shares of occidental petroleum corp oxy shed 100 to 2566 tuesday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 034 to 452003 and dow jones industrial average djia falling 076 to 3510000 this was the stocks second consecutive day of losses occidental petroleum corp closed 784 short of its 52week high 3350 which the company reached on july 1st the stock underperformed when compared to some of its competitors tuesday as exxon mobil corp xom fell 058 to 5455 chevron corp cvx fell 044 to 9706 and conocophillips cop fell 046 to 5598 trading volume 113 m remained 40 million below its 50day average volume of 152 m editors note this story was autogenerated by automated insights an automation technology provider using data from dow jones and factset see our market data terms of use