This dataset provides summary information on major Canadian oil and natural gas pipeline systems regulated by the Canada Energy Regulator (CER). It compiles key attributes and information for each pipeline system, such as location, transported commodities, and links to pipeline maps and regulatory documents. Further details and information are available for each pipeline system through CER’s Pipeline Profiles (https://apps.cer-rec.gc.ca/PPS/en/pipeline-profiles). This dataset is updated as needed.