Dubai-based Essdar Investments has made an offer to buy notes sold by Oman's stalled Blue City development at a discount, Bloomberg has reported. The company said it will pay 20% of face value for class B1 and class C securities in an offer that closes July 21. Blue City, near the capital, Muscat, was supposed to include more than 200 villas, 5,000 apartments, four hotels, two golf courses and a clubhouse.