Refined oil futures prices rose up marginally by Rs 7.95 to Rs 645 per 10 kg today as traders enlarged their positions in tandem with a firm trend in the spot market.
Fall in supplies from overseas markets also supported the rise in prices.
At the Multi Commodity Exchange, refined soya oil for July delivery rose by Rs 7.95, or 1.25% to Rs 645 per 10 kg, with a trading volume of just one lot.
Similarly, the oil for August delivery surged by Rs 7.90, or 1.24%, to Rs 644.90 per 10 kg, with a business turnover of just lot.
Analysts said increased buying by speculators on rising demand in the spot market, mainly led to the rise in refined soya oil prices in futures trade.