Idemitsu Kosan Co., Ltd.

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Idemitsu Kosan Co., Ltd.

1-1, Marunouchi 3-chome
Chiyoda-ku, Tokyo
Telephone: (3) 3213-3115
Fax: (3) 3213-9354
Web site:

Private Company
1911 as Idemitsu & Co.
Employees: 3,872
Sales: ¥2.56 trillion ($19.38 billion) (2001)
NAIC: 324110 Petroleum Refineries

Idemitsu Kosan Co., Ltd., Japans second largest oil refiner, is named after its founder, Sazou Idemitsu. The company has a nationwide network of 23 overseas offices, 22 domestic offices, and 7,000 service stations. The Idemitsu groups primary activities are the securing of oil resources, crude oil refining, and petroleum product marketing. The group also has interests in alternative energy sources such as coal, uranium, and geothermal generating, as well as petrochemicals and related fields. The group operates nine tankers and five refineries, which produce oil, gasoline, kerosene, lubricants, and liquefied petroleum gas. Idemitsu Kosan is one of the most growth-oriented companies in Japan. The company is organized as a joint stock company, with all shares held by the Idemitsu family and by the employees.

Company Origins in the Early 20th Century

Sazou Idemitsu began his career selling lubricants in the northern part of Kyushu in Japan, as an agent for the Nippon Sekiyu (Oil) Co. Ltd., and established Idemitsu & Co. in 1911. In 1913, he began selling fuel oil for fishing boats at Shimonoseki port; this business opened up nationwide marketing opportunities. He studied fuel combustion efficiency and promoted fuel conversion from expensive paraffin oilkeroseneto cheaper raw light oil. In 1923, he became a pioneer of retailing methods by introducing small tanker vessels equipped with fuel meters, thus replacing canned fuel distribution for fishing boats. After his marketing success in Japan, he extended his sales activities to Manchuria. In 1914 he began to sell lubricants to the South Manchuria Railroad Co. Ltd., a Japanese-owned national railroad company that was central to Japans imperialistic plans for China, and to an expanding market in northeast China. At the time, the supply of lubricants to China was dominated by foreign companies such as Standard Oil, Royal Dutch/Shell group, through its Japanese subsidiary, Asiatic Petroleum Company. Idemitsu & Co. attempted to open up the market for Japanese companies by demonstrating the competitive quality and price of its goods. In 1916, Idemitsu opened the Dairen branch, competing with large foreign companies, and sold lubricants, fuel oil, cement, volcanic ash, and machine tools.

During the winters of 1916 to 1918, accidents frequently occurred on the South Manchuria railroad, as lubricants froze and axles often overheated. In 1919, the railroad company systematically tested the efficiency of every lubricant available and concluded that Idemitsus product was among the best. It granted exclusive agency to Idemitsu & Co. From 1919 to 1922 Idemitsu established further sales branches in Qindao in China, Taipei and Chilung in Taiwan, and Seoul in Korea. In 1929, Nippon Sekiyu (Oil) Co. established Taiwanese and Korean branches and began direct sales. Consequently, the sales activities of Idemitsu, as an agent of Nippon Sekiyu (Oil), had to be restricted in those areas.

Idemitsu expanded his business between 1920 and 1923 in spite of the postwar recession in the Japanese economy. After 1924 he experienced financial difficulties and closed several foreign branches quickly to protect his business. After 1931, he expanded again into the Manchurian market but with more careful strategic planning.

In 1932, after the Japanese established a puppet government in Manchuria, the Japanese government controlled major commodities and industries. As a result, the functions of Idemitsu were limited to those of a distributor under the controlled economy. By 1939 oil distribution in Japan was tightly controlled by the government and the sales divisionswholesale and retailof each oil company were organized into regional distribution associations. Sazou Idemitsu was forced to reduce sales activities. To ensure the safety of his business, he decided to diversify beyond oil sales into transportation by tanker with his first oil tanker, Nisshomaru, launched in 1938; oil refining through investment in Kyushu Oil Refinery Co. Ltd.; and other products.

