The US contractor has, however, remained mum on key details of the lump-sum contract, most notably the deal value.

The award is made up of a package of various engineering, procurement, construction and installation (EPCI) projects involving a number of brownfield developments.

Work on the contract is expected to stretch out until the second quarter of 2018.

"The package of various EPCI projects that make up the lump sum award represent the largest single award for McDermott’s Middle East Area operations in company history," the Houston-based contractor said on Thursday.

"Revenue