Kazakhstan is in talks with a group of foreign companies led by BG and Eni to buy a stake in their Kazakh gas condensate project Karachaganak, Prime Minister Karim Masimov said.
"Talks are going on between the Energy Ministry, (state energy firm) KazMunaiGas and all project participants on this issue," Masimov told reporters.
He declined to provide details.
Apart from BG and Eni, Karachaganak shareholders include Russia's LUKOIL and U.S. firm Chevon.
The field, located in Western Kazakhstan, holds 1.2 billion tonnes of oil and gas condensate and 1.35 trillion cubic metres of natural gas.
Karachaganak operators sued Kazakhstan this year to recover over $1 billion (624 million pounds) in export duties and other payments but suspended legal proceedings in October.