In 1940, Idemitsu & Co. moved its domestic headquarters from Moji City in Kyushu to Tokyo and established a new joint stock company, Idemitsu Kosan K.K., with a capital of ¥4 million. The Chinese and Manchurian interests were reorganized into separate regional subsidiaries. In 1939, Idemitsu began to build a 100,000-tonnage scale oil tank in Shanghai and imported paraffin oil (kerosene) and volatile oil, including benzine and naphtha, from the United States. After the outbreak of the Pacific War in 1941, however, almost all industries came under the control of the military government, and the activities of the company were limited to distribution.

Changes in the Petroleum Industry: 1940s60s

After World War II, the Japanese petroleum industry was controlled by the Supreme Commander for the Allied Powers (SCAP). In reality expatriate managers from Standard Oil, Shell, Caltex, Tidewater, and Union Oil constituted a Petroleum Advisory Group that decided Japanese petroleum policies. After the abolition in 1949 of the Oil Distribution Public Corporation, which had been set up during the war by the Japanese government to ration scarce oil, ten companies, including Standard Oil, Shell, and Caltex, were selected as petroleum products suppliers by the Ministry of International Trade and Industry (MITI). Idemitsu Kosan was included in the ten, and it dissolved its longstanding ties with Nippon Sekiyu (Oil) Co. Ltd.

In 1952, according to the peace treaty that became effective that year, the Japanese government abolished price controls on petroleum products and permitted a foreign exchange quota for importing naphtha. In 1951 Idemitsu Kosan was permitted by MITI to build a new tanker, which was launched in the same year. Using his new tanker, Idemitsu imported high-octane gasoline from California and sold it in the Japanese domestic market. Soon, however, the major U.S. oil companies decided that there were profits to be made from selling naphtha directly to Japan, and they began to restrict sales of naphtha to Idemitsu in California. Idemitsu changed its sourcing to Houston, Texas, but soon sales were restricted there also. Eventually, Idemitsu found a supplier in Venezuela. As naphtha sales in Japan by foreign companies increased, MITI felt the necessity for import restrictions to protect the domestic oil industry. MITI, therefore, passed the Oil Industry Law, which restricted the number of oil importers. As a result, only a few foreign companies could continue to import oil to Japan, and those that could were forced to do so through joint ventures with Japanese companies. Soon Japan saw the rapid establishment of its own petrochemical industry.

As Idemitsu was at that time only an importer and distributor of naphtha, his company was unable to import oil because of the domination of major foreign oil companies. It became essential, therefore, for Idemitsu to establish a reputation as an oil importer. The nationalization in 1953 of Anglo-Iranian Oil by the Iranian government and the resulting friction between the Iranian and British governments were fortuitous for Idemitsu. The Iranian government was unable to find a customer because of the dangerous wartime conditions, until Idemitsu decided to send his large tanker Nisshomaru to procure Iranian oil. He managed to secure a price 30 percent lower than the standard market price of the time. The British government was displeased by Idemitsus behavior, however, and lodged a complaint with MITI. Although Idemitsus action was applauded by the Iranians and the Japanese public, MITI felt that it had been put in a difficult position and Idemitsu fell out of favor with MITI officials. To protect his company against repercussions, Idemitsu tightened the closed ownership policy of his company still further.

Both the restriction of naphtha exports and the Japanese governments alteration of its policy to favor domestic refineries posed a serious threat to Idemitsu Kosan. Refineries had to be constructed quickly. In May 1956 Idemitsu began construction of Tokuyama oil refinery, which went into operation in March 1957. In 1960, after the addition of a second refinery facility, Tokuyama refinerys production capacity amounted to 140,000 barrels per day.

By the following decade, Idemitsu was concentrating its efforts on constructing refinery facilities. In 1963 the Chiba oil refinery was built, producing 100,000 barrels per day. This was followed by the Hyogo oil refinery in 1970, the Hokkaido oil refinery in 1973, and the Aichi oil refinery in 1975. Idemitsu began to pursue a vertical integration strategy, from crude oil importing to refinery and sales of products. In July 1962 the worlds largest tanker, Nisshomaru III, was completed, and Idemitsu established the Idemitsu Tanker Co. Ltd. to manage the oil transportation division. From 1962 to 1981, Idemitsu completed ten mammoth tankerswith a tonnage of more than 200,000and established a worldwide network for petroleum transportation.

