Katakai is a producing conventional gas field located onshore Japan and is operated by Japan Petroleum Exploration.

Field participation details

The field is owned by Japan Petroleum Exploration.

Production from Katakai

The Katakai conventional gas field recovered 72.07% of its total recoverable reserves, with peak production in 2016. The peak production was approximately 0.62 thousand bpd of crude oil and condensate and 40 Mmcfd of natural gas. Based on economic assumptions, production will continue until the field reaches its economic limit in 2054. The field currently accounts for approximately 18% of the country’s daily output.

Remaining recoverable reserves

The field is expected to recover 24.96 Mmboe, comprised of 149.78 bcf of natural gas reserves. Katakai conventional gas field reserves accounts 0.01% of total remaining reserves of producing conventional gas fields globally.

About Japan Petroleum Exploration

Japan Petroleum Exploration Co Ltd (JAPEX) is an integrated energy company that carries out exploration, development, production and sale of crude oil and natural gas. It also purchases, sells, transports, and supply crude oil and natural gas through pipelines, tank trucks and tankers. The company also manufactures, sells and transports petroleum products, and bitumen. It also focuses on the development of renewable energy including geothermal power generation and offers contract drilling services. The company has main offices in Japan, the US, the UK, Indonesia and the UAE, and operations in the US, Indonesia, Canada, Iraq and Russia. JAPEX is headquartered in 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.