On May 21, CNOOC fell 3.38% in regular trading, trading at HKD 26.9/share, with trading volume of HKD 230 million. The oil and gas sector came under broad pressure, with United Energy Group down 1.01% and CHK Oil down 5.10%.

On the news front, major OPEC+ member states plan to continue raising crude oil production quotas in coming months, aiming to restore part of shut-in capacity by the end of September. Meanwhile, the UAE formally exited OPEC and OPEC+ on May 1, removing quota constraints on its nearly 1 million bpd of spare capacity, significantly weakening OPEC+ market control and raising medium-to-long-term oversupply expectations.

Brent crude had previously surged above $110 driven by US-Iran tensions and Hormuz Strait shipping disruptions, but prices have recently shown signs of retreating from highs. As a pure upstream producer with a breakeven cost below $28/barrel, every $1 movement in oil prices directly impacts CNOOC's profit margin. The fading geopolitical premium combined with rising production expectations is pressuring the stock in the near term.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)