# Tourmaline Oil Corp. (TSX:TOU)

> Tourmaline Oil Corp.

## About

Tourmaline Oil Corp. is a Canadian senior crude oil and natural gas exploration and production company focused on long-term growth through an active exploration, development, production and acquisition program in the western Canadian sedimentary basin. Since commencing operations in 2008, Tourmaline has built a successful company through strategic acquisitions and an extensive undeveloped land position, with a large drilling inventory and control of key natural gas processing and transportation infrastructure in three core growth areas: the Alberta Deep Basin, the Northeast British Columbia (NEBC) Montney complex, and the Peace River Triassic Oil complex.

## Key facts

- **Cash position:** not discovered
- **Shares outstanding:** not discovered
- **Fully diluted shares:** not discovered
- **Warrants:** not discovered
- **Options:** not discovered
- **Mineral resource:** Tourmaline has major positions in two large resources plays in the Western Canadian Sedimentary Basin: the Alberta Deep Basin and the Northeast British Columbia Montney. The Company has carefully selected these resource plays based on rigorous subsurface technical and economic criteria. These complexes are derisked through the drilling of over 2,640 wells and the infrastructure skeleton is complete across all complexes.
- **Projects:** ["Alberta Deep Basin\n\n320,000 boepd\n\nproduction as at March 2025\n\n1,945 mmboe\n\nreserves as at Dec 31, 2024\n\n14,794 locations\n\ndrilling inventory as at Dec 31, 2024\n\n1,345 total\n\nwells drilled\n\nLargest Deep Basin land position with 3 million acres\n\nTourmaline is the largest producer in the Alberta Deep Basin, which represents over 50% of the Company’s production.\n\nThe Alberta Deep Basin is a multi-objective tight natural gas sand play area with up to 15 separate lower Cretaceous liquids-rich natural-gas-charged sand reservoirs. Tourmaline’s target exploration and production area is in that portion of the Alberta Deep Basin where the entire lower Cretaceous stratigraphic section is gas saturated with no mobile formation water. The primary vehicle for accessing the extensive reserves in these stacked sandstones is multi-stage fracture stimulation in both horizontal and vertical well-bores.\n\nTourmaline currently has ownership interests in 23 natural gas plants in the Alberta Deep Basin, 11 of which are 100% owned and operated by Tourmaline. In aggregate, Tourmaline has in excess of 2.5 bcf/d (net) of natural gas processing capability within this plant network. Tourmaline’s goal is to be one of the lowest-development-cost, most efficient operators in the Alberta Deep Basin, and the Company plans to optimize and systematically continue to further reduce costs of operating the Alberta Deep Basin assets.\n\n330,000 boepd\n\nproduction as at March 2026\n\n1,950 mmboe\n\nreserves as at Dec 31, 2025\n\n15,309 locations\n\ndrilling inventory as at Dec 31, 2025","NEBC Montney\n\nOne of Canada’s largest Montney producers\n\nFocused on liquids rich natural gas in the Montney\n\nTechnological developments, including the drilling of horizontal multi-stage fracture stimulation wells, have allowed access to the thickest, highest pressured and highest deliverability fine grained sandstone reservoirs of the Montney in the NEBC play area. Tourmaline’s Montney EP program has been focused in the Groundbirch/Sunrise/Dawson area of the Peace River Arch, as well as the Gundy CK area, which the Company acquired through a significant asset acquisition in 2016.\n\nTourmaline has ownership in and operates seven significant natural gas processing facilities with aggregate capacity of approximately 1.0 Bcf/d with related gas gathering systems and NGL handling infrastructure in the NEBC complex. This infrastructure complex includes an expanded 400 MMcf/d ethane rejection deep cut gas processing facility installed at Gundy CK in 2019.\n\n325,000 boepd\n\nPRODUCTION AS AT MARCH 2026\n\n3,866 mmboe\n\nRESERVES AS AT DEC 31, 2025\n\n8,814 wells\n\ndrilling inventory AS AT DEC 31, 2025"]
- **Leadership:** Michael Rose
Alberta, Canada
Chairman of the Board
Mr. Rose has been the Chairman, President and Chief Executive Officer of Tourmaline since he founded the Company in August 2008. Prior thereto, he was Chairman, President and Chief Executive Officer of Duvernay Oil Corp. (“Duvernay“), a publicly traded oil and gas company (2004-2008). Mr. Rose has more than 39 years of experience in the oil and gas industry and held various exploration and production positions including managing exploration and petroleum engineering research for a large E&P company before founding Berkley Petroleum Corp. (“Berkley“) in 1993. After the sale of Berkley in 2001, Mr. Rose founded Duvernay, which was sold in August 2008 for $5.9 billion.
Mr. Rose was educated at Queen’s University, graduating with an honours degree in Geology. He is a member of the Association of Professional Engineers and Geoscientists of Alberta and the Canadian Society of Petroleum Geologists. Among other awards, Mr. Rose is the recipient of the Stanley Slipper Gold Medal from the Canadian Society of Petroleum Geologists (2009).

