Minami-Nagaoka Gas Field

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The Minami-Nagaoka Gas Field (南長岡ガス田 Minami Nagaoka Gasu-den?) is a gas field located in the southwest of Nagaoka, Niigata Prefecture, Japan. It was discovered in 1979. One of the largest in Japan, the field has been in production since 1984, with the completion of the Koshijihara Gas Plant.[1] Even after more than 25 years of continuous output, Minami-Nagaoka still accounts for approximately 40% of Japan's total natural gas production.[2]


  1. ^ Inpex website History Retrieved on August 17, 2012
  2. ^ Inpex website Minami-Nagaoka Gas Field and Domestic Natural Gas Business Retrieved on August 17, 2012

Coordinates: 37°23′18″N 138°46′06″E / 37.38833°N 138.76833°E / 37.38833; 138.76833