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10 September 2026

Canada’s largest Clearwater oil producer emerges from Tamarack-Headwater merger

Tamarack Valley Energy and Headwater Exploration are joining forces in a C$10 billion all-stock merger, forming Canada's largest pure-play oil producer in the Clearwater formation.

Canada's largest Clearwater oil producer emerges from Tamarack-Headwater merger

The energy sector is witnessing a significant transformation as Tamarack Valley Energy and Headwater Exploration announce their intention to merge, creating a powerhouse in Canada’s oil industry. This strategic alliance, valued at an impressive C$10 billion, is set to redefine the landscape of the Clearwater formation.

The definitive arrangement agreement, unveiled on September 8, outlines a transaction that will see Headwater shareholders receive one common share of Tamarack for each Headwater share they hold. This exchange will result in a new entity with a robust ownership structure, where Tamarack shareholders will own 66.5 percent and Headwater shareholders 33.5 percent.

The New Energy Giant: A Closer Look at the Combined Entity

The merged company will command an extensive land position, controlling more than 1,500 sections across the greater Clearwater fairway. This includes key areas such as Marten Hills, Nipisi, and Marten Hills West, establishing a contiguous and strategic footprint. With a production rate exceeding 80,000 barrels of oil equivalent per day, the combined entity will be well-positioned to capitalize on over 3,000 identified drilling locations and 300 million boe in proved and probable reserves.

One of the most compelling aspects of this merger is the expected immediate boost to Tamarack’s free funds flow per share, projected to increase by more than 10 percent. Additionally, the merged company aims to reduce its 2027 decline rate to 15 percent, with a reduced free funds flow breakeven cost of US$37 per barrel unhedged. The companies anticipate realizing immediate synergies through the integration of operations, marketing, and corporate offices, projecting run-rate synergies of more than C$50 million per year.

Ensuring Pipeline Access and Future Growth

To support its expanded production profile, Tamarack has secured 35,000 barrels per day of potential long-term egress out of Alberta. This includes 25,000 barrels per day on the expanded Trans Mountain pipeline to the west coast, expected to commence in early 2027, and an additional 10,000 barrels per day on the proposed South Bow Prairie Connector to the US Gulf Coast. These strategic moves are designed to ensure pipeline access and mitigate the risk of local capacity constraints, providing greater exposure to diversified oil markets.

Leadership Transition and Non-Core Asset Carve-Out

As part of the transaction, the companies will carve out specific non-core assets into a new publicly listed company called Tributary Exploration. Tributary will inherit Headwater’s legacy McCully natural gas production in New Brunswick, alongside undeveloped Mannville and thermal heavy oil prospects in Alberta and Saskatchewan. This strategic move allows the combined entity to focus on its core operations while still capitalizing on valuable assets.

The leadership transition is also a notable aspect of this merger. Steve Buytels, Tamarack’s current president, will be promoted to president and CEO effective January 1, 2027. Meanwhile, Brian Schmidt, Tamarack’s founding CEO since 2009, will transition to executive chairman. This leadership shift is expected to bring a fresh perspective and strategic vision to the combined company.

The transaction is expected to close in the fourth quarter, marking the beginning of a new era in Canada’s energy sector. With a strong focus on low-cost, high-margin production, modest reinvestment requirements, and low breakeven oil prices, the merged entity is poised for significant growth and success.