
MOSCOW, Jan 31 (Reuters) - Oil output at the huge Tengiz oilfield has been restored, Kazakhstan's energy ministry said on Saturday.
The ministry said five wells were relaunched at the oilfield, adding that the oil output would be increased gradually.
Tengiz is operated by Tengizchevroil, a joint venture between Chevron CVX.N, Exxon Mobil XOM.N, KazMunayGas KMGZ.KZ and Lukoil LKOH.MM. Chevron owns 50%, Exxon Mobil 25%, Kazakhstan's KazMunayGas 20% and Russia's Lukoil 5%.