Libyas per capita income is among the highest in Africa. Oil revenues remain Libyas main source of income. At the beginning of the 21st century, oil and natural gas together accounted for almost three-fourths of the national income and nearly all of the countrys export earnings, although they employed less than one-tenth of the labour force. Under Muammar al-Qaddafi (19692011), the government exerted strong control over the economy; the petroleum industry was nationalized in the 1970s, and state trade unions and industrial organizations ran most other industries and utilities. To reduce the countrys heavy dependence on oil, economic policy has emphasized agricultural and industrial developments. Declining oil revenues during the 1980s, however, led to frequent revisions and delays in planned developments. Domestic reforms designed to liberalize economic policy and encourage private enterprise, begun in the late 1980s, continued into the 21st century.
Agriculture is limited by the environment and by shortages of labour. Only about 1 percent of the total land area is cultivated, mostly on the Al-Jifrah and Barce plains, and about one-tenth of that is irrigated. An additional almost one-tenth of the land is in pasture. Agricultural development by land reclamation and irrigation is a government priority. The largest projects are at the Al-Kufrah oasis, Twurgh, and Sarr, on the Al-Jifrah Plain, and in the Akhar Mountains. The Great Man-Made River project, begun at the end of the 20th century, is the most ambitious undertaking. Pipelines will carry water from wells in the southern Sahara to Tripoli, Sirte, Benghazi, Tobruk, and the Al-Kufrah oasis.
Cereals are the major crops throughout the country. Wheat (grown primarily on the eastern and western plateaus) is the largest cereal crop, although barley, which adapts well to different climates and soils, is also a chief cereal and remains a dietary staple. In addition, sorghum is raised in the Fezzan. Olive plantations were introduced by the Italians on the Al-Jifrah Plain and on the Nafsah Plateau, and there are smaller olive groves in the east. Orchards of almonds, citrus fruit, apricots, and figs grow on small and large farms and on small crowded plots in the oases. Dates are the principal crop of the southern oases. Grapes, broad beans, and peanuts (groundnuts) also are grown. Tobacco is raised in Tripolitania.
Animal husbandry is important in Cyrenaica, where the herds are raised on communal grazing lands. Livestock includes sheep, goats, cattle, camels, horses, mules, and donkeys. Animals are raised for their milk, meat, and hides or for their services as a means of transportation. Cattle often serve as draft animals. A small amount of milk is produced commercially, and commercial poultry farms are developing around the larger cities.
Less than 1 percent of the land is covered by forest. Prior to the 1950s, Libyas sole wooded area lay in the Akhar Mountains. Since then, the government has launched a massive forestation program. Between 1957 and 1964, for example, 27 million acacia, eucalyptus, cypress, cedar, and pine trees were planted in Tripolitania.
There is little demand in Libya for fish, and most fishing is done off the Tripolitanian coast by Libyan, Tunisian, Greek, and Maltese fishermen. The catch includes tuna, sardines, and red mullet. Sponge beds are also important. The sponges are harvested mainly by Greeks licensed by the Libyan government.
Petroleum was first discovered in Libya in 1956 near the Algerian border and is Libyas most important mineral resource. Subsequent finds have been mainly concentrated in onshore reserves located in the Sirte Basin. The major oil fields there include the Bahi, Dahra, and Sam fields, in the west of the basin; the Daf-Wah (Defa-Waha) and Nasser fields, in the north-centre; and the ml, Intir, and Sarr fields, located toward the east. Additional deposits have been located elsewhere in the country, including near Ghadames on the western border, Murzuq in the southwest, and the Al-Kufrah oasis in the southeast. Exploration for new deposits has concentrated on Tripolitania and offshore, where a large field was discovered northwest of Tripoli in 1988. Libyas proven oil reserves represent a large part of Africas total reserves and about 3 percent of the worlds total reserves. Libyan crude oil is low in sulfur content and therefore causes less corrosion and less pollution than most crude oils, which has made it popular in countries that have imposed stringent emissions standards. The deposits are associated with natural gas.
The first pipeline was constructed from the Zelten (later Nasser) field to Marsa el Brega in 1961. Since then, additional lines have been built from Dahra to Es Sider and to Ras Lanuf; other pipelines connect the Tobruk field to Marsa el Hariga and the Intir field to Zueitina. Refineries are located at Zawiyah, Misurata, Ras Lanuf, and Tobruk. A natural gas pipeline runs parallel to the oil pipeline from Nasser. The gas liquefaction plant at Marsa el Brega is one of the worlds largest.
Sales of Libyan oil to Europe were enhanced by the closure of the Suez Canal between 1967 and 1975. During the 1980s, however, production and revenues declined because of an increased supply of oil on the world market. The oil industry experienced a resurgence in the first decade of the 21st century as Qaddafi began to take steps to liberalize the Libyan economy and reduce the countrys international isolation. After the uprising that removed Qaddafi from power in 2011, however, political instability and factional fighting caused wide fluctuations in oil production.
Other mineral resources are limited. There are important deposits of natron (hydrated sodium carbonate) in the Fezzan and potash in Al-amryah Desert near Mardah. Iron ore deposits at Shi, although low in iron content, supply the iron-steel complex at Misurata. Marine salt is produced in Tripolitania, where there are also small deposits of gypsum, manganese, and lignite coal. Sulfur has been found in Al-amryah Desert, and there are scattered deposits of chalk, limestone, and marble that are quarried for the growing construction trade.
The production of electricity for public consumption is a government monopoly. There are also private plants, such as the 25,000-kilowatt facility built by an oil company at Marsa el Brega. The total installed capacity, all thermal plants powered by oil, grew more than sevenfold during the 1970s. In the early 21st century, efforts were underway to convert Libyas thermal plants from oil to natural gas in order to maximize petroleum available for export.
Industrial development is limited, although it expanded during the United Nations (UN) embargo of the country in the 1990s. Most factories are located in Tripoli and Benghazi and are managed by Arabs. The industrial workforce is small, with many factories employing fewer than 100 people. A majority of the factories manufacture processed food, cement, and textiles. There are also oil-related industries, which produce steel drums, tanks, and pipe fittings; petrochemical plants are located near refineries.
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