Japan Petroleum Exploration Company Limited is a hydrocarbon exploration, production, and transportation company. JAPEX explores and produces crude oil, natural gas, and liquefied natural gas reserves worldwide. JAPEX has proven reserves of 272 million barrels in Japan and the rest of the world. Aside from operations in Hokkaido, Akita, Yamagata and Niigata in Japan, JAPEX has major operations in Canada, Indonesia and Libya. Although currently a private company, the Government of Japan owns a 34% stake in JAPEX. Wikipedia