seattlepi.com | Oil and Gas Companies Lead the Stock Market Lower at Midday ABC News Stocks were moderately lower in midday trading Monday as the price of oil took another tumble amid renewed concerns about the Chinese and U.S. economies. KEEPING SCORE: The Dow Jones industrial average lost 56 points, or 0.3 percent, to 16,411 as ... Wall St. Slumps as Oil Prices Slide |