CNBC | How Oil Prices Are Impacted By Storage Logistics OilPrice.com Macroeconomic investors in financial products such as oil futures contracts speculate on commodity pricing trends. Because their participation in markets is purely financial, speculators, notably hedge funds, are motivated by a different business ... US oil closes 1.1 pct lower, but gains more than 3 pct for week Futures File: Crude oil catches fire Oil glut 'may be easing' as non-Opec producers cut back |