- Capital: Mascate
- Population: 4.527.000
- Surface: 309.500 km2
- Devise: le rial d’Oman (1 EUR=0,4267 OMR)
- Religion: Majorité Islam
- Appartient à: ACD, Ligue arabe, CCG, FMI, ONU
- Capital: Manama
- Population: 1.542.000
- Surface: 785 km2
- Devise: le dinar de Bahreïn (1 EUR=0,4266 BHD)
- Religion: Majorité Islam
- Appartient à: ACD, Ligue arabe, CCG, FMI, ONU