Petroleum Minister Murli Deora today dismissed reports of diminishing oil stocks in Mumbai because of non-operation of ports after the oil spill off the coast of the metropolis. Talking to reporters in New Delhi, he said, there is enough oil stock to last till this oil spill is cleared.The Mumbai port and the Jawaharlal Nehru Port Trust are closed to cargo traffic after the oil spill off the coast due the sinking of MSV Chitra.