The official currency of the Sultanate of Oman in the Middle East, the Omani rial (OMR) is one of the world's strongest currencies. Subdivided into 1,000 baisa, it's issued by the Central Bank of Oman in notes and coins of various denominations. Omani rials are pegged to the United States dollar at a fixed exchange rate, which keeps the Omani currency's value stable and mitigates the effects of volatility.
Some online gambling venues, including live casinos, accept OMR deposits. These live casinos also allow players to gamble and withdraw their winnings in the Omani currency, so they don't have to worry about exchanging or converting their money.