Russian energy major Rosneft has begun drilling an offshore exploration well in Vietnam, according to the company.

The expected recoverable reserves of natural gas are estimated at 12.6 billion cubic meters (bcm) with 0.6 million tons of gas condensate, says Rosneft.

The well is located in the Nam Con Son basin, and will drill to a depth at around 1380 meters in an area of sea 162 meters deep.

Rosneft plans to drill another exploration well in the same basin. According to the firm, incorporating the two wells into the same program will help reduce the time to do the work and most efficiently explore projects in the company’s Vietnamese assets.

Rosneft CEO Igor Sechin said the team chosen for the project had already shown their ability in Russia successfully drilling of the world’s northernmost well in the Kara Sea. That project resulted in the discovery of a new deposit, the Pobeda field.