AltaGas Income Trust announces monthly distribution

June 15, 2005

CALGARY--(CCNMatthews - June 15) - AltaGas Income Trust (AltaGas or the Trust) (TSE:ALA.UN) announced today that a monthly distribution will be paid on July 15, 2005 to holders of record on June 27, 2005, of Trust Units and limited partnership units that are exchangeable into Trust Units (Exchangeable Units). The amount of the distribution will be $0.15 for each Trust Unit and each Exchangeable Unit.

AltaGas has adopted Premium DistributionTM, Distribution Reinvestment and Optional Unit Purchase Plans (the Plans) for eligible holders of Trust Units and Exchangeable Units (collectively Unitholders) of AltaGas Income Trust, and AltaGas Holding Limited Partnership No. 1.

To participate in either of the Plans, registered Unitholders must deliver the appropriate properly completed and signed authorization forms provided by AltaGas for such purpose to Computershare Trust Company of Canada no later than 3:00 p.m. (Calgary time) on the business day immediately preceding a distribution record date in order for the cash distribution or cash payment to which such record date relates to be reinvested or invested, as the case may be, under the applicable Plan. Beneficial owners of Trust Units or Exchangeable Units (i.e. owners of Trust Units or Exchangeable Units that are held through a nominee such as a broker or custodian) who wish to participate in the applicable Plan should contact their broker, investment dealer, financial institution or other nominee who hold their Trust Units or Exchangeable Units to provide instructions regarding their participation in the applicable Plan. See additional information on the Plans on AltaGas' website at

AltaGas moves energy from its source to the end user, adding value through the process. The Trust has consolidated assets totalling over $1 billion and a market capitalization of approximately $1.4 billion. Its steadily expanding asset base today includes natural gas gathering and processing facilities, interests in ethane and natural gas liquids extraction plants, and transmission pipelines. AltaGas distributes natural gas to Alberta customers through AltaGas Utilities Inc., to customers in the Northwest Territories through Inuvik Gas Ltd. and in Nova Scotia through its interest in Heritage Gas Limited. The Trust provides energy services to customers, including marketing of natural gas and natural gas liquids, sale of power from its power purchase based arrangements and, as a leading energy agency business, specializes in the procurement and supply of energy to end users.

AltaGas' Trust Units are listed on the Toronto Stock Exchange under the symbol ALA.UN. The Trust is included in the S&P/TSX Capped Income Trust Index and the S&P/TSX Capped Energy Trust Index.

When used in this news release, the words "anticipate," "estimate," and similar expressions are intended to identify forward looking statements. Such statements are subject to certain risks, uncertainties and assumptions that could cause actual results to differ materially from those contemplated in the forward looking statements. These risks and uncertainties include operating performance, regulatory and environmental issues, weather and economic conditions, competition and financing availability. For additional information on these and other factors see the reports filed by AltaGas with Canadian securities regulators. AltaGas disclaims any intention or obligation to update or revise any forward looking information whether as a result of new information or future event.

Dennis Dawson
(403) 691-7534


Investment Community:
Debbie Stein
(403) 269-5683