- Capital: Doha
- Population: 2.831.000
- Surface: 11.490 km2
- Devise: le rial du Qatar (1 EUR=3,8788 QAR)
- Religion: Majorité Islam
- Appartient à: ACD, Ligue arabe, CCG, FMI, ONU, OPEP
- Capital: Mascate
- Population: 4.527.000
- Surface: 309.500 km2
- Devise: le rial d’Oman (1 EUR=0,4097 OMR)
- Religion: Majorité Islam
- Appartient à: ACD, Ligue arabe, CCG, FMI, ONU