Between the 1960s and mid-1980s, the Soviets had identified more than 15 Oil and gas fields in northern Afghanistan. Only three gas fields -- Khwaja Gogerdak, Djarquduk, and Yatimtaq were developed in the area surrounding Sheberghan, which is located about 120 kilometers west of Mazar-i-Sharif. Afghan Natural Gas production reached 275 million cubic feet per day (Mmcf/d) in the mid-1970s. The Djarquduk field was brought online during that period and boosted Afghan natural gas output to a peak of 385 Mmcf/d by 1978. About 100 mmcf/d of this amount was used locally in gas distribution systems in Sheberghan and Mazar-i-Sharif as Well as at a 100,000 mt/y urea plant located near Mazar-i-Sharif. One oil field, Angot, was developed in the late 1960s, but aside from production tests, oil production was intermittent, with daily outputs averaging 500 b/d or less.