Related Clues:

• It's ruled by a sultan
• See 98-Down
• Former British colony
• Gulf of ___
• Muscat's sultanate
• Gulf off Iran
• Gulf off Somalia
• Gulf sultanate
• Where Muscat is
• Port city built around an old volcano crater
• Middle East Gulf
• Major oil port
• Muscat's former partner
• Persian Gulf state
• Somalia's gulf