Futures contracts of edible oils on the domestic exchanges traded mixed. Soybean and mustard futures traded lower while soyoil and crude palm oil traded higher. Increased fresh arrivals of soybean in key growing regions further weighed on the sentiments. Extending weakness from the previous session, mustard futures on the NCDEX settled around 1% lower due to subdued buying from oil millers. Higher carryover stock from 2016-17 season also pulled down the prices.