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The 10 biggest silver mines in the world. Mexico, the world's biggest silver producing country, and Poland host three each of the world's 10 biggest silver mines. Bolivia, Turkey, Peru and Australia host the remaining four. Mining-technology.com profiles the 10 biggest silver mines in the world, based on contained silver reserves.
The petroleum sector is crucial to the Mexican economy; while its oil production has fallen in recent years, oil revenues still generate over 10% of Mexico's export earnings. High taxes on the revenues of the state oil monopoly Pemex provide about a third of all the tax revenues collected by the Mexican government.emex is Mexico's state-owned petroleum company and the sole supplier of all commercial gasoline (petrol/diesel) stations in the country. Cantarell Field is the largest oil field in Mexico and one of the largest in the world producing. As of Jan 2001, Mexico has approximately 10.42 billion barrels (1.657 Ã10.