| Business | Phone |
| Action Energy Inc 435 4 Ave Sw #550, Calgary T2P 3A8 | (403) 264-1112 |
| Alta Gas Svc Inc 355 4 Ave Sw #1700, Calgary T2P 0J1 | (403) 691-7575 |
| Atco Gas 4415 12 St Ne, Calgary T2E 4R1 | (403) 245-7444 |
| Atco Gas 383 Midpark Blvd Se, Calgary T2X 3C8 | (403) 254-6200 |
| Atco Gas 3055 37 Ave Ne, Calgary T1Y 6A2 | (403) 219-8600 |
| Atco Gas 909 11 Ave Sw, Calgary T2R 1L7 | (403) 245-7110 |
| Atco Gas 500 Crowfoot Cres Nw, Calgary T3G 3W4 | (403) 245-7070 |
| Ngl Supply Co Ltd 700 4 Ave Sw #1520, Calgary T2P 3J4 | (403) 265-1977 |
| North Country Energy 230 18 Ave Sw, Calgary T2S 0C1 | (403) 215-4860 |
| Origination 333 7 Ave Sw #2400, Calgary T2P 2Z1 | (403) 218-4550 |
| Pan Alberta Gas Ltd 630 6 Ave Sw, Calgary T2P 0S8 | (403) 263-3755 |
| Seminole Canada Gas Co 350 7 Ave Sw #2200, Calgary T2P 3N9 | (403) 213-6000 |
| Transcanada Pipe Lines Ltd 450 1 St Sw, Calgary T2P 5H1 | (403) 920-2000 |
| Ubs Warburg Energy Canada 400 3 Ave Sw #3501, Calgary T2P 4H2 | (403) 532-2000 |
| Bonterra Energy Corp 1015 4 St Sw, Calgary T2R 1J4 | (403) 237-8868 |
| Wgr Canada Inc 421 7 Ave Sw #1200, Calgary T2P 4K9 | (403) 233-0540 |
| Bonterra Energy Income Trust 1015 4 St Sw #901, Calgary T2R 1J4 | (403) 262-5307 |
| Can West Gas Supply Inc 440 2 Ave Sw #300, Calgary T2P 5E9 | (403) 218-1000 |
| Can West Gas Supply Inc 630 6 Ave Sw #700, Calgary T2P 0S8 | (403) 263-3758 |
| El Paso Merchant Energy Canada 333 7 Ave Sw #2400, Calgary T2P 2Z1 | (403) 218-4590 |
| Engage Energy Canada Lp 425 1 St Sw #2600, Calgary T2P 3L8 | (403) 297-0333 |
| Enron Canada Corp 400 3 Ave Sw #3500, Calgary T2P 4H2 | (403) 974-6700 |