Dai Hung (Great (Big) Bear) is a producing conventional oil field located in shallow water in Vietnam and is operated by PetroVietnam Exploration Production. The field is located in block Block 05-1a, with water depth of 361 feet.

Field participation details

The field is owned by Vietnam National Oil and Gas Group.

Production from Dai Hung (Great (Big) Bear)

The Dai Hung (Great (Big) Bear) conventional oil field recovered 69.24% of its total recoverable reserves, with peak production in 2017. The peak production was approximately 13.19 thousand bpd of crude oil and condensate. Based on economic assumptions, production will continue until the field reaches its economic limit in 2034. The field currently accounts for approximately 3% of the country’s daily output.

Remaining recoverable reserves

The field is expected to recover 28.94 Mmboe, comprised of 28.94 Mmbbl of crude oil & condensate. Dai Hung (Great (Big) Bear) conventional oil field reserves accounts 0.01% of total remaining reserves of producing conventional oil fields globally.

About PetroVietnam Exploration Production

PetroVietnam Exploration Production Corp (PVEP) is an upstream subsidiary of Vietnam National Oil and Gas Group. The company operates and develops petroleum projects in Vietnam and other countries. PVEP has an interest in oil fields in major sedimentary basins of Vietnam, including Song Hong, Phu Khanh, Cuu Long, Nam Con Son and Malay Tho Chu. The company’s major assets include Dai Hung field, Block 05-1(a), Song Doc field, and Block 46-02, and jointly operate others. Internationally, it has exploration and production projects in Asia, the Middle East, Africa, Caribbean, and South America. The company participates in all petroleum projects in Vietnam on behalf of its parent. PVEP is headquartered in Hanoi, Vietnam.


Information on the field is sourced from GlobalData’s fields database that provides detailed information on all producing, announced and planned oil and gas fields globally. Not all companies mentioned in the article may be currently existing due to their merger or acquisition or business closure.