Sustainability Report 2022

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Sustainability Report 2022

Proper Waste Management

Recognizing that proper management of waste is a critical environmental issue around the world, in December 2022, we established and issued our Policy and Commitments on Waste Management, through a resolution of the Board of Directors.

Policy and Commitments on Waste Management

Our Policy

We ensure our actions reflect appropriate waste management, the 3Rs (reuse, reduce, recycle), and efficient use of resources to reduce environmental impact and form a circular economy.


  1. Reduce waste and implement appropriate waste segregation and collection
    • We will strive to reduce the amount of waste generated from our activities and implement appropriate waste segregation and collection.
  2. Implement appropriate waste treatment and disposal
    • We will treat and dispose waste from our activities in accordance with the law.
    • When outsourcing waste treatment and disposal to external contractors, we will undertake an appropriate contractor selection procedure and conduct regular inspections and audits to ensure that outsourced waste treatment and disposal is carried out appropriately. 
  3. Promote measures on the efficient use of resources
    • We will identify waste management issues in our businesses and promote measures on the efficient use of resources, including re-use and recycling.
  4. Contribute to the formation of a circular economy
    • We will aim to contribute to the formation of a circular economy by building new business models, promoting innovation and leveraging our business operations.

More on Policy and Commitments on Waste Management (

Commitments on Recycling and Proper Disposal

We actively practice the three Rs (3Rs) of environmental management—reduce, reuse, and recycle—at our projects, offices, and other sites to reduce our environmental impact.

We also properly manage, treat, and dispose of waste generated by our operations in line with the laws and regulations of countries in which we operate our projects. We create waste management plans for waste generated at our operator project sites that incorporate legal requirements, risk management methods, treatment and disposal methods, and audit plans.

When we are unable to viably reuse waste generated by our operations, we properly treat and dispose of it via licensed waste service providers. For our operator projects, we conduct annual on-site inspections of industrial waste service providers to ensure our waste is being properly treated and disposed of.

In FY2022, due to ongoing COVID-19-related restrictions to on-site inspections in Japan, we continued to use a combination of online methods, including telephone interviews, to monitor the providers.

Inspections of waste disposal services
((n) shows the number of inspections conducted through remote interviews.)





20 (11)

6 (0)


22 (4)

42 (24)

Annual waste output in Japan & overseas

Annual waste output in Japan & overseas (bar chart)

Annual waste output types

Annual waste output types (bar chart)

The amount of waste generated by the entire Group in FY2022 was approximately 45,000 tons. Of the 16,000 tons of waste produced in Japan, around 2,000 tons was recycled. The amount generated by our overseas projects was approximately 29,000 tons. The actual amounts of waste generated by each of our sites varies considerably depending on their activities. In FY2022, our waste increased mainly in Japan due to drilling work.

Efforts to Create a Circular Economy

In addition to our usual efforts to properly manage waste and further implementation of the 3Rs, we will work to create a circular economy within our business operations going forward.

As part of these efforts, and as a first in Japan, our subsidiary INPEX Logistics (Japan) Co., Ltd., ITOCHU Corporation, and ITOCHU ENEX launched a collaboration in FY2022 to use renewable diesel—a fuel derived from renewable resources—in tanker trucks.

INPEX Logistics is using renewable diesel from Neste OYJ,1 the world’s leading producer of renewable fuel, to fuel 18 tank trucks transporting domestic crude oil and petroleum products in the Hokuriku and Koshinetsu regions.

1 Renewable diesel from Neste Oyj: Made from food competition-free waste cooking oil, animal oil, and other sources, and expected to reduce GHG emissions by about 90% compared with petroleum-based diesel on a life-cycle assessment basis

Truck Using Renewable Diesel (photo)
Tanker truck using renewable diesel