In 1963, Idemitsus petrochemical facility in the Tokuyama refinery went into operation, and the company entered new fields of production. In 1964 Idemitsu established Idemitsu Petrochemical Co. Ltd., which became the center of the Tokuyama refinery complex. In 1962, MITI introduced the Oil Industry Law to control excess production and price competition between petroleum companies. Idemitsu opposed the law because it restricted competition and obstructed freedom of business. In the second half of 1962, Sekiyu Renmeithe Oil Producers Federationwas organized at the instigation of MITI and began to restrict production. The federation failed to prevent overproduction, however, and price competition resulted in spite of the cartel agreement. Idemitsu stood against such curbing of production, and it withdrew from the federation. In November 1965, the seamens union struck, the first such strike in Japanese history. The result was a major shortage of petroleum products. Idemitsu disregarded the quota and went into full production. The Oil Producers Federation and MITI criticized the decision, but Idemitsu continued to ignore the restriction until the strike ended.

Company Perspectives

Our corporate mission is to provide stable energy supplies. For the future, we intend to further strengthen our capabilities in manufacturing and distribution, to fulfill our mission to society as an energy corporation.

In February 1966 price control of petroleum products was abolished, and in August the production quota was repealed. In September 1966, MITI asked Idemitsu to return to the federation. The company did so in October. Sazou Idemitsu became the chairman of the board, although he retained effective control of the company, and his younger brother Keisuke Idemitsu took his place as president. This was a necessary step if the reconciliation with MITI was to take place.

Diversification and Reorganization: 1970s80s

Under the leadership of Keisuke Idemitsu, the company and its subsidiaries internalized such production functions as mining, refinery, and transportation of raw materials, and diversified the product range. In 1976, Idemitsu Japan Sea Oil Development Co. Ltd., established in 1961, was reorganized as Idemitsu Oil Development Co. Ltd. Idemitsu Oil & Gas Co. Ltd. started oil and gas drilling in the offshore field of Niigata Prefecture, beginning commercial production in 1984. In 1987 Idemitsu began to develop an oil field in southeast Turkey with the Finnish company Neste Oy. In 1989 Idemitsu acquired 10 percent ownership of two concessions of the Snorre oil field in the Norwegian sector of the North Sea. In the same year, Idemitsu acquired 25 percent ownership of the northwest continental shelf concession in Australia and participated in oil drilling operations in various places around the world, including the United Kingdom, Egypt, Gabon, Pakistan, Myanmar, Australia, and Brazil.

In 1977 the company set up a new energy department to promote alternative sources of energy. In 1980, imports of coal from Australia began and the Coal Cartridge System (CCS) was developed to supply coal for small users. The Chiba Bulk Terminal was built in 1986. From this period, Idemitsu started to acquire coal mining interests in Australia, including the Ebenezer mine in Queensland (225 million tons reserve) and the Muswellbrook mine in New South Wales (594 million tons reserve). By 1990 the company had acquired another four foreign coal mining operationswith an estimated total of 2.5 billion tons of depositsand had become the largest Japanese coal mining company.

In 1979 the Idemitsu Geothermal Development Co. Ltd. was established, and research drilling for geothermal generating plants began in the Hokkaido, Tohoku, and Kyushu concessions. In the Oita project in Kyushu a pilot plant was built. This was an experimental factory plant to examine technological capability and economic feasibility for starting up a master plant.

In the area of uranium exploration, Idemitsu took a 12.87 percent stake in the predevelopment work at the Cigar Lake Project in Saskatchewan, Canada, entering into partnership with CAMECO and COGEMA Canada. As the result of trial bowlingtest drilling to estimate the total amount of deposits availablethe uranium deposits at Cigar Lake were estimated at 192,500 tons, and mining operations were to begin in 1991.

