Pioneer also names new chairman
Pioneer Natural Resources Chairman Scott Sheffield returned as CEO today.

In a surprise shift in the corner office that is effective immediately, Pioneer Natural Resources Company (stock ticker: PXD, $PXD) let the world know this afternoon that Timothy L. Dove has retired as CEO and director and that its board chairman, Scott D. Sheffield, will return to the CEO post at Pioneer. Sheffield was Pioneer’s first CEO, serving in the role from 1997 to 2016. He has served as chairman since 1999.

The company also said that Lead Director J. Kenneth Thompson has been named chairman of the board, effective immediately. Thompson commented about the changes: “When it became clear that Tim would retire, we asked Sco...

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