Lista de empresas
| Name | Province | City | |
|---|---|---|---|
| UG - Dawn Operations - Enbridge Gas Inc. | Ontario | Dresden | |
| UG - Dow A Compressor Station - Enbridge Gas Inc. | Ontario | Township of Lambton | |
| UG - Lobo Compressor Station - Enbridge Gas Inc. | Ontario | Ilderton | |
| UG - Oil Springs East Pool - Enbridge Gas Inc. | Ontario | Enniskillen | |
| UG - Parkway (East) Compressor Station - Enbridge Gas Inc. | Ontario | Mississauga | |
| UG - Parkway West - Enbridge Gas Inc. | Ontario | Milton | |
| UG - Sandwich Pool Station - Enbridge Gas Inc. | Ontario | Sandwich | |
| UG - Waubuno Compressor Station - Enbridge Gas Inc. | Ontario | St. Clair | |
| Uhthoff Quarry - NELSON AGGREGATE | Ontario | Orillia | |
| Ukalta 05-18 - Spur Petroleum Ltd. | Alberta | Ukalta |
