the brunei national dollar (bnd) is pegged at the same value to which currency
Brunei dollar Under a Currency Interchangeability Agreement in 1967, the Brunei dollar is interchangeable with the Singapore dollar at par. As such, the Brunei dollar is accepted in Singapore as "customary tender"; likewise, the Singapore dollar is accepted for payments in Brunei.[1]
Omani rial From 1973 to 1986, the rial was pegged to U.S. dollar at 1 rial = $2.895 USD. In 1986, the rate was changed to 1 rial = $2.6008 USD,[6] which translates to approximately $1 USD = 0.384497 rial. The Central Bank buys U.S. dollars at 0.384 rial, and sell U.S. dollars at 0.385 rial.[7] It is the third-highest-valued currency unit after the Kuwaiti dinar and the Bahraini dinar.