ABC Online | Wall St falls as crude oil prices tumble ABC Online Wall Street has slumped from six-week highs, closing lower as falling oil prices jarred investors and concerns over growth in China continued after the country devalued its yuan. Crude oil plunged on speculation members of the Organisation of the ... Oil Prices Slide Back, and the Market Follows Wall St. stumbles as oil slumps again Wall Street stumbles as oil slumps again |