The transfer follows President Obama's pledge Tuesday night to "keep working to shut down the prison at Guantánamo," a promise he has highlighted in the past three State of the Union addresses.

The move means that 14 people have left the prison in 2016. On Monday, Mohamed al Rahman al Shumrani was sent to his native Saudi Arabia, almost exactly 14 years after he first arrived in Guantánamo. Last week, one Kuwaiti man was sent home and two Yemeni men were resettled in Ghana.

The names of the men transferred to Oman are Fahed Abdullah Ahmad Ghazi, Samir Naji al-Hasan Muqbil, Adham Mohamed Ali Awad, Mukhtar Yahya Naji al-Warafi, Abu Bakr Ibn Muhammad al-Ahdal, Muhammad Salih Husayn al-Shaykh, Muhammad Said Salim Bin Salman, Said Muhammad Salih Hatim, Umar Said Salim al-Dini, and Fahmi Abdallah Ahmad Ubadi al-Tulaqi. They are all Yemeni.