By: Nigel Bankes
Case Commented On: Signalta Resources Limited v Canadian Natural Resources Limited, 2025 ABCA 306 (CanLII) and Signalta Resources Limited v Canadian Natural Resources Limited, 2023 ABKB 108 (CanLII).
PDF Version: Unlawful Production and Restitutionary Damages
There are two principal substantive issues in this important unanimous decision of the Alberta Court of Appeal (referred to as ABCA decision). The first issue relates to the rules pertaining to the right of a Crown oil sands lessee (Canadian Natural Resources Limited (CNRL)) to produce gas cap (or non-solution) gas in the course of producing oil sands (or bitumen) when the Crown has leased the natural gas rights in the same location (and indeed the same formation) to another party (Signalta). The second substantive issue relates to the legal consequences of the unlawful production of somebody else’s natural gas, specifically the assessment of damages for such unlawful production.