![Stephen Letwin](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>)
Stephen Letwin
Chief Executive Officer at
ONENERGY INC.
Net worth: 4 M $ as of 31/07/2026
Profile
Stephen J.
J.
Letwin currently works at ONEnergy, Inc., as Chairman & Chief Executive Officer from 2016, Cassiar Gold Corp., as Chairman from 2021, The Coal Association of Canada, as Vice-Chairman, and various other companies.
Mr. Letwin also formerly worked at Mancal Corp.
Ltd., as President, Chief Executive Officer & Director from 2020 to 2025, IAMGOLD Corp., as Chief Executive Officer & Non-Executive Director, Precision Drilling Corp., as Director, and various other companies.
Mr. Letwin received his undergraduate degree from McMaster University and Masters Business Admin degree from the University of Windsor.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
CASSIAR GOLD CORP 4.44% | 26/05/2026 | 7,177,669 ( 4.44% ) | 2 M $ | 31/07/2026 |
| 08/03/2026 | 32,423 ( 0.03% ) | 1 M $ | 31/07/2026 | |
ONENERGY INC. 48.95% | 13/06/2025 | 72,576,322 ( 48.95% ) | 1 M $ | 31/07/2026 |
| 09/03/2026 | 337,328 ( 0.13% ) | 99 512 $ | 31/07/2026 |
Stephen Letwin active positions
| Companies | Position | Start |
|---|---|---|
| CASSIAR GOLD CORP. | Chairman | 23/03/2021 |
| ONENERGY INC. | Chief Executive Officer | 14/01/2016 |
| HESS MIDSTREAM LP | Director/Board Member | 01/02/2018 |
| LIBERTY METALS LTD | Director/Board Member | 05/08/2026 |
Hess Midstream Operations LP
 Hess Midstream Operations LP Integrated OilEnergy Minerals Owns, operates, develops and acquires assets that provides services to third-party crude oil and natural gas producers | Director/Board Member | 02/02/2018 |
Hess Midstream GP LLC
 Hess Midstream GP LLC Oilfield Services/EquipmentIndustrial Services Provides oil and gas services | Director/Board Member | - |
The Coal Association of Canada
 The Coal Association of Canada Miscellaneous Commercial ServicesCommercial Services Engages in supporting association members in the development, growth and advancement of a safe, socially responsible & economically sustainable Canadian coal industry | Director/Board Member | - |
OZZ Clean Energy, Inc.
 OZZ Clean Energy, Inc. Electric UtilitiesUtilities Develops and integrates carbon-free solar power systems | Director/Board Member | 24/08/2011 |
C.D. Howe Institute
 C.D. Howe Institute Miscellaneous Commercial ServicesCommercial Services Operates as non profit research institute to raise living standards by fostering economically sound public policies | Director/Board Member | - |
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Former positions of Stephen Letwin
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Training of Stephen Letwin
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
71
1st degree connections
36
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 36 |
|---|---|
Numac Energy (TESO), Inc.
 Numac Energy (TESO), Inc. Oil & Gas ProductionEnergy Minerals Explores for and produces oil and gas | Energy Minerals |
Precision Drilling Corp. /Old/
 Precision Drilling Corp. /Old/ Contract DrillingIndustrial Services Provides oilfield drilling and energy services | Industrial Services |
Enbridge, Inc.
 Enbridge, Inc. Oil & Gas PipelinesIndustrial Services Engages in transporting and exporting of crude oil, natural gas & liquids and generates renewable energy | Industrial Services |
Westcoast Energy, Inc.
 Westcoast Energy, Inc. Gas DistributorsUtilities Provides natural gas distribution and transportation services | Utilities |
Enbridge Energy Partners LP
 Enbridge Energy Partners LP Oil & Gas PipelinesIndustrial Services Transports crude oil and natural gas liquids | Industrial Services |
Frontier Lithium, Inc.
 Frontier Lithium, Inc. Other Metals/MineralsNon-Energy Minerals Mines for lithium and other minerals | Non-Energy Minerals |
ONEnergy, Inc.
 ONEnergy, Inc. Electric UtilitiesUtilities Engages in sale of electricity and natural gas | Utilities |
Alliance Pipeline LP
 Alliance Pipeline LP Oil & Gas PipelinesIndustrial Services Provides oil and gas pipeline transportation services | Industrial Services |
Enbridge Energy Management LLC
 Enbridge Energy Management LLC Oil & Gas PipelinesIndustrial Services Engages in crude oil and liquid petroleum transportation & storage | Industrial Services |
Liberty Metals Ltd.
