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Survey of Energy Resources 2007

Crude Oil and Natural Gas Liquids Country Notes

Brunei

Proved recoverable reserves (crude oil and NGLs, million tonnes)

150

Production (crude oil and NGLs, million tonnes, 2005)

10.1

R/P ratio (years)

14.9

Year of first commercial production

1929


Although the earliest discoveries (Seria and Rasau fields) were made on land, virtually all subsequent oil fields have been found in offshore waters. Proved recoverable reserves reflect the level of 1 120 million barrels quoted in the OPEC Annual Statistical Bulletin 2005. There is now consensus among the main published sources that total oil reserves are of this order, Oil & Gas Journal having reduced its evaluation to 1 100 million (as at end-2006) from the 1 350 million at which it had stood since 1990.

There were nine offshore fields in production in 2005, together with two onshore fields: total output (including 14 000 b/d of natural gasoline) was 206 000 b/d, in line with the average for the previous five years. More than 90% of Brunei's oil output is exported, mostly to Japan, Thailand, South Korea and Singapore.