Mapath Capital CorpTSXV: MPTH.H

Shell Canada Completes Acquisition of BlackRock Ventures

CALGARY, July 10 /CNW/ - Shell Canada Limited (TSX:SHC) and BlackRock
Ventures Inc. (TSX:BVI) jointly announced today that as of 1:01 a.m. on July
10, 2006 approximately 257,968 additional common shares of BlackRock have been
validly deposited to the offer by BR Oil Sands Corporation, a wholly-owned
subsidiary of Shell Canada, to acquire all of the common shares of BlackRock
(including common shares issuable upon the exercise or surrender of any
options or conversion of any convertible debentures). BR Oil Sands Corporation
has taken up these additional shares, which, together with those shares
previously taken up, represent approximately 99.38% of the common shares of
BlackRock on a fully-diluted basis. BR Oil Sands Corporation will pay for
these additional shares today by providing the depositary with sufficient
funds for transmittal to the holders of these shares.
Shell Canada first announced its intention to make the offer on May 8,
2006, and BR Oil Sands Corporation mailed its take-over bid circular to the
shareholders of BlackRock on May 11, 2006. The offer was extended twice to
allow BlackRock shareholders an additional opportunity to tender their shares.
BR Oil Sands Corporation will now exercise its statutory rights under the
Canada Business Corporations Act to compulsorily acquire the remaining
BlackRock common shares that were not deposited to the offer. Following the
compulsory acquisition, BR Oil Sands Corporation intends to cause BlackRock to
de-list the BlackRock common shares from the Toronto Stock Exchange and to
apply to securities regulatory authorities to cease to be a reporting issuer.

Shell Canada Limited

Shell Canada is a large Canadian integrated petroleum company with three
major businesses. Exploration & Production explores for, produces and markets
natural gas and natural gas liquids. Oil Sands is responsible for an
integrated bitumen mining and upgrading operation in the Athabasca area of
Alberta and the company's Peace River in situ bitumen business. Oil Products
manufactures, distributes and markets refined petroleum products across
Canada.

BlackRock Ventures Inc.

BlackRock Ventures is an oil sands producer with operations located
exclusively in Canada. Current operations are located in three heavy-oil
regions: the Peace River oil sands, the Cold Lake oil sands and the
Lloydminster area.

Legal Notices

This release does not constitute an offer to purchase or a solicitation
of an offer to sell securities.