Despite a lack of oil, Dubai's ruler from 1958, Sheikh Rashid bin Saeed Al Maktoum, used revenue from trading activities to build infrastructure. Private companies were established to build and operate infrastructure, including electricity, telephone services and both the ports and airport operators. An airport of sorts (a runway built on salt flats) was established in Dubai in the 1950s and, in 1959, the emirate's first hotel, the Airlines Hotel, was constructed. This was followed by the Ambassador and Carlton Hotels in 1968.