{{tag>fields basics}} ====== Tengiz ====== Additionally, Kazakhstan’s biggest oilfield, Tengiz, has reduced oil production by 28% to just 30%.((https://archive.ph/8DDKJ#selection-8052.0-8052.1)) ((2024)) The oilfield is operated by US energy company Chevron.((https://archive.ph/8DDKJ#selection-8060.0-8060.1)) ((2024))