Group 1 - The oil sector in Hong Kong showed overall strength on February 16, with major stocks like CNOOC (00883.HK), CNOOC Services (02883.HK), and PetroChina (00857.HK) recording varying degrees of increase [1] - Geopolitical tensions in the Middle East, particularly the U.S. President Trump's support for Israel against Iran, have become significant catalysts for the oil and gas sector [1] - According to a report from Everbright Securities, the long-term supply-demand dynamics for crude oil remain favorable, maintaining a positive outlook on the "Big Three" oil companies and the oil service sector [1] Group 2 - CNOOC Services has recently submitted multiple patent applications to the National Intellectual Property Administration, focusing on core technologies in oil and gas development, which strengthens its technical reserves in the oilfield service sector [2]