drilled in 1979, discovering "significant oil flow" from the middle Carboniferous carbonates overlain by Lower Permian clays and the massive Permian salt. Stratigraphy starts with the Upper Devonian Famennian Stage consisting of homogeneous biogenic limestone and some thin dolomite interbedding, followed by Lower Carboniferous deposits consisting of Tournaisian, Visean and Namurian Stage limestones. Next comes the Middle Carboniferous Bashkirian Stage limestones, and then the Lower Permian Artinksian Stage argillaceous sediments. The carbonate buildup is up to 4 km thick and form an angular unconformity to the overlying Permian sediments. In pop culture The Tengiz oil field was mentioned in the film Syriana (2005) starring George Clooney. See also Kashagan Field Kazakhstan-China oil pipeline Oil and gas basins of Kazakhstan Trans-Caspian Oil Pipeline References External links Kazakhstan Field's Riches Come With a Price - The St. Petersburg Times October 23rd 2001 Stratigraphy, facies, and reservoir distribution, Tengiz Field, Kazakhstan - (2003) L. James Weber, Brent P. Francis, P.M. (Mitch) Harris, and Michael Clark. In: SEPM Special Publication 78: Permo-Carboniferous Carbonate Platforms and Reefs, Edited By: Wayne M. Ahr, Paul M. (Mitch) Harris, William A. Morgan, and Ian D. Somerville. Sulfur Pads in Google Earth Oil fields of Kazakhstan Natural gas fields in Kazakhstan Chevron Corporation oil and gas fields ExxonMobil oil and gas fields Lukoil oil and gas fields Atyrau Region