Prices of Oil and of Nonfuel Commodities, 2002-06. Chart of prices of oil and of nonfuel commodities, 2002 to 2006. For details, refer to the text immediately preceding this chart. Note: The data are monthly and extend through January 2006. The oil price is the spot price of West Texas intermediate crude oil. The price of nonfuel commodities is an index of forty-five primary-commodity prices. Source: For oil, the Commodity Research Bureau; for nonfuel commodities, International Monetary Fund.