Chinese oil giant China National Petroleum Corp, the country's largest oil and gas company, has been vigorously pursuing a transition in its operations by sharpening its focus on non-fuel retail business while boosting its overall revenue margins.

Chinese oil giant China National Petroleum Corp, the country's largest oil and gas company, has been vigorously pursuing a transition in its operations by sharpening its focus on non-fuel retail business while boosting its overall revenue margins.
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