Shares of oil marketing companies saw heavy buying and rose as much as 9 per cent on Friday on fall in global oil prices. Continuing their rally, shares of Hindustan Petroleum Corporation Ltd zoomed 8.93 per cent to settle at Rs 596.75 and Indian Oil Corporation gained 4.42 per cent to Rs 364.70 on the BSE. Similarly, shares of Bharat Petroleum Corporation Ltd jumped 3.58 per cent to Rs 745.85 apiece.