Draft:Yabase Oil Field
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| Yabase Oil Field | |
|---|---|
 帝国石油 YR-72基地 | |
| Country | Japan |
| Region | Akita Prefecture |
| Offshore/onshore | Onshore |
| Coordinates | 39°43′45″N 140°5′35″E / 39.72917°N 140.09306°E |
| Operator | INPEX JAPAN |
| Field history | |
| Discovery | 1907 |
| Start of development | 1935 |
| Peak year | 1955 |
| Production | |
| Current production of oil | 129 barrels per day (~6,430 t/a) |
The Yabase Oil Field (八橋油田:やばせゆでん) is an oil field located in Yabase, Akita City, Akita Prefecture.
Overview
[edit]INPEX JAPAN's East Japan Business Headquarters Akita Plaza produces oil, with an estimated annual production of approximately 7,500 kiloliters (47,200 barrels) as of 2026.[1] The oil wells are centered in the Yabase and Terauchi districts of Akita City, extending north to the Sotoasakawa district and south to the Araya district. It was the largest oil field in Japan from the late 1940s to the 1950s, and since the start of production, cumulative crude oil production has reached 5.87 million kiloliters (as of the end of December 2023).
The extracted crude oil is refined at the Sotoasakawa plant and shipped via the Akita National Petroleum Reserve Base on the Oga Peninsula. Natural gas is also produced.[2]
The Yabase and Kurokawa oil fields are among the few remaining oil fields that continue to produce oil. At the Yabase oil field, INPEX continues to drill exploratory wells every few years, but it is said that they have yet to strike oil.[3]
On the other hand, in areas such as Kami-Shinjo and Shimo-Shinjo, there are occasional incidents where crude oil spontaneously erupts and flows into farmland.
History
[edit]
The Yabase oil field had been explored and test-drilled since around 1907 (Meiji 40), but in 1935 (Showa 10), Nippon Mining (now ENEOS) began full-scale oil production. Nippon Oil also soon began development, and as a result, the Yabase oil field's production became comparable to that of the Kurokawa oil field, making Akita Prefecture known as an oil kingdom, producing over 70% of Japan's oil. The crude oil produced in Yabase and Kurokawa was refined mainly at refineries in the Tsuchizaki Port area and the Funakawa area (Funakawa, Oga City), and then shipped throughout Japan. Consequently, on August 14, 1945 (Showa 20), shortly before the end of the war, the Tsuchizaki refinery was bombed (Tsuchizaki Air Raid), resulting in over 100 deaths.
After the war, on August 14, 1947 (Showa 22), Emperor Showa's post-war motorcade passed in front of the mine. When the workers greeted the Emperor, he responded with a bow. The Yabase oil field was developed by Teikoku Oil (now INPEX; since October 2024, its subsidiary INPEX JAPAN has taken over), which drilled oil wells in various locations to produce oil. As a result, in the 1950s, it reached an annual production of 300,000 kiloliters (1.9 million barrels), making it the largest in Japan, surpassing oil fields in Hokkaido and Niigata. However, since the 1960s, its oil production has declined sharply, and current production is less than 10% of what it was then. Furthermore, oil production continues to decline.
External links
[edit]- INPEX-Yabase Oil Field
- Workers work at Akita oil field in Yabase, Japan. HD Stock Footage
- Preliminary Research on Akita Oil Fields
Reference
[edit]- ^ トランプ演説“失望” 株価1276円安、原油価格は上昇で1バレル106ドル台に いま日本の「八橋油田」に“期待”も…ガソリンスタンドには「出荷停止の通知書」 『TBS NEWS DIG』 2026年4月2日号
- ^ 【ニッポンの資源 現場を歩く】(1)原油 八橋油田（秋田県）市街地に点在 雇用に一役『日本経済新聞』朝刊2018年9月4日（マーケット商品面）2019年2月1日閲覧。
- ^ INPEX to Conduct Drilling in the North Area of Yabase Oil Field, Japan 2015-09-30