The Montney Formation is a geological formation located in western Canada, primarily in the provinces of British Columbia and Alberta. It is known for its rich deposits of natural gas, oil, and natural gas liquids, making it a significant resource for energy production. The formation is primarily composed of siltstone, sandstone, and shale, which were deposited during the Late Triassic to Early Jurassic periods. This formation covers an area of approximately 130,000 square kilometers and has become a focal point for energy companies due to its high productivity. The Montney is considered one of the most promising unconventional plays in North America, attracting investment and technological advancements in extraction methods.