Bien Dong 1 Project involves the joint development of the Moc Tinh and Hai Thach gas fields situated in the Nam Con Son basin, offshore of southern Vietnam. The fields are located at a water depth of about 140m.

Moc Tinh gas field is located in block 05.3, while the Hai Thach gas and condensate field is located in blocks 05.2 and 05.3, about 340km south-east of Vung Tau.

The fields are being developed by Bien Dong Petroleum Operating Company (BDPOC), which holds a 51% interest in the development. The remaining 49% shares in the project are held by Gazprom.

The combined reserves of the two Vietnamese fields are estimated at 55.6 billion cubic metres of gas and 25.1 million tonnes of gas condensate. The fields are expected to start production in 2013.

Bien Dong 1 Project includes a central processing platform (PQP-HT) with a living platform capable of accommodating 70 people onboard, two wellhead platforms, namely Hai Thach 1 (HT1) and Moc Tinh 1 (MT1), three jackets (PQP-HT, WHP-MT1 and WHP-HT1) and a link bridge and FSO with a storage capacity of 350,000 barrels per day.