CALGARY, ALBERTA--(Marketwire - July 22, 2011) - AltaGas Ltd. (AltaGas) (TSX:ALA) today announced that the ratification vote by the Tahltan Nation on the proposed McLymont Creek and Volcano Creek Impact Benefit Agreements (IBA) as announced on June 1, 2011, will now take place September 9 to September 15, 2011. In addition, the Tahltan Central Council will be issuing a Notice of Vote to Tahltan membership, which initiates the formal voting process on or before July 27, 2011.

The postponement is due in part to the Canada Post strike in June, which prevented the timely delivery of packages containing information about the ratification process to Tahltan members. Additionally, the Tahltan required time to improve their ratification process, which also affected the timing of the vote. As a result, AltaGas has supported the decision to reschedule the vote based on the factors above. The delay is not expected to impact the schedules for either project.

AltaGas is an energy infrastructure business with a focus on natural gas, power and regulated utilities. AltaGas creates value by acquiring, growing and optimizing its energy infrastructure, including a focus on renewable energy sources. For more information visit: www.altagas.ca.

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