HONG KONG, Aug. 26, 2025 /PRNewswire/ -- PetroChina Company Limited ["PetroChina" or the "Company", (HKSE: 00857; SSE: 601857)] announced that in the first half of the year, the Company proactively responded to changes in macroscopic environment, coordinated efforts to advance production and operations, technological innovation, marketing, and quality and efficiency improvement. Its oil and gas output maintained steady growth, transformation and upgrading of refining and chemical operations was further prop ...