The only native oryx species outside Africa is the Arabian Oryx (Oryx leucoryx). This species was extinct in the wild by 1972, but since then free-ranging populations have been established in Israel, Oman, and Saudi Arabia. Arabian Oryx were formerly present throughout the Arabian Peninsula, extending north to Israel, Jordan, Kuwait, Iraq, Syria, and Sinai. Poaching and overhunting in Oman eliminated the last wild individuals. Fortunately, captive breeding efforts had begun in the 1950s and reintroduction efforts began in the early 1980s and are ongoing. The world captive population is around 6,000 to 7,000, but the re-introduced free-ranging populations include only around 250 mature individuals.
(Kingdon 1997; Groves 2011)