As of May 25, Bayan Oilfield in North China Oilfield has achieved a cumulative crude oil production of nearly 700,000 tons this year, with a daily output reaching 4,800 tons—an increase of 20% year-on-year. This accounts for 30% of the total daily crude oil production of North China Oilfield, and the SEC reserve-to-production ratio remains stable and favorable, achieving simultaneous growth in both volume and efficiency.