We are affirming our ratings, including our 'BBB-' long-term corporate credit rating, on Alberta-based AltaLink Investments L.P. (AILP). The ratings reflect our opinion of the company's excellent business risk profile and aggressive financial risk profile. The stable outlook reflects our expectation of timely and significant equity injections from AILP's ultimate sponsors to maintain its current capital structure. On Nov. 22, 2010, Standard&Poor's Ratings Services affirmed its ratings, including its 'BBB-' long-term corporate credit rating, on Alberta-based AltaLink Investments L.P. The outlook is stable. The ratings on AILP reflect what we view as an excellent business risk profile. In our opinion, supporting this is the excellent business risk profile of its single investment in AltaLink L.P. (AltaLink; A-/Stable/--), an