Hong Kong's Hang Seng index slightly faded on Friday but posted gains for week. The index slipped 0.17% or 35.68 points and finished at 21,317.85 pressed down by oil shares as crude price declined on Thursday New York session. China Mobile fell 1.1% after Macquarie cut stock's rating to neutral. China Overseas Land & Investment lost 4.7% after firm's chairman announced Chinese real-estate market conditions are likely to be tough in the first half of 2012.