中東およびアフリカの海洋エネルギートップ企業
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Abu Dhabi National Oil Company
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Saudi Aramco
-
Chevron Corporation,
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Nigerian National Petroleum Company Limited
-
General Electric
*免責事項:上位企業は順不同
Abu Dhabi National Oil Company
Saudi Aramco
Chevron Corporation,
Nigerian National Petroleum Company Limited
General Electric
*免責事項:上位企業は順不同