Singapore-based KrisEnergy has signed a letter of award with Vietnam’s PV Drilling for PVD III jack-up drilling rig. The 2009-built rig will be used to drill five development wells at KrisEnergy’s Apsara Mini-Phase 1A development offshore Cambodia. The Apsara is an offshore development oil and gas asset located in the Khmer Basin of the Gulf of Thailand with approximately 3,083 sq. km of gross acreage in which KrisEnergy has a 95% stake.