The wildlife reserve (formerly the Arabian Oryx reserve) was declared a reserve by virtue of the Royal decree No. 94/4 on 8/1/1994 having its surface area adjusted by virtue of the Royal Decree No.2007/11 along with changing its name into the Wildlife Reserve in Al Wusta Governorate by virtue of the Royal Decree No.2011/79. The surface area of the reserve has currently reached 2824.3 Km2.. The Wildlife Reserve lies in Al Wusta Governorate and it is characterized with the existence of Al Huqf cliff which is separated from the hills in the Far East by a depression which is a wide land of marshes including marshes called Al Huqf depression. The reserve is home to many wildlife species most important of which are the Arabian Oryx which were returned to its natural habitat in 1982. The Nubian Ibex, the Lynx, the Arabian and Sand dear, the sand cat, the houbara bustard and many other animals with wide spread of Acacia tortilis: (Simr), the Ghaf tree and Acacia ehrenbergiana.
In fact there is no water resource in the reserve however there are small water seepages in the slopes. When the rain falls, water gathers in the surface cavities and part of it permeates under the ground level through rock holes after that water appears in water seepage and ground water apprer in the surface in the Quhf. The only water source before 1956 was fog water. Oil companies have dag out water wells in both Hima and Al-Ajaiz and since that time the Government has built desalination plants in the reserve.