Iwafune-oki is a producing conventional gas field located in shallow water in Japan and is operated by Japex Offshore. According to GlobalData, who tracks more than 34,000 active and developing oil and gas fields worldwide, Buy the profile here.

Field participation details

The field is owned by Idemitsu Kosan, Japan Petroleum Exploration and Mitsubishi Gas Chemical.

Production from Iwafune-oki

The Iwafune-oki conventional gas field recovered 81.12% of its total recoverable reserves, with peak production in 2006. The peak production was approximately 1.95 thousand bpd of crude oil and condensate and 18.00 Mmcfd of natural gas. Based on economic assumptions, production will continue until the field reaches its economic limit in 2044. The field currently accounts for approximately 9% of the country’s daily output.

Remaining recoverable reserves

The field is expected to recover 9.26 Mmboe, comprised of 2.45 Mmbbl of crude oil & condensate and 40.89 bcf of natural gas reserves.

For more details on the Iwafune-oki Conventional Gas Field, buy the profile here.


GlobalData, the leading provider of industry intelligence, provided the underlying research used to produce this article.

This information is drawn from GlobalData’s Oil & Gas Intelligence Center, which provides detailed profiles of 34,000+ oil and gas fields, 400,000+ exploration blocks, 1,100+ LNG terminals, 3,400+ gas processing plants, 5,000+ storage terminals, and 8,000+ pipelines, 1,400+ refineries and 13,000+ petrochemical plants worldwide.