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December 1, 2021updated 27 Apr 2022 12:20pm

Minami-Nagaoka Conventional Gas Field, Japan

By Carmen

Minami-Nagaoka is a producing conventional gas field located onshore Japan and is operated by Inpex.

Field participation details

The field is owned by Inpex.

Production from Minami-Nagaoka

The Minami-Nagaoka conventional gas field recovered 89.39% of its total recoverable reserves, with peak production in 2012. The peak production was approximately 3.21 thousand bpd of crude oil and condensate and 131 Mmcfd of natural gas. Based on economic assumptions, production will continue until the field reaches its economic limit in 2038. The field currently accounts for approximately 45% of the country’s daily output.

Remaining recoverable reserves

The field is expected to recover 26.36 Mmboe, comprised of 158.15 bcf of natural gas reserves. Minami-Nagaoka conventional gas field reserves accounts 0.01% of total remaining reserves of producing conventional gas fields globally.

About Inpex

Inpex Corp (Inpex) is an integrated energy company. It explores for, develops and produces oil and natural gas from its assets in domestic and international regions. The company markets crude oil, condensate, natural gas, and LNG. It has working interest in various upstream projects in Asia and Oceania, Eurasia, the Middle East and Africa, and Americas. The company owns and operates liquefied natural gas (LNG) terminal and natural gas pipeline in Japan. Inpex also focuses on renewable energy through geothermal and solar power generation. The company offers investments and lending services to other oil and gas companies. Inpex is headquartered in Minato-Ku, Tokyo, Japan.


Information on the field is sourced from GlobalData’s fields database that provides detailed information on all producing, announced and planned oil and gas fields globally. Not all companies mentioned in the article may be currently existing due to their merger or acquisition or business closure.

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