This document summarizes a study that used microalgae grown on a Rotating Algal Biofilm Reactor (RABR) to treat Utah produced water and produce biocrude oil. Approximately 93 million barrels of produced water are generated annually in Utah, containing nutrients that can feed microalgae cultivation. The RABR consisted of polystyrene disks that were rotated to allow algae to grow as a biofilm. The algae were grown on produced water and converted to biocrude oil via hydrothermal liquefaction. Tests achieved a 35% biocrude yield with energy content comparable to petroleum crude. Future work will optimize the system and test integrating additional cyanobacteria to further treat the produced water.