Tengiz is an oil and gas field in Atyrau oblast, Kazakhstan, located 350 kilometers to the south-east of Atyrau city. The field belongs to Peri-Caspian Oil and Gas province. Discovered in 1979.
Tengiz Oilfield pioneers are: Zholdaskali Dosmukhambetov, Bulekbay Sagingaliev, Bulat Yelamanov, Asabay Khismetov, Kumar Balzhanov, Valentin Avrov, Makhash Balgimbayev, Oryngazy Yeskaziyev, these people have been awarded with National Award of the Republic of Kazakhstan.
The oil and gas complex – Tengiz Oil and Gas Processing Plant, including the field was put into operation on April 6, 1991 that opened the way to commercial oil production at this field.
The Kazakhstan Government founded the Tengizchevroil (TCO) consortium together with Chevron in 1993 for development of Tengiz oil field. Today, there are four partners: JSC NK Kazmunaigas (20%), Chevron Overseas (50%), Exxon Mobil (25%) and LukArko (5%).
Tengiz ranks No. 2 by its oil reserves in Kazakhstan (after Kashagan field).
The recoverable oil reserves of the field are estimated as 750 million to 1.125 billion tonnes of oil. The forecasted volume of oil and gas initially in place is 3.133 billion tonnes of oil. Associated gas reserves are estimated as 1.8 trillion m³.
Central Production and Processing Complex is Kulsary village.
The Caspian Pipeline Consortium pipeline was opened to export oil from Tengiz to Novorossiysk in 2001 and that was the moment when the first Kazakhstani oil with the Tengiz brand appeared in the market. Starting from November, 2008 Kazakhstan began to export the Kazakh oil through the Baku-Tbilisi-Ceyhan oil pipeline, as well as resumed delivery of small oil volumes via the Baku-Batumi railway after August, 2008.