Serbia has an abundance of coal, and significant reserves of oil and gas. Serbia's proven reserves of 5.5 billion tonnes of coal lignite are the 5th largest in the world (second in Europe, after Germany). Coal is found in two large deposits: Kolubara (4 billion tonnes of reserves) and Kostolac (1.5 billion tonnes). Despite being small on a world scale, Serbia's oil and gas resources (77.4 million tonnes of oil equivalent and 48.1 billion cubic metres, respectively) have a certain regional importance since they are largest in the region of former Yugoslavia as well as the Balkans (excluding Romania). Almost 90% of the discovered oil and gas are to be found in Banat and those oil and gas fields are by size among the largest in the Pannonian basin but are average on a European scale.