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Chevron and partners in the Tengiz oil field in Kazakhstan will help to increase crude oil production in the field by about 260,000 barrels per day with the development of its Future Growth and Wellhead Pressure Management Project. This expansion is estimated to cost $36.8 billion but will increase the field’s total daily production to about 1 million barrels. Multiple companies own portions of this oil field: Tengizchevroil is 50% owned by Chevron and owns and operates the Tengiz field. However, another 25% is owned by Exxon Mobil Corp, 20% by Kazakhstan’s state-owned energy company, KazMunayGas, and the final 5% is owned by a subsidiary of Russia’s Lukoil.