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November 30, 2021updated 27 Apr 2022 12:40pm

Kumsay Heavy Oil Field, Kazakhstan

By Carmen

Kumsay is a producing heavy oil field located onshore Kazakhstan and is operated by KMK Munay. The field is located in block Kumsay (Sub-Salt).

Field participation details

The field is owned by China National Petroleum and Yukon Energy Holding.

Production from Kumsay

The Kumsay heavy oil field recovered 31.77% of its total recoverable reserves, with peak production expected in 2022. The peak production was approximately 8.46 thousand bpd of crude oil and condensate. Based on economic assumptions, production will continue until the field reaches its economic limit in 2066.

Remaining recoverable reserves

The field is expected to recover 42.81 Mmboe, comprised of 42.81 Mmbbl of crude oil & condensate. Kumsay heavy oil field reserves accounts 0.10% of total remaining reserves of producing heavy oil fields globally.

About KMK Munay

KMK Munay (KMK), formerly Lancaster Petroleum is an oil and gas exploration and production company. The company’s activities include exploration and production of hydrocarbons at the Kokzhide, Kumsai and Mortuk deposits located in the Aktobe region. It has subsoil use contracts for the oil fields Kokzhide, Kumsai, and Murtuk located in the Aktyubinsk region. KMK’s deposits are also located in the region such as Zhanazhol, Kenkiyak, Alibekmola, and various small and medium-sized fields. The company partners with other oil and gas companies for its exploration activities. KMK is headquartered in Aktobe, Kazakhstan.


Information on the field is sourced from GlobalData’s fields database that provides detailed information on all producing, announced and planned oil and gas fields globally. Not all companies mentioned in the article may be currently existing due to their merger or acquisition or business closure.

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