The Street considers the daily pricing of diesel and petrol a positive step for oil-marketing companies (OMCs) because it can boost their marketing margins. While the pilot project on daily pricing for diesel and petrol is said to start next month, it will gradually be expanded to cover the entire country. Analysts at Jefferies say that the move should raise confidence over the sustainability of deregulation and is a positive as far as the outlook for marketing margins is concerned. It is not surprising then that the stock prices of Bharat Petroleum Corporation and Indian Oil Corporation (IOC)