Block B Gas Development is a conventional gas development located in shallow water in Vietnam and is operated by Vietnam National Oil and Gas Group. Discovered in 1997, Block B Gas Development lies in block Block B & 48/95 and Block 52/97, with water depth of around 259 feet.

The project is currently in approval stage and is expected to start commercial production in 2024. The development cost is expected to be $6,800 m.

Field participation details

The field is owned by Mitsui, PTT Public, Japan Oil, Gas and Metals National and Vietnam National Oil and Gas Group.

Production from Block B Gas Development

Production from the Block B Gas Development conventional gas development project is expected to begin in 2024 and is forecast to peak in 2042, to approximately 1,640 bpd of crude oil and condensate and 490 Mmcfd of natural gas. Based on economic assumptions, the production will continue until the field reaches its economic limit in 2050.

Remaining recoverable reserves

The field is expected to recover 632.98 Mmboe, comprised of 13.03 Mmbbl of crude oil & condensate and 3,719.67 bcf of natural gas reserves.

Contractors involved in the Block B Gas Development conventional gas field

Some of the key contractors involved in the Block B Gas Development project as follows.

Design/FEED Engineering: DeepBlue and EDG

EPC Contractors: Vietnam National Oil and Gas Group

Other Contractors: Lung Lo Construction

About Vietnam National Oil and Gas Group

Vietnam National Oil and Gas Group (Petrovietnam) is an integrated energy company. It carries out exploration and production, refining, storage and transportation of petroleum products. The company also produces petrochemicals and has presence in power generation. It has upstream oil projects in CIS countries, the Middle East, Latin America, Africa, and Southeast Asia. Petrovietnam processes crude oil, natural gas and associated gas into finished products of gasoline, fuels, chemicals, fertilizer, plastics and textiles. The company also provides a range of services covering petroleum technical, finance, transportation,insurance, operation consultancy, scientific research and training. It manages all the production sharing (PSC) contracts with its partners, on behalf of the Government. Petrovietnam 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.