After 1985, as a result of the reverse oil shock, the price of oil declined rapidly, and some of Idemitsus alternative energy resources development projects lost their economic effectiveness. Meanwhile, a debate was brewing as to whether Japan should allow imports of petroleum products. While most of the oil industry argued against inviting outside competition, Idemitsu argued in favor of doing so, as a means of stimulating competition and benefiting the consumer. This pro-competition stance was in keeping with the position it took in 1962, when it resigned from the Oil Producers Federation in protest of industry regulation.

Ultimately, the Japanese government settled on a compromise, which laid the foundation for free importation but placed conditions on it for at least a ten-year period. Passed in 1986, this was the Special Petroleum Law. Further relaxing of oil industry regulations followed through the end of the 1980s, with the government removing gasoline production quotas and making it easier for oil refineries to get capacity upgrade permits.

Key Dates

Sazou Idemitsu establishes Idemitsu & Co. as an agent for Nippon Sekiyu, a Japanese oil company.
Idemitsu opens Dairen branch.
Idemitsu begins to open sales branches in China, Taiwan, and Korea.
Idemitsu launches its first oil tanker.
Company relocates its headquarters to Tokyo and establishes new joint stock company, Idemitsu Kosan K.K.
Idemitsu is chosen as one of ten companies to be petroleum suppliers to the Ministry of International Trade and Industry; the company dissolves its ties with Nippon.
Company launches a new tanker and begins importing high-octane gasoline from California; company launches Apollo brand gasoline in Japan.
Company begins importing oil from Iran.
Idemitsu completes construction of Tokuyama Refinery.
Company incorporates Idemitsu Tanker Co.; company completes construction of worlds largest tanker.
Idemitsu completes its Chiba Refinery; company begins petrochemical operations at Tokuyama refinery.
Company establishes Idemitsu Petrochemical Co., Ltd.
Hyogo Refinery is completed.
Hokkaido Refinery is completed.
Aichi Refinery is completed.
Idemitsu begins producing oil in the offshore field of Niigata Prefecture.
Company begins to acquire coal mining interests in Australia.
Idemitsu acquires partial exploration rights in the Snorre Oil Field in the North Sea and in the continental shelf concession in Australia.
Company opens service stations in Portugal.
Company opens service stations in Puerto Rico.
Japans oil industry is deregulated.
Idemitsu opens Tokyos first self-service gasoline station.

Deregulation and Industry Restructuring: 1990s

Idemitsu kicked off the 1990s by expanding its service station network outside Japans borders for the first time. In 1991, the company opened its first stations in Portugal. The following year saw further expansion, with service stations opening in Puerto Rico.

Idemitsu also stepped up its production and refining capabilities in the early 1990s. Between 1992 and 1994, the company began production in its Snorre oil field in the North Sea and its Ensham coal mine in Australia. It also completed construction of a lubricating oil plant in the United States and initiated construction of a new residue-cracking unit at its Hokkaido refinery.

Although the Japanese government had been relaxing its regulatory holds since the middle of the 1980s, its biggest step toward deregulation came in 1996. In March of that year, Japans Ministry of International Trade and Industry abolished the Special Petroleum Law, thereby opening the door for free importation and intensifying competition, particularly in the gasoline markets. As the industry began to rethink its structure, further governmental regulations were altered. For example, in April 1998, the prohibition of self-service pumps at gasoline stations was lifted. Idemitsu took rapid advantage of this regulatory easing, opening Tokyos first self-service gas station that same month. The companys second and third self-service stations opened in June and July 1998, in Fujisawa and Chiba City.

Idemitsu proved to be aggressive and forward-thinking in environmental issues as well. The company had already introduced a gasoline brand that reduced benzene content to less than 1 percent in 1993three years before Japan even passed regulations restricting Benzene. In the spring of 1998, the company also introduced a low energy-consumption engine oil, ZEPRO Mile-Stage SJ.

Near the end of the 1990s, Japans oil consumption began to decline, as the country felt the effects of a prolonged economic crisis. As consumption slumped, it became apparent that the oil industry was too large, with a total daily capacity that well exceeded domestic demand. This intense domestic competition, coupled with increasing pressures from international competitors, led to consolidation within the industry. In 1999, Nippon Oil Co. and Mitsubishi Oil Co., Japans second and sixth largest oil companies, agreed to merge. The new entity, Nippon Mitsubishi Oil Corporation, became the largest oil company in the country, supplanting Idemitsu Kosan. Other industry mergers included Showa Shell and Japan Energy in 1999, and Tonen and General Sekiyu in 2000.

