Dec 20 Corn closed at $3.3375/bushel, down $0.0275 from yesterday's close.  Sep 20 Wheat closed at $5.2675/bushel, up $0.02 from yesterday's close.  Nov 20 Soybeans closed at $8.775/bushel, up $0.0225 from yesterday's close.  Dec 20 Soymeal closed at $292.3/short ton, up $0.6 from yesterday's close.  Dec 20 Soyoil closed at 29.09 cents/lb up 0.39 cents from yesterday's close.  Aug 20 Live Cattle closed at $98.8/cwt down $0.85 from yesterday's close.  Aug 20 Feeder Cattle closed at $136.725/cwt down $0.325 from yesterday's close.  Aug 20 Lean Hogs closed at $49.925/cwt down $1.35 from yesterday's close.  Aug 20 WTI Crude Oil closed at $40.27/barrel up $0.17 from yesterday's close.   ...