As hydrocarbon production costs rise, the need for greater completion and production efficiency is becoming increasingly important. The Haley Field in the Delaware Basin of West Texas has begun utilizing frac baffles in order to improve the overall efficiency of the multi-stage completion process. The frac baffles, which are strategically placed within the casing string, allow for zonal isolation by means of dropping a frac ball that seats on the frac baffle at the specified depth. The isolated zone is then ready to be perforated and fractured. This paper provides an introduction to the frac baffle technology and shows how the utilization of frac baffles has improved the efficiency of the completion process.