 Here's a market update from our studios at Oklahoma National Stockyards. August live cattle down 10 cents, 182.27. October down 20, 183.87. December's unchanged, 185.47. August feeder cattle up 15 cents, 258.80. September up 22, 258.32. October's up 27, 257.82. The 72nd annual convention of the Oklahoma Cattlemen's Association coming July 19th and 20th at the Embassy Suites in Norman.