In a recent Briefcase we reported on Ivanhoe Energy’s agreements to purchase interests in oilsands leases from Talisman Energy (TSX: TLM). Well, today Ivanhoe announced it has officially completed the acquisition of the working interests to two of the leases for a total purchase price of $90 million. It had originally wanted to buy interests to three leases, and had agreed to pay $105 million, but a part owner of the third lease scuttled that deal.