| 1823 | ATCO Gas and Pipelines Ltd. | Application for approval to amend Permit and License No. 2184 | 15/05/2012 |
| 1873 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA 2012-125- Amendment to Permit and Licence | 10/05/2012 |
| 1866 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA 2012-124- Amendment to Permit and Licence | 10/05/2012 |
| 1859 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA2012-118- Amendment to Permit and Licence | 10/05/2012 |
| 1805 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to Decision 2012-125- Compressor Removal | 09/05/2012 |
| 1860 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA 2012-121- Amendment to Permit and Licence | 09/05/2012 |
| 1853 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA2012-116- Amendment to Permit and Licence | 07/05/2012 |
| 1845 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA2012-109 - Amendment to Permit and Licence | 27/04/2012 |
| 1843 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA2012-108 - Amendment to Permit and Licence | 27/04/2012 |
| | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA2012-99 - Amendment to Permit and Licence | 19/04/2012 |
| 1831 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA 2012-96 - Amendment to Permit and Licence | 18/04/2012 |
| 1813 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA2012-89 - Amendment to Permit and Licence | 13/04/2012 |
| 1820 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA2012-92 - Amendment to Permit and Licence | 13/04/2012 |
| 1809 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA2012-87 - Amendment to Permit and Licence | 05/04/2012 |
| 1803 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA2012-85 - New Construction | 04/04/2012 |
| 1801 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA2012-83 - Pipeline Split and New Construction | 03/04/2012 |
| 1788 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA2012-81 - Pipeline Split, Removal and New Construction | 30/03/2012 |
| 1718 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to Decision 2012-078 - Pipeline Deletion | 22/03/2012 |
| 1763 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA2012-66 - Pipeline Split, Removal and New Construction | 14/03/2012 |
| 1756 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA2012-65 - Amendment to Permit and Licence | 12/03/2012 |
| 1754 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA2012-63 - Pipeline Abandonment | 08/03/2012 |
| 1748 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA2012-61 - Amendment to Permit and Licence | 07/03/2012 |
| 1737 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to Decision 2012-061 - Pipeline Removal | 01/03/2012 |
| 1735 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to Decision DA2012-48 - Amendment to Permit and Licence | 27/02/2012 |
| 1732 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to Decision DA2012-47 - Pipe Grade Amendment | 24/02/2012 |
| 1695 | AltaGas Utilities Inc. | Appendix 1 to Decision 2012-058 - Maximum Operating Pressure Increase | 24/02/2012 |
| 1717 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA2012-45 - Amendment to Permit and Licence 6353 | 22/02/2012 |
| 1715 | AltaGas Utilities Inc. | Appendix 1 to DA2012-44 - Amendment to Permit and Licence | 21/02/2012 |
| 1704 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA2012-41 - Amendment to Permit and Licence | 17/02/2012 |
| 1705 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA2012-37 - Amendment to Permit and Licence | 10/02/2012 |
| 1694 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA2012-38 - Pipeline Abandonment | 10/02/2012 |
| 1685 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA2012-35 - Amendment to Permit and Licence | 07/02/2012 |
| 1681 | ATCO Gas and Pipelines Ltd. (South) | Appendix 2 to DA2012-32 - Amendment to Permit and Licence | 03/02/2012 |
| 1681 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA2012-32 - Amendment to Permit and Licence | 03/02/2012 |
| 1692 | AltaGas Utilities Inc. | Appendix 1 to DA2012-33 - Amendment to Permit and Licence | 03/02/2012 |
| 1677 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to Decision 2012-036 - Pipeline Split, Removal and New Construction | 03/02/2012 |
| 1672 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA2012-13 - Pipeline Abandonment | 25/01/2012 |
| 1665 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA 2012-11 - Amendment to Permit and Licence | 23/01/2012 |
| 1657 | ATCO Gas and Pipelines Ltd. | Appendix 1 to DA 2012-7 - Amendment to Permit and Licence | 10/01/2012 |
| 1648 | ATCO Gas and Pipelines Ltd. (South) | Appendix 1 to DA 2012-2 - Pipeline Split | 04/01/2012 |