The Omani Rial is the official currency of Oman, abbreviated as OMR in forex markets. It is one of the highest-valued currency units in the world, pegged to the US Dollar at approximately 0.385 OMR per USD.
Example
“A trader noted that 1 Omani Rial equaled roughly $2.60, making it one of the most valuable currency units, though its dollar peg meant limited forex speculation opportunities.”