Russian Grain Markets: 17-21 December 2018 Domestic prices for milling and feed wheat as well as corn continued to rise in RUB expression but decrease in USD expression. However, those for milling rye and feed barley remained stable in RUB expression while also declining in USD expression. The average milling wheat export price grew +$2/MT to $238/MT FOB Black Sea, and purchase prices at seaports increased in RUB expression but decreased in USD expression to $201-205/MT CPT-Black Sea port. The average feed barley export price fell to $238/MT FOB, and the average CPT-Black Sea port dropped to $203/MT. GEOGRAPHICALLY 3rd grade soft milling wheat prices grew in Volga Valley (+$1.20/MT), the South (+$0.50/MT), Central and Siberia (+$2.20-2...