Zhong Guo Zi Ran Zi Yuan Bao·2026-01-08 06:17Core Insights - The "Deep Sea No. 1" Phase II has been fully put into production, increasing the overall daily production capacity of the gas field to over 1,500 cubic meters [2] - China National Offshore Oil Corporation (CNOOC) announced that the cumulative production of oil and gas equivalent from the offshore gas field group around Hainan Island will exceed 10 million tons by 2025, marking a historic high and doubling the output compared to the end of the 13th Five-Year Plan [2] - The development of marine oil and gas resources in Hainan dates back to the 1950s and 1960s, with significant advancements made since the establishment of the first cooperative gas field, Yacheng 13-1, in the late 20th century [2] Industry Developments - Since the 14th Five-Year Plan, CNOOC has conducted in-depth analysis of the resource endowment in three major oil and gas structures in the Hainan sea area: Yinggehai Basin, Qiongdongnan Basin, and Zhujiangkou Basin [2] - The company has increased efforts in oil and gas exploration and development, accelerating the construction of marine energy infrastructure [2] - CNOOC has established the largest offshore natural gas production cluster in China, consisting of 19 offshore platforms, 3 land terminals, and several underwater production facilities, addressing complex conditions such as deep water, high temperature, high pressure, and low permeability [2]