Malaysia's Perdana Petroleum has purchased two accommodation work barges (AWB) worth $84m from Nam Cheong, a global offshore marine firm and offshore support vessel builder.
The purchase order comes with an option to deliver another two vessels to Perdana, and brings the total contract value to RM1.5bn ($466m).
Nam Cheong chief executive officer Leong Seng Keat said that repeat orders from existing customers attest to the quality of the company's vessels and reflect the confidence and satisfaction of its customers.
"In addition to breaking new ground as the first of their kind in Malaysia and the largest to be built by Nam Cheong, these AWBs boast of the highest value per unit to be constructed by us," Keat said.
"In light of the rising momentum of E&P spending in the global oil and gas industry and robust demand for our vessels, we remain optimistic of our prospects in the year ahead."
The 123m-long ABS-class vessels, which can accommodate 500 people, are equipped with eight point mooring system and a 300t deck crane.
The vessels are being built as per Nam Cheong's build-to-order model in China and are scheduled to be delivered in 2016.
Perdana, which acquired one small sized AWB from Nam Cheong in July 2013, is an offshore marine services provider for the oil and gas industry in Malaysia and the South East Asian region.