Jowzjan Province
With Soviet assistance, exploitation of Afghanistan's natural gas reserves began in 1967 at the Khowaja Gogerak field, 15 kilometers east of Sheberghān in Jowzjan Province. The field's reserves were thought to be 67 billion cubic meters. In 1967, the Soviets also completed a 100-kilometer gas pipeline linking Keleft in the Soviet Union with Sheberghān.