Brian Robinson
Alberta, Canada

Mr. Robinson is a director and the Chief Financial Officer of Tourmaline. Prior thereto, Mr. Robinson was Vice President, Finance and Chief Financial Officer of Duvernay and prior to that was Vice President, Finance and Chief Financial Officer of Berkley. Previously, Mr. Robinson held numerous positions in finance and accounting with intermediate and senior oil and gas companies commencing his career with a large public accounting firm. Mr. Robinson has more than 37 years of experience in the oil and gas industry in the disciplines of finance, financial reporting, budgeting, accounting, management, treasury, tax, and business development.

Mr. Robinson holds a Bachelor of Commerce degree from the University of Calgary and is a Chartered Accountant. He has been a director since October 27, 2008.

Jill Angevine
Alberta, Canada

Independent Director
Chair of the Compensation Committee
Member of the Audit Committee
Member of the Corporate Governance and Nominating Committee

Ms. Angevine is a Corporate Director. Ms. Angevine has over 25 years of professional experience in the investment management industry including portfolio management, capital markets and equity research. Ms. Angevine also serves on the board of Advantage Energy Ltd. and Ero Copper Corp. Prior to her work as a Corporate Director, Ms. Angevine was a Portfolio Manager at two asset management companies and prior thereto was Vice President and Director, Institutional Research at FirstEnergy Capital Corp.

Ms. Angevine holds a Bachelor of Commerce degree from the University of Calgary and has earned the Chartered Accountant (CA), the Chartered Financial Analyst (CFA), and the Institute of Corporate Directors (ICD.D) designations.

Ms. Angevine has been a director of the Company since November 4, 2015.

William Armstrong
Colorado, United States

Independent Director
Member of the Reserves Committee

Mr. Armstrong is the President and Chief Executive Officer of Armstrong Oil & Gas Inc. (“AOG“), an oil and gas exploration and production company headquartered in Denver, Colorado. Mr. Armstrong founded AOG in 1985, and has grown the business by generating and drilling large impact wildcat exploration opportunities. Over the last 15 years, AOG has been involved in the discovery of over a dozen new fields with recent areas of activity in the North Slope and Cook Inlet Basins of Alaska, the Gulf of Mexico, the San Joaquin Valley, the Williston Basin, the Michigan Basin, and the Wyoming/Utah Overthrust Belt.

Mr. Armstrong graduated Phi Beta Kappa from Southern Methodist University with a degree in Geology in 1982 and is active in numerous business ventures, investments and philanthropies and is on the board of the Southern Methodist University.

Mr. Armstrong has been a director of the Company since October 27, 2008.

Lee Baker
Alberta, Canada

Independent Director
Chair of the Reserves Committee
Member of the Environment, Safety and Sustainability Committee

Mr. Baker has been an independent businessman since June 2016. Prior thereto, Mr. Baker was President and Chief Executive Officer of Nordegg Resources Inc., a private oil and gas company which he co-founded in March 2008. Prior to 2008, Mr. Baker was the President and Chief Executive Officer of RSX Energy Inc., a publicly listed oil and gas company. Mr. Baker has over 35 years of experience in the oil and gas industry and held various positions as geologist, district geologist, Vice President, and President and Chief Operating Officer of a publicly traded oil and gas exploration company.

Mr. Baker was educated at McMaster University, graduating with an Honours degree in Geology. He is a member of the Association of Professional Engineers and Geoscientists of Alberta.

Mr. Baker has been a director of the Company since March 22, 2011.

Christopher Lee
Alberta, Canada

Independent Director
Chair of the Audit Committee
Member of the Environment, Safety and Sustainability Committee

Mr. Lee has been an independent corporate director since 2023 when he retired as Deputy Chair of the Canadian Deloitte Board of Directors. Formerly, he was the Deloitte Managing Partner of the Prairie Region and previously held the role of the National Energy & Resources Industry leader.  Mr. Lee is currently a Board member and Finance committee chair of Alberta Blue Cross and the Vice Chair of the Mount Royal University Board of Governors.  Former board affiliations include WinSport Canada, the Calgary Bid Exploration Committee, Chair of Theatre Calgary and Chair of the Canadian Institute of Chartered Business Valuators.

Mr. Lee received a Bachelor of Commerce from the University of Manitoba and is a Fellow, Chartered Professional Accountant.

Mr. Lee has been a director of the Company since November 1, 2023.

