Ken Hendricks and Erin Campbell have been appointed to the four-member Wyoming Oil and Gas Conservation Commission by Gov. Matt Mead. Hendricks, a petroleum engineer, recently retired from Anadarko Petroleum Corp. and would replace Tom Fitzsimmons, who has resigned. Campbell, who becomes state geologist on Nov. 21, would join the commission in mid-December, replacing Tom Drean, who is retiring as state geologist.