INPEX Corporation

Japan's largest oil and gas E&P company. Founded as a major energy developer, INPEX has diversified into next-generation energy solutions including hydrogen, ammonia, CCS/CCUS, and renewable energy. In partnership with Osaka Gas, INPEX is leading the development of CO2-methanation technology for carbon-neutral city gas

Operating the Kashiwazaki Hydrogen Park, opened November 21, 2025, for blue hydrogen and ammonia demonstration using Japanese natural gas with CO2 capture and storage in the depleted Hirai gas field. First model in Japan for local production and consumption of blue hydrogen and ammonia, including power generation and s

INPEX is Japan’s largest upstream oil and gas company, founded in 1966. It currently leads efforts to diversify into low-carbon energy, focusing on hydrogen and ammonia alongside carbon capture and storage (CCS/CCUS) projects. Operator of the Minami-Nagaoka gas field, and runs the Ichthys LNG project in Australia as a