Oil is the basic need for the countries. In all over the world only few countries produce oil but all countries import it and used .Oil fulfills the basic energy needs of any country.Muslim countries are the most largest oil producing countries. The ratio of producible oil reserves to total oil in place for given field is often referred to as recover factor .Some countries are big reserve of oil.We are providing here the list of Top 10 Oil Reserving Countries.     10. Nigeria There are [...]