Andrew MacDonald
British Columbia, Canada

Lead Independent Director
Chair of the Corporate Governance and Nominating Committee
Member of the Audit Committee
Member of the Compensation Committee

Mr. MacDonald has been an independent businessman since January 2009. Prior thereto, he was the Co-Head of Canadian Equities and Portfolio Manager with Phillips, Hager & North Investment Management, where he was responsible for client investments in the energy sector. He began his career as a well site geologist and has worked in the investment business for over 30 years. He worked for 23 years as an investment/portfolio manager and has extensive experience in financial statement analysis, corporate governance, and compensation. He has served on the boards of various charitable organizations including the John Howard Society of Toronto.

Mr. MacDonald graduated with a Bachelor of Arts in Geology from Princeton University.

Mr. MacDonald has been a director since March 22, 2011.

Lucy Miller
Alberta, Canada

Independent Director
Chair of the Environment, Safety and Sustainability Committee
Member of the Compensation Committee
Member of the Corporate Governance and Nominating Committee

Dr. Miller, currently an independent businesswoman, retired as the President and CEO of United Way of Calgary and Area in December 2016, a position she held since 2012.  Prior thereto, she was the Chief Superintendent of the Calgary Catholic School District.

Dr. Miller has served on a number of boards throughout her career, including St. Mary’s University (2007 – 2011), the Calgary Homeless Foundation and the Calgary Poverty Reduction Initiative. She is currently a director of Chandos Construction and is also serving on the Advisory Council for the Haskayne School of Business.  Throughout her career, Dr. Miller has also developed significant expertise in the area of social responsibility helping organizations have a positive impact in areas of social development, ethical, economic and environmental issues.

In 2013, the Women’s Executive Network named Dr. Miller as one of Canada’s 100 Most Powerful Women and Alberta Venture Magazine named her as one of Alberta’s 50 Most Influential People.

Dr. Miller received a Doctor of Education degree from the University of Toronto in 2006 and a Master of Education degree from Dalhousie University in 1983.

Dr. Miller has been a director since June 7, 2017.

Travis Toews
Alberta, Canada

Independent Director
Member of the Audit Committee
Member of the Corporate Governance and Nominating Committee

Mr. Toews is the Managing Director of the Melbern Group of companies active in cattle ranching and environmental services. He was a Member of the Legislature of Alberta from 2019 to 2023. During that time, he served as the Minister of Finance, a member of Executive Council, and President of the Treasury Board for the Province of Alberta. Mr. Toews began his career at a public accounting firm before pursuing business interests in agriculture and energy services. He has served on a number of non-profit boards as well as provincial and national industry boards including Alberta Beef Producers, the Canadian Agri-Food Trade Alliance and served as President of the Canadian Cattle Association. 

Mr. Toews is currently a Senior Fellow with the C.D. Howe Institute and is a Fellow of the Chartered Professional Accountants.

Janet Weiss
Alaska, United States

Independent Director
Member of the Environment, Safety and Sustainability Committee
Member of the Reserves Committee
Ms. Weiss was the President of BP Exploration (Alaska), Inc. (“BP Alaska”) from 2013 to 2020. Prior thereto, Ms. Weiss was employed by BP America, Inc (“BP America”) (or its predecessors) since 1985 (and ARCO, prior to its acquisition by BP America in 1999). Ms. Weiss was a director of BP America and BP Alaska (as part of her duties as President of BP Alaska) and has over 35 years of oil and gas experience. She has served on the board of directors of the United Way of Anchorage and Covenant House of Alaska. Ms. Weiss is currently a director of Halliburton Corporation, First National Bank of Alaska, and Northwest University. Ms. Weiss received a Bachelor of Science in Chemical Engineering in 1986 from Oklahoma State University.

_Verified data last updated: 2026-05-25_

## Recent filings

- 2026-05-06 — mda — [tou_2026-05-06_16-16-50.pdf](https://chat.orbiton.app/tou/preview/51956?documentId=51956)
- 2026-05-06 — financials — [tou_2026-05-06_16-16-49.pdf](https://chat.orbiton.app/tou/preview/51957?documentId=51957)
- 2026-05-06 — press_release — [tou_2026-05-06_16-11-10.pdf](https://chat.orbiton.app/tou/preview/51958?documentId=51958)
- 2026-05-01 — other — [tou_2026-05-01_15-43-40.pdf](https://chat.orbiton.app/tou/preview/51959?documentId=51959)
- 2026-04-27 — other — [tou_2026-04-27_11-17-29.pdf](https://chat.orbiton.app/tou/preview/51960?documentId=51960)
- 2026-04-27 — proxy — [tou_2026-04-27_11-16-58.pdf](https://chat.orbiton.app/tou/preview/51961?documentId=51961)
- 2026-03-25 — other — [tou_2026-03-25_16-04-54.pdf](https://chat.orbiton.app/tou/preview/51962?documentId=51962)
- 2026-03-20 — other — [tou_2026-03-20_12-00-17.pdf](https://chat.orbiton.app/tou/preview/51963?documentId=51963)

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- Investor website: https://www.tourmalineoil.com/
