- Capital: Mascate
- Population: 4.527.000
- Surface: 309.500 km2
- Devise: le rial d’Oman (1 EUR=0,4304 OMR)
- Religion: Majorité Islam
- Appartient à: ACD, Ligue arabe, CCG, FMI, ONU
- Capital: Djibouti
- Population: 1.002.000
- Surface: 23.200 km2
- Devise: le franc de Djibouti
- Religion: Majorité Islam
- Appartient à: ACP, Ligue arabe, IGAD, FMI, ONU, UA