shares of conocophillips cop slid 151 to 10209 tuesday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 158 to 407163 and dow jones industrial average djia falling 102 to 3353083 conocophillips closed 3640 short of its 52week high 13849 which the company achieved on november 4th