2012 Annual Information Form (1,470 KB)
2011 Annual Information Form (881 KB)
2010 Annual Information Form (742 KB)
2009 Annual Information Form (1,559 KB)
2008 Annual Information Form (1,712 KB)
2007 Annual Information Form (1,088 KB)
2006 Annual Information Form (1,189 KB)
2005 Annual Information Form (2,161 KB)
2004 Annual Information Form (1,323 KB)
2003 Annual Information Form (660 KB)
Public securities documents and information filed by AltaGas can also be found by visiting the SEDAR website (System for Electronic Document Analysis and Retrieval).