{{#badges: Climate change |CoalSwarm}} The U.S. Geological Service reports that in 2007 coal mining in Romania dropped substantially as a result of the need to withdraw subsidies in order to comply with European Union guidelines. ==Coal mining== The USGS estimates that Romania mined approximately 2.5 million tonnes of anthracite and 35 million tonnes of lignite.<ref name="USGS">Mark Brininstool, [http://minerals.usgs.gov/minerals/pubs/country/2007/myb3-2007-ro.pdf "The Mineral Industry of Romania"], U.S. Geological Service, September 2009.</ref> The main coal mining operations were:* the mining of approximately 10.4 million tonnes of bituminous coal from the Valea Jiului Mining Complex, near Hunedoara by Compania Nationala a Huilei-Petrosani;* the mining of approximately 20.3 million tonnes of lignite from the Jiu Valley coal mine in Oltenia County, north of Craiova; and* the mining of approximately 8.7 million tonnes of lignite from a mine about 50 kilometers north of Bucharest by Societatea National a Carbunelui-Ploiesti.<ref name="USGS">