ALTAGAS LTD revenue for the last year amounted to 12.45 B CAD, the most of which — 7.92 B CAD — came from its highest performing source at the moment, Midstream, the year earlier bringing 8.07 B CAD. The greatest contribution to the revenue figure was made by Canada — last year it brought ALTAGAS LTD 7.77 B CAD, and the year before that — 8.14 B CAD.