EXHIBIT 23.3 ------------ SPROULE ASSOCIATES LIMITED December 7, 2006 Enerplus Resources Fund CONSENT OF INDEPENDENT PETROLEUM ENGINEERS We hereby consent to the incorporation by reference, in this Registration Statement of Enerplus Resources Fund (the "Registrant") on Form S-8 (the "Registration Statement"), of the Annual Report of the Registrant on Form 40-F, dated March 7, 2006, for the year ended December 31, 2005, which document makes reference to our firm and our report entitled "Evaluation of the P&NG Reserves of Enerplus Resources Fund (As of December 31, 2005)", dated February 28, 2006, evaluating the Registrant's oil, natural gas and natural gas liquids interests effective December 31, 2005. Sincerely, /s/ R. Keith MacLeod --------------------------------- Name: R. Keith MacLeod, P.Eng. Title: Executive Vice-President 900, 140 Fourth Ave SW; Calgary, AB T2P 3N3 Canada; Tel: (403) 294-5500, Fax: (403) 294-5590 Toll Free: 1-877-777-6135 info@sproule.com, www.sproule.com