shares of pioneer natural resources co pxd shed 356 to 22025 tuesday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 040 to 382414 and dow jones industrial average djia falling 003 to 3313637 the stocks fall snapped a twoday winning streak pioneer natural resources co closed 6821 short of its 52week high 28846 which the company achieved on may 31st the stock demonstrated a mixed performance when compared to some of its competitors tuesday as eog resources inc eog fell 391 to 12445 devon energy corp dvn fell 551 to 5812 and occidental petroleum corp oxy fell 308 to 6105 trading volume 28 m eclipsed its 50day average volume of 22 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