State-owned fuel marketing companies are likely to revert to daily revision in prices of petrol and diesel only when international oil prices stabilise below USD 80 per barrel on a sustained basis, industry officials said. Three state-owned fuel retailers — Indian Oil Corporation Ltd (IOCL), Bharat Petroleum Corporation Ltd (BPCL) and Hindustan Petroleum Corporation Ltd (HPCL) — which control roughly 90 per cent of the market, have kept petrol and diesel prices on freeze for a record 20th month in a row.