The Oklahoma inventory of cattle on feed for feedlots with capacity of 1,000 or more head, totaled 320 thousand head on August 1, 2012, unchanged from the previous month but down 11 percent from August 1, 2011. Placements during July were 68,000, down 21 percent from one year ago. Marketings of fed cattle during July were 66,000 head, down 11 percent from the same month last year. Other disappearance during July totaled 2,000 head.