Abdülhamid Han (ex Cobalt Explorer) is a Turkey-flagged seventh-generation ultra deepwater drillship owned and operated by the Turkish Petroleum Corporation.

[1][2][3] The US oil and gas company Vantage Drilling International ordered the construction of the drillship in 2013,[1][4] and prepaid US$59.5 million.

[2] She was built in 2014 by Daewoo Shipbuilding & Marine Engineering (DSME) at its shipyard in Okpo, Geoje, South Korea, and christened Cobalt Explorer.

[11] The vessel's drawworks of type AKMH Wirth GH 9000 EG is powered by a 6,700 kW (9,000 hp) motor featuring a hookload capacity of 1,100,000 kg (2,500,000 lb) at the 104 m (341 ft) high tower.

[12][13] On 9 August 2022, the drillship was deployed from the Port of Taşucu to her first mission towards the "Yörükler-1" Well 55 km (30 nmi) off Gazipaşa, Antalya to explore hydrocarbon reserves in the Mediterranean Sea.