 Liberty Metals Ltd. Precious MetalsNon-Energy Minerals Develops and explores mineral properties | Non-Energy Minerals |
Cassiar Gold Corp.
 Cassiar Gold Corp. Precious MetalsNon-Energy Minerals Operates as an gold exploration company | Non-Energy Minerals |
Gaz Métro LNG LP
 Gaz Métro LNG LP Gas DistributorsUtilities Distributes natural gas | Utilities |
Enbridge Energy Co., Inc.
 Enbridge Energy Co., Inc. Oil & Gas ProductionEnergy Minerals Provides crude and natural gas transportation business services | Energy Minerals |
Vector Pipeline LP
 Vector Pipeline LP Oil & Gas PipelinesIndustrial Services Operates crude petroleum pipeline | Industrial Services |
Mancal Corp. Ltd.
 Mancal Corp. Ltd. Oil & Gas ProductionEnergy Minerals Explores for, produces, and develops oil and gas properties | Energy Minerals |
McMaster University
 McMaster University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
University of Windsor
 University of Windsor Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Enbridge (U.S.), Inc.
 Enbridge (U.S.), Inc. Oil & Gas PipelinesIndustrial Services Provides oil and natural gas pipeline transportation services | Industrial Services |
Decision Dynamics Technology Ltd.
 Decision Dynamics Technology Ltd. Packaged SoftwareTechnology Services Develops and distributes software for data capture, reporting and business analytics solutions | Technology Services |
Precision Drilling Trust
 Precision Drilling Trust Contract DrillingIndustrial Services Provides contract drilling and other oilfield services | Industrial Services |
TransCanada PipeLines Ltd.
 TransCanada PipeLines Ltd. Oil & Gas PipelinesIndustrial Services Provides natural gas pipeline and nuclear power services | Industrial Services |
IAMGOLD Corp.
 IAMGOLD Corp. Precious MetalsNon-Energy Minerals Engages in the exploration, production and development of gold and mineral properties | Non-Energy Minerals |
Interstate Natural Gas Association of America
 Interstate Natural Gas Association of America Miscellaneous Commercial ServicesCommercial Services Operates a trade organization that advocates regulatory and legislative positions of importance to the natural gas pipeline industry | Commercial Services |
C.D. Howe Institute
C.D. Howe Institute Miscellaneous Commercial ServicesCommercial Services Operates as non profit research institute to raise living standards by fostering economically sound public policies | Commercial Services |
Canadian Gas Association
 Canadian Gas Association Miscellaneous Commercial ServicesCommercial Services Operates as an association for natural gas distribution, transmission, equipment manufactures and other services providers | Commercial Services |
YMCA Calgary
 YMCA Calgary Services to the Health IndustryHealth Services Engages in health and wellness programs | Health Services |
Encor Energy Corp.
 Encor Energy Corp. Precious MetalsNon-Energy Minerals Engages in metal mining activities | Non-Energy Minerals |
TransCanada Energy Ltd.
 TransCanada Energy Ltd. Electric UtilitiesUtilities Generates and distributes electricity | Utilities |
The Coal Association of Canada
The Coal Association of Canada Miscellaneous Commercial ServicesCommercial Services Engages in supporting association members in the development, growth and advancement of a safe, socially responsible & economically sustainable Canadian coal industry | Commercial Services |
Precision Drilling Corp.
 Precision Drilling Corp. Contract DrillingIndustrial Services Provides onshore drilling services to exploration and production companies in the oil and natural gas industry | Industrial Services |
OZZ Clean Energy, Inc.
OZZ Clean Energy, Inc. Electric UtilitiesUtilities Develops and integrates carbon-free solar power systems | Utilities |
Hess Midstream Operations LP
Hess Midstream Operations LP Integrated OilEnergy Minerals Owns, operates, develops and acquires assets that provides services to third-party crude oil and natural gas producers | Energy Minerals |
Hess Midstream Partners GP LP
 Hess Midstream Partners GP LP Financial ConglomeratesFinance Provides investment services | Finance |
Hess Midstream LP
 Hess Midstream LP Integrated OilEnergy Minerals Explores for crude oil and natural gas | Energy Minerals |
Hess Midstream GP LLC
Hess Midstream GP LLC Oilfield Services/EquipmentIndustrial Services Provides oil and gas services | Industrial Services |
Hess Midstream Partners GP LLC
 Hess Midstream Partners GP LLC Oil & Gas ProductionEnergy Minerals Provides midstream services | Energy Minerals |
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