Brunei has the second-highest Human Development Index among the Southeast Asiannations, after Singapore.Crude oil and natural gas production account for about 90% of its GDP. About 167,000 barrels (26,600 m3) of oil are produced every day, making Brunei the fourth-largest producer of oil in Southeast Asia. It also produces approximately 25.3 million cubic metres (890 million cubic feet) of liquified natural gas per day, making Brunei the ninth-largest gas exporter in the world. Forbes also ranks Brunei as the fifth-richest nation out of 182, based on its petroleum and natural gas fields. Brunei was ranked 88th in the Global Innovation Index in 2024.
Substantial income from overseas investment supplements income from domestic production. Most of these investments are made by the Brunei Investment Agency, an arm of the Ministry of Finance. The government provides for all medical services, and subsidises rice and housing.
The national air carrier, Royal Brunei Airlines, is trying to develop Brunei as a hub for international travel between Europe and Australia/New Zealand. Central to this strategy is the position that the airline maintains at London Heathrow Airport. It holds a daily slot at the highly capacity-controlled airport, which it serves from Bandar Seri Begawan via Dubai. The airline also has services to major Asian destinations including Hong Kong, Bangkok, Singapore and Manila.
Brunei depends heavily on imports such as agricultural products (e.g. rice, food products, livestock, etc.), vehicles and electrical products from other countries. Brunei imports 60% of its food; of that amount, around 75% come from other ASEAN countries.
Brunei's leaders are concerned that increasing integration in the world economy will undermine internal social cohesion and have therefore pursued an isolationist policy. However, it has become a more prominent player by serving as chairman for the 2000 Asia-Pacific Economic Cooperation (APEC) forum. Brunei's leaders plan to upgrade the labour force, reduce unemployment, which was at 6.9% in 2014;strengthen the banking and tourism sectors, and, in general, broaden the economic base. A long-term development plan aims to diversify growth.
The government of Brunei has also promoted food self-sufficiency, especially in rice. Brunei renamed its Brunei Darussalam Rice 1 as Laila Rice during the launch of the "Padi Planting Towards Achieving Self-Sufficiency of Rice Production in Brunei Darussalam" ceremony at the Wasan padi fields in April 2009. In August 2009, the Royal Family reaped the first few Laila padi stalks, after years of attempts to boost local rice production, a goal first articulated about half a century ago. In July 2009 Brunei launched its national halal branding scheme, Brunei Halal, with a goal to export to foreign markets.
In 2020, Brunei's electricity production was largely based on fossil fuels; renewable energy accounted for less than 1% of produced electricity in the country.