecasting stations, and proprietary weather forecasting software | Electronic Technology |
Energy Alloys LLC
Energy Alloys LLC Oilfield Services/EquipmentIndustrial Services Engages in the provision of oilfield metals, services and solutions | Industrial Services |
American Petroleum Institute, Inc.
American Petroleum Institute, Inc. Wholesale DistributorsDistribution Services Wholesale crude petroleum and petroleum products from bulk liquid storage facilities | Distribution Services |
Petroleum Equipment Suppliers Association | |
Stream-Flo Industries Ltd.
Stream-Flo Industries Ltd. Oilfield Services/EquipmentIndustrial Services Manufactures wellhead and Christmas tree equipment, gate valves and check valves | Industrial Services |
World Petroleum Congress | |
Rooster Energy Ltd.
 Rooster Energy Ltd. Oil & Gas ProductionEnergy Minerals Explores for oil and natural gas | Energy Minerals |
FlexSteel Pipeline Technologies LLC
 FlexSteel Pipeline Technologies LLC Oilfield Services/EquipmentIndustrial Services Engages in installation of pipe products and pipeline construction projects | Industrial Services |
Odessa College
 Odessa College Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Well Control Institute | |
Keane Group, Inc.
 Keane Group, Inc. Oilfield Services/EquipmentIndustrial Services Provides oil and gas field services | Industrial Services |
First Premium, Inc.
 First Premium, Inc. Insurance Brokers/ServicesFinance Operates as a insurance agency | Finance |
360 Development Partners, LLC
 360 Development Partners, LLC Real Estate DevelopmentFinance Provides real estate services | Finance |
NexTier Oilfield Solutions, Inc.
 NexTier Oilfield Solutions, Inc. Oilfield Services/EquipmentIndustrial Services Provides oilfield services | Industrial Services |
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