August 25, 2011. Reliance Industries has sub-let the only deep-sea drilling rig it currently has to Malaysia's Petronas, leaving no rig deployed at any of its oil and gas blocks in offshore India. Reliance has sub-let its Transocean-owned ultra-deep water drillship Dhirubhai Deepwater KG-2 to Petronas at least till the year-end. Dhirubhai Deepwater KG-2, a high specification ultra-deep water drillship capable of operating in 12,000 feet of water and drilling to 35,000 feet, may drill two wells for Petronas off the coast of Brunei, beginning next month, which may take up to four months to complete.