Benchamas is a producing conventional oil field located in shallow water in Thailand and is operated by Chevron Offshore (Thailand). The field is located in block B8/32 (Tantawan), with water depth of 243 feet.

Field participation details

The field is owned by KrisEnergy , Palang Sophon , Mitsui, PTT Public and Chevron.

Production from Benchamas

The Benchamas conventional oil field recovered 98.74% of its total recoverable reserves, with peak production in 2003. The peak production was approximately 49.42 thousand bpd of crude oil and condensate and 167 Mmcfd of natural gas. Based on economic assumptions, production will continue until the field reaches its economic limit in 2025. The field currently accounts for approximately 1% of the country’s daily output.

Remaining recoverable reserves

The field is expected to recover 4.37 Mmboe, comprised of 1.28 Mmbbl of crude oil & condensate and 18.58 bcf of natural gas reserves.


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.