The move is expected to enhance the field’s recoverable reserves as well as extend production life at Japan’s largest natural gas fields while providing a stable supply of energy to the Japanese market.

The company’s work will include reinstalling a compressor and separator to enhance the gas processing systems efficiency.

In addition to increasing recoverable reserves of natural gas and condensate by roughly 20%, the upgrade will extend the life of the Minami-Nagaoka Gas Field by nearly 20 years beyond current estimates.

Inpex has been producing natural gas and condensate at the Minami-Nagaoka Gas Field located 10km southwest of the city of Nagaoka, since 1984.

The gas field produces approximately 123 million standard cubic feet of natural gas, as well as approximately 3,100 barrels of condensate every day.

Inpex will process the natural gas from the gas field at Koshijihara and Oyazawa plants and will be delivered to consumers through 1,400km natural gas trunk pipeline network extending across the Kanto-Koshinetsu region.