Canadian Utilities Limited Files Final Base Shelf Prospectus and Medium Term Note Prospectus Supplement

CALGARY, ALBERTA -- (Marketwired) -- 12/04/13 -- Canadian Utilities Limited (TSX: CU)(TSX: CU.X)(TSX: CU.PR.C)(TSX: CU.PR.D)(TSX: CU.PR.E)(TSX: CU.PR.F)(TSX: CU.PR.G) announced today that it has filed and received a receipt for a final base shelf prospectus that will allow the company to issue up to $2.0 billion of Preferred Shares and Debt Securities in tranches as required over the next 25 months. The proceeds will be used for capital expenditures, to repay indebtedness, and for other general corporate purposes. Canadian Utilities Limited also announced that it has filed a supplement to its base shelf prospectus to establish a medium term note program that would allow the company to issue up to $1.0 billion in unsecured medium term notes over the next 25 months. This new release does not constitute an offer to sell securities, nor is it a solicitation of an offer to buy securities, in any jurisdiction. All sales will be made through registered securities dealers in jurisdictions where the offering has been qualified for distribution. Canadian Utilities Limited, an ATCO company, with more than 7,100 employees and assets of approximately $15 billion, delivers service excellence and innovative business solutions worldwide with leading companies engaged in utilities (pipelines, natural gas and electricity transmission and distribution), energy (power generation, natural gas gathering, processing, storage and liquids extraction) and technologies (business systems solutions). More information can be found at www.canadianutilities.com . Contacts: Canadian Utilities Limited B.R. (Brian) Bale Senior Vice President & Chief Financial Officer (403) 292-7502 www.canadianutilities.com