New Delhi, Nov. 28 -- Petrol and diesel prices may have risen in eight of the past nine days, but further price hikes would be needed to keep auto fuel marketing margins of oil retailers high, experts have said.

High marketing margins is required by oil companies to maintain profitability in a market where global oil prices are firming up while refining margins are shrinking.

According to a report by ICICI Securities, auto fuel net marketing margin is has remained at comfortable levels of Rs 4.2 per litre in current financial year (FY21) till date. It has been Rs 3.34 per litre in Q3FY21- till date and Rs 3.59 a litre on November 25, 2020.

However, a rise in international auto fuel prices would have meant net margin fall to Rs 1.05 per l...