Changes

On its website, Xstrata Coal states that "in December 1976, an Association Contract was signed between Carbocol S.A., a state owned coal company, and Intercor, an ExxonMobil affiliate, for the development of Cerrejón North Zone. In January 1999, an agreement with the Government of Colombia extended this phase an additional 25 years more, until 2034. In November 2000, the Colombian Government sold Carbocol S.A.’s (50%) participation in Cerrejón North Zone Association Contract, to a consortium made up of subsidiary companies of BHP Billiton plc, Anglo American plc and Glencore International AG. In February of 2002, the consortium acquired the remaing 50% from Intercor and merged Intercor with Carbones del Cerrejón S.A to create Carbones del Cerrejón LLC, Cerrejón."<ref name="Xstrata">Xstrata Coal, [http://www.xstratacoal.com/EN/Operations/Pages/Cerrej%C3%B2n.aspx "Cerrejòn"], Xstrata Coal website, accessed August 2010.</ref>

==Production==

In 2009 Cerrejon coal mine produced 30.3 million tonnes. Cerrejon Coal Company states that in 2009 56% pf its production was exported to Europe, 17% to North America, 12% to Central and South America and 15% to "other destinations".<ref>Cerrjon Coal Company, [http://www.cerrejoncoal.com/secciones/CERWEB/ENGHOME/MENUPRINCIPAL/EXPORTACION/VOLUMENEXPORTACIONES/seccion_HTML.html "Exports volume"], Cerrjon Coal Company website, accessed June 2010.</ref> Since 1985, Cerrejon Coal Company has exported produced 444.9 million tonnes.<ref>Cerrjon Coal Company, [http://www.cerrejoncoal.com/secciones/CERWEB/ENGHOME/MENUPRINCIPAL/EXPORTACION/RESULTADOSEXPORTACION/seccion_HTML.html "Export results"], Cerrjon Coal Company website, accessed June 2010.</ref>