Romania's mineral production is adequate to supply its manufacturing output. Energy needs are also met by importing bituminous and anthracite coal and crude petroleum. In 2007 approximately 13.4 million tons of anthracite coal, approximately 4,000 tons of tungsten, 565,000 tons of iron ore, and 47,000 tons of zinc ore were mined. Lesser amounts of copper, lead, molybdenum, gold, silver, kaolin, and fluorite also were mined. In 2004, according to Europaworld.com, the main mining industries in thousand metric tons were: • brown coal (including
lignite): 31,592 •
crude petroleum: 5,465 •
iron ore: 275 •
copper 786.8 •
lead concentrates: 15 •
zinc concentrates: 18.6 •
salt (unrefined): 2,398 •
natural gas (million cubic meters): 13,290 == Related industries ==