Futures contracts of most components of the edible oil basket, barring mustard, traded lower on domestic exchanges. Extending weakness from previous session, soybean futures on the National Commodity and Derivatives Exchange closed a tad lower tracking weakness in key contracts on Chicago Board of Trade. Fall in acreage under the oilseed in ongoing kharif season limited any sharp fall of prices. Refined soyoil futures on the NCDEX and crude palm oil on the Multi Commodity Exchange fell due to subdued demand at higher price level. Contracts of mustard on the NCDEX ended flat as gains due to domestic demand were negated by weak export demand for mustard meal.