The Wensu Block, located in Wensu County and Aksu City within the Aksu Prefecture of the Xinjiang Uygur Autonomous Region, is structurally situated in the Wensu uplift area in the northwest part of Tarim Basin, covering an area of 1,086.26 square kilometers. Oil and gas exploration in this area began in 1965, and for over 50 years, no significant breakthrough was achieved. In 2017, two exploratory wells, XWD1 and XWD2, deployed by the Oil and Gas Resource Survey Center of the China Geological Survey under the Ministry of Natural Resources, achieved high-yield industrial oil flow in the Wensu uplift for the first time, marking a significant breakthrough in the exploration of new regions and strata for oil and gas. In response to the national requirements on oil and gas reform pilot, in January 2018, Zhongman Petroleum and Natural Gas Group Corp., Ltd. (ZPEC) acquired the prospecting rights for this block through a bid of RMB 866.7 million.

As of April 2026, four oilfields have been discovered in the Wensu area, with 492 oil production wells and 32 water injection wells. In 2025, the annual wellhead oil output was nearly 700,000 tons, and new production capacity was 100,000 tons.

Wenbei Central Processing Facility Phase I commenced trial operation in October 2023, and Phase II started production with oil introduction at the end of 2024. The facility has an annual crude oil processing capacity of 500,000 tons and a daily natural gas processing capacity of 150,000 cubic meters.

The exploration license area of Wensu Block is 1,042.967 km². In 2020, proved geological oil reserves of 30.11 million tons were established through production testing. From 2022 to 2023, we discovered an expansion of the hydrocarbon-bearing area of the Kekeya Oilfield, and successively identified new hydrocarbon-bearing strata, including the Sinian and Nanhua systems. In 2024, progressive exploration and appraisal continued around the hanging wall and footwall of the F1 fault. In 2025, reserve declarations for the Kekeya, Hongqipo, and Saike oilfields were successfully completed. The Wensu project recorded newly added proved geological oil reserves of 12.3244 million tons, dissolved gas reserves of 490 million cubic meters, and natural gas reserves of 825 million cubic meters.

         In 2026, Wensu Oilfield will focus on progressive exploration, meticulously working on exploration/appraisal targets, and continuously tapping into remaining exploration potential. With water injection as the central focus, new processes and technologies as the means, and efficient management as the driver,  Wensu oilfield will accelerate the improvement of injection-production well patterns, enhance waterflood development performance, increase the operating rate and on-stream efficiency of oil and water wells, control the rise in water cut and the rate of production decline, and strive to maintain stable production in the oilfield. At the same time, a number of engineering projects will be implemented, including construction of Akesu Zhongman Petroleum Production Base, Kekeya Oilfield surface facilities project, Kekeya Oilfield tubing plant project, and a photovoltaic project.