halliburton more than doubled its profits in the third quarter from a year ago fueled by strong demand for oilfield services as energy prices rose top oilfield service providers like halliburton ticker hal and schlumberger slb have been busy as international sanctions in response to russia’s attack on ukraine war have shaken up energy markets and increased prices encouraging drilling activity brent crude  the international standard averaged above 100 through most of the third quarter up by doubledigits percentages from a year ago