Some 60% of the dues has to be paid to IOC and the rest to Hindustan Petroleum Corp. Ltd and Bharat Petroleum Corp. Ltd. "Letters have gone to them (airlines) and they have started responding favourably. The airlines are talking to us. We ourselves are having a liquidity crunch," says a senior IOC executive who didn't want to be identified. IOC expects to end fiscal 2009 with Rs70,000 crore in losses.