Tamsag-21 is a producing conventional oil field located onshore Mongolia and is operated by PetroChina Daqing Tamsaq. According to GlobalData, who tracks more than 34,000 active and developing oil and gas fields worldwide, the field is located in block Block XXI. Buy the profile here.

Field participation details

The field is owned by China National Petroleum.

Production from Tamsag-21

The Tamsag-21 conventional oil field recovered 82.59% of its total recoverable reserves, with peak production in 2016. The peak production was approximately 12.05 thousand bpd of crude oil and condensate. Based on economic assumptions, production will continue until the field reaches its economic limit in 2031. The field currently accounts for approximately 47% of the country’s daily output.

Remaining recoverable reserves

The field is expected to recover 5.50 Mmboe, comprised of 5.50 Mmbbl of crude oil & condensate.

For more details on the Tamsag-21 Conventional Oil Field, buy the profile here.


GlobalData, the leading provider of industry intelligence, provided the underlying research used to produce this article.

This information is drawn from GlobalData’s Oil & Gas Intelligence Center, which provides detailed profiles of 34,000+ oil and gas fields, 400,000+ exploration blocks, 1,100+ LNG terminals, 3,400+ gas processing plants, 5,000+ storage terminals, and 8,000+ pipelines, 1,400+ refineries and 13,000+ petrochemical plants worldwide.