Grain Markets Monday Dec 31, 2012 at 8:57 AM Dec 31, 2012 at 8:59 AM Closing grain markets for Dec. 28. Kanza Co-op: Wheat $7.91; Corn $7.04; Milo $6.54; Soybeans $13.78Scoular cash prices: Wheat $7.96; Corn $7.04; Milo $6.64