An oil worker at Qinghai Oilfield Co in northwest China's Qinghai Province. Crude oil prices approached three-week lows amid worries of the possible failure of efforts to reduce global output. Photo: Xinhua

Hong Kong and mainland indexes drop, fuelled by oil and coal sell-off

Hang Seng ends 0.83pc lower at 23,132,35. CNOOC down 2.67pc, PetroChina falls 1.99pc, China Petroleum & Chemical Corporation slips 1.39pc

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An oil worker at Qinghai Oilfield Co in northwest China's Qinghai Province. Crude oil prices approached three-week lows amid worries of the possible failure of efforts to reduce global output. Photo: Xinhua
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