Trading overnight and again during the day session were similar, while flooding from the heaviest storm-related rainfall ever to hit the continental U.S. has shut down export grain terminals along the Texas coast and closed oil refineries as well as stopped vessel and rail movements. General Comments 31 August is the first day for delivery intentions against September grain and soy complex futures contracts, and yesterday (29 August) saw quite a scramble by traders to exit positions in those contracts. Open interest (O/I) in September corn dropped 51,439 contracts to about 79,000. September O/I in soy complex contracts also dropped over 8,000 in the case of soybeans, more than 12,400 for soymeal and about 7,500 for soyoil, leaving relati...