Bintulu Division is one of the twelve administrative divisions of Sarawak, Malaysia. It has a total area of 12,166.2 square kilometres, and is the third largest division after Kapit Division and Miri Division. Bintulu Division consists of two districts which is Bintulu and Tatau, together with a sub-district under Bintulu, which is Sebauh. Three major towns in Bintulu are Bintulu (which is the capital of both Bintulu District and Bintulu Division), Tatau and Sebauh. Demography The population of Bintulu Division (year 2000 census) was 179,600. This makes Bintulu as one of the most loosely populated division in Sarawak with only 14 people per kilometre. Despite being the most thinly populated, Bintulu Division has the fourth biggest town in Sarawak, which is Bintulu town. Most of the Bintulu division's population is concentrated in this town. Ethnic makeup Bintulu is traditionally a home to Iban, Chinese, Melanau, Malay, Orang Ulu and Kedayan people. Most Ibans are scattered throughout rural areas of Bintulu, namely in Tatau and Sebauh. Whilst, Melanau people (or Melanau Bintulu/Vaie people) are concentrated at the town areas in Bintulu and rural communal areas, namely at Bintulu town, Tatau town, Kuala Tatau, Sebauh, Pandan and Labang. Many Malay people are not originally from Bintulu, however, intermarriage with locals especially Melanau people has made Malay as one of the major ethnics in Bintulu. Chinese people are more concentrated at town areas, such as at Bintulu, Sebauh and Tatau town, while some resides at Sangan and Kuala Tatau. Orang Ulu people, such as Kenyah, Kayan, Tatau, Penan and Punan are more scattered throughout Bintulu division compared to Iban people. Most of them still live deep in the rural areas like Kakus and Jelalong. Kedayan people, although small in number, can be spotted at Nyalau areas (100 km from Bintulu) just at the border with Miri Division. There is a large influx of foreign worker population due to the strength of the petroleum industry. It was estimated more than 20% of Bintulu population are foreign workers and expatriates. Administration Members of Parliament Economy The economy is largely based on the petroleum and natural gas industries. Bintulu has an estimated 85% of Sarawak’s known natural gas reserves, or some . In addition to export as liquified natural gas, on-shore facilities produce fertiliser, and formaldehyde resins. Bintulu also has about half of Sarawak's crude oil reserves of , with production wells located some 40 kilometers