港股石油股午后走高，中国石油化工股份(00386.HK)、中国海洋石油(00883.HK)、中国石油股份(00857.HK)均涨超2%。

Group 1 - The core viewpoint of the article highlights that Hong Kong oil stocks experienced an afternoon rally, with significant gains observed in major companies [1] Group 2 - China Petroleum & Chemical Corporation (00386.HK) saw its stock price increase by over 2% [1] - CNOOC Limited (00883.HK) also reported a rise of more than 2% in its stock value [1] - China National Petroleum Corporation (00857.HK) experienced a similar increase, with its shares up by over 2% [1]