The North Bronte area interested Lion Oil Co. on the basis of surface, isopachous, and magnetic studies. A large block of acreage was acquired and explored by the seismograph. A well was drilled on the shooting and proved the shooting to be reliable. A velocity survey in this well, however, indicated that the map of the reflective event identified as Ellenburger was actually Caddo. Additional shooting was done before the Lion No. 1 Edwards, the discovery well of the Bronte (Ellenburger) field, was drilled. The discovery well of the Rawlings field was drilled by Humble on seismic information. There are 8 producing zones in these fields. Shooting costs and permit fees have remained amazingly constant through the years.