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(1) Non-GAAP financial measure; see discussion in Non-GAAP Financial Measures section of the 2012 annual MD&A.

(2) Dividends declared of $0.11 per common share per month from January 1 until October 27, 2011, $0.115 commencing October 27, 2011 and $0.12 per common share per month commencing September 10, 2012.

(3) Weighted average.

CONFERENCE CALL AND WEBCAST DETAILS:

AltaGas will hold a conference call today at 9:00 a.m. MT (11:00 a.m. ET) to discuss fourth quarter and year-end financial results, progress on construction projects and other corporate developments.

Members of the media, investment communities and other interested parties may dial (416) 340-8527 or call toll free at 1-877-240-9772. There is no passcode. Please note that the conference call will also be webcast. To listen, please go to http://www.altagas.ca/investors/presentations_and_events. The webcast will be archived for one year.

Shortly after the conclusion of the call, a replay will be available by dialing (905) 694-9451 or 1-800-408-3053. The passcode is 4440593. The replay expires at midnight (Eastern) on March 7, 2013.

The complete fourth quarter 2012 news release is available on www.altagas.ca in the Investors/Financial Reporting section of its website.

The audited consolidated annual financial statements and annual Management's Discussion and Analysis (MD&A), which contain additional notes and disclosures, are expected to be filed with SEDAR on or about March 5, 2013, at which time a press release to that effect will be issued. The material will also be available on the AltaGas website on that same day (www.altagas.ca).

This news release contains forward-looking statements. When used in this news release, the words "may", "would", "could", "will", "intend", "plan", "anticipate", "believe", "seek", "propose", "estimate", "expect", and similar expressions, as they relate to AltaGas or an affiliate of AltaGas, are intended to identify forward-looking statements. In particular, this news release contains forward-looking statements with respect to, among other things, business objectives, expected growth, results of operations, performance, business projects and opportunities and financial results. These statements involve known and unknown risks, uncertainties and other factors that may cause actual results or events to differ materially from those anticipated in such forward-looking statements. Such statements reflect AltaGas' current views with respect to future events based on certain material factors and assumptions and are subject to certain risks and uncertainties, including without limitation, changes in market, competition, governmental or regulatory developments, general economic conditions and other factors set out in AltaGas' public disclosure documents. Many factors could cause AltaGas' actual results, performance or achievements to vary from those described in this news release, including without limitation those listed above. These factors should not be construed as exhaustive. Should one or more of these risks or uncertainties materialize, or should assumptions underlying forward-looking statements prove incorrect, actual results may vary materially from those described in this news release as intended, planned, anticipated, believed, sought, proposed, estimated or expected, and such forward-looking statements included in, or incorporated by reference in this news release, should not be unduly relied upon. Such statements speak only as of the date of this news release. AltaGas does not intend, and does not assume any obligation, to update these forward-looking statements. The forward-looking statements contained in this news release are expressly qualified by this cautionary statement.



Contacts:
AltaGas Ltd.
Investment Community
1-877-691-7199
investor.relations@altagas.ca

AltaGas Ltd.
Media
(403) 691-7182
media.relations@altagas.ca