Coastal oilfield is administratively located in the Zhylyoi area of Atyrau region, with Rum, Karaarnai, Tazhigali, Tengiz, and Karolev oilfields around. This region has well-developed oil and gas infrastructure. Atyrau city, the capital of Kazakhstan's Atyrau Region and the country's third-largest city, is not only the most important port along the Caspian Sea but also has an international airport. The Atyrau-Samara oil pipeline has been completed, ensuring mature logistics and transportation conditions.

Structurally, coastal oilfield is located in the southern uplift zone of the Pre-Caspian Basin, within the Kraton-Tengiz uplift belt, targeting primarily the Cretaceous, Jurassic, and Triassic formations. Exploration has been limited to the Upper Cretaceous Senomanian. In 2020, ZPEC acquired the exploration license for 18.5 square kilometer, which was expanded to 90.54 square kilometers in 2022.

In 2025, Well S1 in the South Fault Block produced high-yield commercial oil flow from multi-zone testing, achieving a major breakthrough in mid-deep exploration in the South Fault Block. The drilling of appraisal wells yielded remarkable results, significantly improving the level of reserve substantiation. The depth range of the central area under the old Coastal Concession was expanded, laying the foundation for further exploration of mid-deep and even subsalt formations in the next phase.

Focusing on mid-deep exploration in the North Fault Block, reservoir appraisal in the South Fault Block, and trial production in the North Fault Block, the Project will target C1+C2 reserves of 70 million tons in the South Fault Block, thereby laying the groundwork for the preparation of an overall development plan for the Oilfield.

Regional Geographic Map of the Coastal Oil Field

Exploration Well Location Map of Coastal Oil Field

Reserves Identification Conclusions Issued by Kazakhstan National Mineral Reserves Committee