keywords: stocks oil prices barrel investors
text: Stocks Mixed As Oil Nears \$51 Per Barrel NEW YORK - Stocks were mixed Tuesday as oil prices climbed close to \$51 per barrel and investors worried that rising energy costs would dampen a widely expected fourth quarter rally.    Wall Street was uneasy but not panicky as a barrel of light crude was quoted at \$50.63, up 72 cents, on the New York Mercantile Exchange...