Multiple choice general knowledge Rial??? Oman Saudi Arabia Cuba Egypt Reveal answer Fill a bubble to check yourself A Correct answer Explanation The Omani Rial (OMR) is the official currency of Oman. It is one of the highest-valued currencies in the world and is subdivided into 1000 baisa. The rial was introduced in 1970, replacing the Gulf rupee, and is issued by the Central Bank of Oman.