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 |
