News

AltaGas Closes Preferred Share Offering

August 19, 2010

CALGARY, ALBERTA--(Marketwire - Aug. 19, 2010) - AltaGas Ltd. ("AltaGas") (TSX:ALA) announced today it has closed its previously announced public offering of 8,000,000 Cumulative Redeemable Five-Year Rate Reset Preferred Shares, Series A (the "Series A Preferred Shares") at a price of $25 per Series A Preferred Share (the "Offering"). The Offering resulted in AltaGas receiving gross proceeds of $200 million.  The Offering was first announced on August 10, 2010 when AltaGas entered into an agreement with a syndicate of underwriters, led by TD Securities Inc., RBC Capital Markets and CIBC World Markets Inc.  Net proceeds from the Offering will be used to reduce outstanding indebtedness under AltaGas' credit facilities, thereby strengthening AltaGas' balance sheet and giving it the financial flexibility to support, among other things, construction activities related to the Forrest Kerr project.  The Series A Preferred Shares will commence trading today on the Toronto Stock Exchange under the symbol ALA.PR.A.  AltaGas is one of Canada's largest and fastest growing energy infrastructure organizations. AltaGas creates value by acquiring, growing and optimizing gas and power infrastructure, including a focus on renewable energy sources. For more information visit: 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, the use of proceeds from the Offering. 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.

Investment Community Myles Dougan (403) 691-7594 or 1-877-691-7199 investor.relations@altagas.ca or Media Adrianne Lovric (403) 691-9873 adrianne.lovric@altagas.ca www.altagas.ca