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FY 2017 Japan’s Independent Development Ratio of Oil and Natural Gas Released

July 27, 2018

Agency for Natural Resources and Energy

Japan’s independent development ratio of oil and natural gas in FY 2017 was 26.6%, down by 0.8% from the previous year.

1. Independent development ratio

Japan’s independent development ratio of oil and natural gas (hereinafter “the Ratio”) is defined as the share of the offtake amount of oil and natural gas under the control of Japanese entities (including domestic production), out of the total amount of imported and domestically-produced oil and natural gas.

As Japan is a country largely dependent on imports from abroad for its oil and natural gas, it is indispensable that it secure stable supplies of natural resources and energy. In light of this, the Fifth Strategic Energy Plan, approved by the Cabinet in July 2018, sets a goal that Japan should increase the Ratio to over 40% in 2030.

2. Factor analysis

The Ratio in FY 2017 decreased from the previous year. This decrease is estimated to be caused by an increase in oil production in some oil and gas fields in Kazakhstan and other countries, a decrease in imports of oil and natural gas, restitution of mining sites in Indonesia from a Japanese company to the government of the country, and other factors.

Changes in Japan’s independent development ratios of oil and natural gas since FY2009

Fiscal year Offtake amount of oil/natural gas that is under the control of Japanese enterprises (including domestic production)
(Million BD)
The Ratio (%)
2009 1.241 23.1
2010 1.297 23.5
2011 1.296 22.6
2012 1.294 22.1
2013 1.364 23.3
2014 1.391 24.7
2015 1.529 27.2
2016 1.533 27.4
2017 1.452 26.6

* Offtake amount for natural gas is the crude oil equivalent.

Changes in Japan’s ratios of independent development for oil and natural gas since FY1973

Note: From FY1973 to FY2008, the calculation for the Ratio was based exclusively on oil amounts. Natural gas was not factored into the calculation. Since FY2009, it has been calculating the combined amount of oil and natural gas.

Division in Charge

Petroleum and Natural Gas Division, Natural Resources and Fuel Department, Agency for Natural Resources and Energy