"We won the deal over the weekend," a Samsung Heavy spokesman said by telephone.
On Friday, Samsung said it had secured a 551.4 billion won ($597.1 million) order to build a drillship for a different company in the Americas.
The company aims to win orders worth $15 billion for the entire year, up $4 billion from its initial goal. It attributed the surge in orders to bullish demand in new markets like China and India, and thriving projects to develop energy in deep sea and artic regions, which are bolstered by soaring oil prices. Samsung Heavy Industries has seen an up to 100 percent increase in orders since 2001. It won orders worth $1.7 billion in 2001, $6.4 billion in 2004 and $12.6 billion in 2006.