Press Release

DBRS Rates AltaGas Ltd.’s New Issue at BBB, Stable Trend

Energy
March 21, 2011

DBRS has today assigned a rating of BBB with a Stable trend to the proposed $200 million 4.10% senior unsecured medium-term notes issue of AltaGas Ltd. maturing on March 24, 2016. The issue is expected to settle on March 24, 2011.

Net proceeds from the sale of the above-noted securities will be used for repayment of outstanding bank indebtedness and for general corporate purposes.

Notes:
All figures are in Canadian dollars unless otherwise noted.

The applicable methodology is Rating North American Energy Utilities (Electric, Natural Gas and Pipelines), which can be found on the DBRS website under Methodologies.