West Seno is a producing conventional gas field located in deepwater in Indonesia and is operated by Chevron Makassar. The field is located in block Makassar Strait, with water depth of 3,370 feet.

Field participation details

The field is owned by China Petrochemical, PT Pertamina (Persero) and Chevron.

Production from West Seno

The West Seno conventional gas field recovered 99.55% of its total recoverable reserves, with peak production in 2007. The peak production was approximately 24.52 thousand bpd of crude oil and condensate and 276 Mmcfd of natural gas. Based on economic assumptions, production will continue until the field reaches its economic limit in 2025.

Remaining recoverable reserves

The field is expected to recover 0.66 Mmboe, comprised of 0.57 Mmbbl of crude oil & condensate and 0.51 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.