We sampled Skiatook Lake for three black bass species with nighttime electrofishing in spring 1997 and 1998 to assess resource overlap (habitat and prey) among species. Skiatook Lake was stratified into four areas: Bull and Hominy creeks in the upper lake, mid lake, and lower lake. In general, smallmouth and largemouth bass were more abundant throughout the reservoir in 1998 than in 1997, whereas spotted bass abundance remained constant. In 1997, spotted bass abundance exceeded either congener throughout the reservoir, largemouth bass were distributed equally among areas, smallmouth bass were confined to the lower lake. In 1997, spotted bass consumed mostly insects whereas largemouth and smallmouth bass consumed mostly fish. In 1998, species abundances were equal throughout the reservoir except spotted bass exceeded smallmouth bass abundance in Bull Creek. In 1998 spotted bass ate mostly crayfish, largemouth bass ate mostly fish, and smallmouth bass ate mostly insects. In 1997, we found no evidence of habitat and prey overlap in any area of the reservoir. In 1998, however, species exhibited both habitat and prey overlap in the lower lake . If the abundance of these species increases, resource overlap may increase leading to bottlenecks and reduced condition and fitness.