The document provides a summary of commodity price movements on major world commodities as of January 15. It reports the opening price, daily price range, weekly, monthly, quarterly and yearly price movements, as well as the 52-week price range for several commodities including the S&P GSCI Total Return Index, gold, silver, copper, crude oil (WTI and Brent), and natural gas. All commodities declined on the day except for gold and silver which increased slightly. Crude oil experienced the largest weekly declines of 11-14%.