港股石油股午后涨幅扩大，中石化涨2.9%

Group 1 - The core viewpoint of the article highlights the significant increase in Hong Kong oil stocks, with notable gains observed in major companies [1] Group 2 - Sinopec (00386.HK) saw an increase of 2.9%, reaching HKD 5.67 [1] - CNOOC (00883.HK) rose by 1.45%, trading at HKD 25.16 [1] - China Oilfield Services (02883.HK) experienced a gain of 1.36%, priced at HKD 9.7 [1] - PetroChina (00857.HK) increased by 1.17%, with a price of HKD 9.49 [1]