Patterson-UTI (PTEN) Closes Buyout Deal With Pioneer Energy Posted byZacks Equity Research October 5, 2021 Leave a comment on Patterson-UTI (PTEN) Closes Buyout Deal With Pioneer Energy With the Pioneer buyout, Patterson-UTI (PTEN) owns 166 super-spec rigs in the United States with nearly half the specimens being outfitted with alternative power sources to curb toxic emissions.