
Map of Brunei showing Belait district
'Belait' is the largest
district (Malay: ''
daerah'') in
Brunei, as well as the western-most. The word 'Belait' is taken from the name of the native inhabitants of Belait, the
Belait People. The district is administered from the town of
Kuala Belait, its capital. Belait is governed by an appointed District Officer. The current District Officer of Belait is Awg. Haji Adnan bin Haji Hanafiah. Other major towns and villages (''
kampong'') include
Badas,
Bukit Sawat,
Kuala Balai,
Lumut,
Seria,
Sungai Liang,
Sukang,
Telingan,
Kerangan Nyatan and
Melilas.
Location and Geography
The district borders the
South China Sea to the north, the Bruneian district of
Tutong to the east and the
Malaysian state of Sarawak to the south and west.
The district covers 2,727 sq. km/1,052mi², which is about half of the entire nation. The landscape of the district varies from the peat swamps and lowland forests near the coast to the montane rainforesst in the interior parts of the district.
The
Belait River (Sungai Belait) flows through Belait and it is the longest river in
Brunei. The Belait River, together with its tributaries drains the district - the Belait district roughly corresponds to the watershed of the Belait River.

Mukims of Belait district
The district is further subdivided into 8
Mukims (English: ''sub-districts''). These are often named after the most important town or village contained within. These are:
★
Bukit Sawat
★
Kuala Balai
★
Kuala Belait
★
Labi
★
Liang
★
Melilas
★
Seria
★
Sukang
Each
Mukim is composed of a number of villages or kampongs.
Population
The district has a population of around 70,000 people (2006 census) most of whom live in
Kuala Belait, the main town and
Seria. The native inhabitants of the district are the
Belait People and together with the other
Bumiputera races form a majority in the district. A large minority of this population is ethnic
Chinese, particularly those speaking
Cantonese,
Toisan and
Hakka.
Ibans,
Penans and other indigineous people make up the rest of the population. Also present are a large community of
expatriates (
Caucasians,
Indians,
Filipinos) mostly working with or associated with the oil and gas industry.
Although it is the second most populous district, it has the lowest average population density (23 persons per square kilometer) of all four districts due to its large area. The population distribution is uneven, the areas around the coast are more densely settled than the mountaineous interior rainforests. The largest urban areas in terms of population are the district administrative capital of Kuala Belait and the oil town of Seria.
Transportation
Road
The district is connected by the Seria/Lumut bypass to the Muara-Tutong highway to the east and by the Rasau Bridge to Sungai Tujoh and
Miri in the west. Roads near the coast, particularly in the urban areas of Kuala Belait, Seria and Sungai Liang are mostly surfaced and in good condition. Roads towards the interior - Labi, Melilas and Sukang - are partially surfaced, but may suffer from floods and landslides during the rainy season.
Rail
The Japanese built a wooden set of rail lines from Badas to the coast during the
Second World War. This is no longer in use and has fallen into disrepair.
Ports and Ferries
The port of Kuala Belait is one of the three ports in Brunei. It is located on the Belait river and caters to small crafts. (See
Kuala Belait.)
A ferry service crosses the mouth of the Belait River linking Kuala Belait to Kg. Sg. Teraban. (This services has been ceased since 2005).
Air
There is one airfield at Anduki, a
suburb of Seria. This is used mainly by
Shell to transport company personnel to the offshore rigs and platforms. (See
Seria.)
The interior villages of Sukang are visited by a regular flying medical service.
There are no commercial flights into and out of the district.
Oil and Gas
The Belait District, and Seria town in particular, is the heart of the oil and gas industry in Brunei. It has a large
expatriate community, including many
Dutch people. This is due to the fact that
Royal Dutch Shell has a major presence in the region.
There are two onshore oil and gas fields in the district - the large
Seria Oil Field discovered in 1929 which is still producing hydrocarbons even today, and the smaller
Rasau Field close to the town of Kuala Belait. The Tali Field, which is an extension of the Seria Field is found in the coastal waters off Seria. Further offshore lies the
South-West Ampa,
Fairley,
Fairley Baram and
Egret fields.
The
petroleum produced are processed onshore in and around Seria and the majority of it is exported. Some of the oil is refined at the
refinery in Seria for local consumption.
Natural Gas from the fields are sent to the Brunei Liquefied Natural Gas Plant (
BLNG) in Lumut where it is cooled and liquefied. This is exported via tankers to mainly
Japan and
Korea.