The well in the Sakhalin shelf, is located 49 km offshore Sakhalin.

According to the report, “The well was drilled on the Pela Leich structure that is located to the north of all other oil-bearing blocks.”

“At present the well rig completed its operation fulfilling tasks of the season 2004 [and] the well rig will be tested and additional information on reserves of hydrocarbons will be collected later,” it added.

Sakhalin-5 has estimated reserves of 600 million tonnes of oil and 600 billion cubic metres of gas.