Algeria
Islam is the predominant religion in Algeria, with its adherents, mostly Sunnis, accounting for 99% of the population according to a 2012 CIA World Factbook estimate, and 97.9% according to Pew Research in 2010. There are about 150,000 Ibadis in the M'zab Valley in the region of Ghardaia.
Awlad Sidi Shaykh
The Awlad Sidi Shaykh (or Ouled Sidi Cheikh) was a confederation of Arab tribes in the west and south of Algeria led by the descendants of the Sufi saint Sidi Shaykh. The Awlad had religious authority, and also owned agricultural settlements and engaged in trade. During the French occupation of Algeria they alternately cooperated with and opposed the colonialists.