Looking Ahead

As the 21st century got underway, Idemitsu Kosan was the only major Japanese refiner to remain unmerged. According to the U.S. Energy Information Administrations April 2001 Japan Analysis Brief, Idemitsus debt load made it an unattractive partner for a merger. Relief from that debt might ultimately take the form of a public offering, according to the May 25, 2000 Asia Times Online. The Asia Times quoted Idemitsus president as saying, order to pursue stable management, we want to be able to tap the capital markets directly instead of being completely reliant on bank borrowing.

While no further news of an IPO surfaced, Idemitsu continued to pursue expansion opportunities. In March 2002, the company acquired the rights to develop offshore oil fields in Norways North Sea. It planned to begin production in 2003.

Principal Subsidiaries

Apollo Service Co. Ltd; Apollo (Thailand) Co., Ltd.; Apollo America Corporation; Idemitsu Apollo Corporation (U.S.A.); Apollo Resources Co., Ltd. (Australia); Kuo Horng Co., Ltd. (Taiwan); Idemitsu Petrochemical Co., Ltd.; Idemitsu Oil Exploration Co., Ltd.; Niigata Oil Exploration Co., Ltd.; Idemitsu Naoestu Oil Exploration Co., Ltd.; Idemitsu Petroleum Norge, a.s.; Idemitsu Snorre Oil Exploration Co., Ltd.; Idemitsu Norway Oil Exploration Co., Ltd.; Shigemune Sea Transportation Co. Ltd.; Idemitsu Tanker Co. Ltd.; Idemitsu Oil Development Co. Ltd.; Idemitsu Oil & Gas Co. Ltd; Idemitsu Queensland Pty., Ltd.; Petrochemicals Malaysia Sdn. Bhd.; Calbu Industry Co. Ltd.; Shiroyama Kosan Co. Ltd.; Polycarbonados do Brazil Co. Ltd.; Idemitsu Uranium Exploration Canada, Ltd.; Idemitsu Oita Chinetsu Co., Ltd.; Idemitsu Engineering Co. Ltd.; Uni Chemical Industry Co. Ltd.; Idemitsu Dupont Co. Ltd.; Idemitsu Credit Co. Ltd.; Idemitsu Chemicals U.S.A. Incorporated; Idemitsu China Co., Ltd.; Dalian Idemitsu Chinaoil Co., Ltd.; Idemitsu International (Asia) Pte., Ltd. (Singapore); Idemitsu International (Europe) P.L.C. (U.K.); Idemitsu International-America Latina Industria e Comercio Ltda. (Brazil); Gasolinas de Puerto Rico Corporation; Idemitsu Chemicals Co. Ltd.; Idemitsu D.S.M. Co. Ltd.; Okinawa Sekiyu Seisei Co., Ltd.; Toho Oil Co., Ltd.; Koshin Oil Co., Ltd.; Munakata Shipping Co., Ltd.

Principal Competitors

Cosmo Oil Company, Limited; Japan Energy Corporation; Nippon Mitsubishi Oil Corporation.

Further Reading

Fifty Years of Idemitsu, Tokyo: Idemitsu Kosan K.K., 1970.

The History of Nippon Sekiyu, Tokyo: Nippon Sekiyu K.K., 1990.

Japan Country Analysis Brief, Energy Information Administration, U.S. Department of Energy, April 2001,

Kimoto, Seiji, Story of Idemitsu Sazou, Tokyo: Nikkan Shobo, 1982.

Okabe, Akira, History of Industries in the Showa Era (Vol. III), Tokyo: Nippon Hyoron Sha, 1986.

A Short History of Idemitsu, Tokyo: Idemitsu Kosan K.K., 1960.

Takakura Shuji, A Biography of Idemitsu Sazou, Tokyo: President Publishing Co., 1990.

Terminal Condition: Japans Troubled Oil Firms, Economist, October 26, 1996.

Kenichi Yasumuro

update: Shawna Brynildssen