International Business Times | Kazakhstan's Largest Oil Producer TengizChevroil's Expansion To Cost $30B International Business Times Kazakhstan Oil Kazakhstan's biggest oil producer Tengizchevroil (TCO) would need about $30 billion to complete a massive expansion project in Western Kazakhstan, a minister said Monday. Pictured: A worker walks past the new catalytic reforming unit ... Expanding oil production at Kazakhstan's Tengiz field estimated at $30 bln ... |