shares of pioneer natural resources co pxd inched 037 higher to 19907 friday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 041 to 467703 and dow jones industrial average djia falling 001 to 3623166 this was the stocks sixth consecutive day of gains pioneer natural resources co closed 154 below its 52week high 20061 which the company achieved on january 6th the stock demonstrated a mixed performance when compared to some of its competitors friday as eog resources inc eog rose 276 to 9816 concho resources inc cxo fell 602 to 6560 and apa corp apa rose 017 to 2967 trading volume 32 m eclipsed its 50day average volume of 19 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