Bayu Undan is a producing conventional gas field located in shallow water in Timor-Leste and is operated by Santos. According to GlobalData, who tracks more than 34,000 active and developing oil and gas fields worldwide, the field is located in block TL-SO-T 19-13 and TL-SO-T 19-12, with water depth of 359 feet. Buy the profile here.

Field participation details

The field is owned by Chubu Electric Power, Eni, Inpex, Santos, SK, Tokyo Electric Power Co Holdings and Tokyo Gas.

Production from Bayu Undan

The Bayu Undan conventional gas field recovered 96.26% of its total recoverable reserves, with peak production in 2008. The peak production was approximately 64.99 thousand bpd of crude oil and condensate, 37.47 thousand bpd of natural gas liquids and 500 Mmcfd of liquid natural gas. Based on economic assumptions, production will continue until the field reaches its economic limit in 2025. The field currently accounts for approximately 100% of the country’s daily output.

Remaining recoverable reserves

The field is expected to recover 34.17 Mmboe, comprised of 2.02 Mmbbl of crude oil & condensate, 181.62 bcf of liquid natural gas reserves and 1.88 Mmbbl of natural gas liquid reserves. Bayu Undan conventional gas field reserves accounts 0.01% of total remaining reserves of producing conventional gas fields globally.

About Santos

Santos Ltd (Santos) is an oil and natural gas company. Its activities include onshore, offshore, and liquefied natural gas (LNG) projects. The company has exploration and production acreage in Australia. Its operations are concentrated on core asset hubs such as Cooper Basin, Queensland and New South Wales, Papua New Guinea, Northern Australia and Timor-Leste, and Western Australia. Santos owns the related infrastructure and carries out the transportation and marketing of hydrocarbons. Its products include natural gas, ethane, condensate, methane, coal seam gas, liquefied natural gas (LNG) and crude oil. The company supplies its products to homes, businesses, and major industries across Australia and Asia. Santos is headquartered in Adelaide, South Australia, Australia.

For more details on the Bayu Undan Conventional Gas 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.