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| 1990 The annual crude oil production from China offshore broke the record of one million tons, amounted 1,431,759 tons. |
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October 10 |
CNOOC moved its offices from the location of Sidaokou Road of Haidian District, Beijing into the location of Jingxin Building, Dong San Huan Bei Lu, Chaoyang District, Beijing. |
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January 1 |
China Offshore Oil Nanhuanghai Corporation was renamed as China Offshore Oil Donghai Corporation. |
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