Eastern Province, Saudi Arabia
The official language of Saudi Arabia is Arabic. The three main regional variants spoken by Saudis are Hejazi Arabic, Najdi Arabic, and Gulf Arabic. There are approximately 2 million Gulf Arabic speakers in Saudi Arabia, and the dialect is only spoken in the Eastern Province. The remaining Arabic speakers in the province speak one of the other two dialects, more commonly the Najdi dialect. Saudi Sign Language is the principal language of the deaf community. The large expatriate communities also speak their own languages, the most numerous of which are Indian languages, Filipino/Tagalog, Egyptian Arabic, Indonesian, Rohingya, and Urdu.Saudi Aramco, the state-owned oil producing company of Saudi Arabia, is based in Dhahran, which is located in the Eastern Province, and most decisions on oil policy and production that affect the global economy are made there. The kingdom's main oil and gas fields are mostly located in the Eastern Province, onshore and offshore. Notable among these are the Ghawar Field and the largest crude increment in the world. Petroleum from the fields is shipped to dozens of countries from the oil port of Ras Tanura and is also used as feedstock in numerous industrial plants in Jubail.
Semitic languages
With the advent of the early Muslim conquests of the seventh and eighth centuries, the hitherto largely uninfluential Arabic language slowly replaced many (but not all) of the indigenous Semitic languages and cultures of the Near East. Both the Near East and North Africa saw an influx of Muslim Arabs from the Arabian Peninsula, followed later by non-Semitic Muslim Iranian and Turkic peoples. The previously dominant Aramaic dialects gradually began to be sidelined, however descendant dialects of Eastern Aramaic (including the Akkadian influenced Assyrian Neo-Aramaic, Chaldean Neo-Aramaic, Turoyo and Mandaic) survive to this day among the Assyrians and Mandaeans of northern Iraq, northwestern Iran, northeastern Syria and southeastern Turkey, with up to a million fluent speakers. Western Aramaic is now only spoken by a few thousand Syriac Christians in western Syria. The Arabs spread their Central Semitic language to North Africa (Egypt, Libya, Tunisia, Algeria, Morocco and northern Sudan and Mauritania) where it gradually replaced Egyptian Coptic and many Berber languages (although Berber is still largely extant in many areas), and for a time to the Iberian Peninsula (modern Spain, Portugal and Gibraltar) and Malta.
With the patronage of the caliphs and the prestige of its liturgical status, Arabic rapidly became one of the world's main literary languages. Its spread among the masses took much longer, however, as many (although not all) of the native populations outside the Arabian Peninsula only gradually abandoned their languages in favour of Arabic. As Bedouin tribes settled in conquered areas, it became the main language of not only central Arabia, but also Yemen, the Fertile Crescent, and Egypt. Most of the Maghreb followed, particularly in the wake of the Banu Hilal's incursion in the 11th century, and Arabic became the native language of many inhabitants of al-Andalus. After the collapse of the Nubian kingdom of Dongola in the 14th century, Arabic began to spread south of Egypt into modern Sudan; soon after, the Beni Ḥassān brought Arabization to Mauritania. A number of South Arabian languages distinct from Arabic still survive, such as Soqotri, Mehri and Shehri which are mainly spoken in Socotra, Yemen and Oman, and are likely descendants of the languages spoken in the ancient kingdoms of Sheba, Magan, Ubar, Meluhha and Dilmun.