There are extensive deposits of copper ore. By products include smaller amounts of gold and silver. Oman has numerous oil fields. Oil is Oman's main source of revenue. Oman has natural gas reserves, which play an important role in the development of the economy.
Traditional industries comprise crafts such as silver working, shipbuilding and weaving.
Oman has large resources of industrial minerals, including silica sand and quartzite which could be used for a glass industry, gypsum for plasterboard, dolomite for magnesia, and kaolinite for ceramics and the paper industry. Telecommunications Direct dialling is available from South Africa on dial code 09968 followed by subscriber's number. Generally good and direct dialling facilities to other Gulf countries and many countries outside the Gulf Region are available. Telegraphic and telex service is available. Fax and mobile phones are also available.