Metals-to-oil conglomerate Vedanta's interest in buying Bharat Petroleum Corp Ltd (BPCL) is a natural progression towards downstream integration that will hedge its margins but there are doubts over its promoters' ability to raise finances for such acquisition, analysts said. While BPCL dividends could easily cover the cost of debt of any acquisition, "the question we have is how would Vedanta Ltd secure funding, given the worries on leverage at Vedanta and the parent?," JP Morgan said in a report.Buying a 75 per cent stake in BPCL (52.98 per cent of government and 22 per cent through open offer) would cost Vedanta Rs 64,200-97,600 crore depending on the price (Rs 395 to 600 per share).