The majority of people in the Arab world adhere to Islam, and the religion has official status in most countries. Shariah law exists partially in the legal system in some countries (especially in the Arabian peninsula), while others are legislatively secular. The majority of the Arab countries adhere to Sunni Islam. Iraq and Bahrain, however, are Shia majority countries, while Lebanon, Yemen, and Kuwait have large Shia minorities. In Saudi Arabia, Ismailite pockets are also found in the eastern Al-Hasa region and the southern city of Najran. Ibadi Islam is practiced in Oman, where Ibadis constitute around 75% of Muslims.