ZIYANG, China, May 13, 2026 /PRNewswire/ — China Petroleum & Chemical Corporation ("Sinopec", HKG: 0386) has announced a major shale gas exploration breakthrough of its "Project Deep Earth – Sichuan and Chongqing Natural Gas Base". The Ziyang Dongfeng shale gas field, operated by Sinopec, has secured official approval for proven geological reserves of 235.687 billion cubic meters from the Ministry of Natural Resources of China. This marks the birth of China's first ultra-deep, 100-billion-cubic-meter-level shale gas field, pushing exploration and development beyond 4,500 meters. Continue Reading Sinopec’s Ziyang Dongfeng Shale Gas Field Reports Proven Reserve of 235.687 Billion Cubic Meters. The…