The $94.9 million project is expected to be completed by the end of next year.
Works will comprise refurbishment of an 87-kilometre pipeline that links Ashburton West to a compressor station along the Dampier to Bunbury gas pipeline, as well as construction of new pipeline infrastructure to increase its capacity.
DBP said the project would require a workforce of approximately 160.
DBP chief executive Stuart Johnson said the project also would include a 30-year take-or-pay gas transportation contract with Chevron, to provide an initial gas transmission capacity of 337 terajoules per day, with expansion capacity up to 600TJ/day.
“DBP prides itself as being a safe and reliable developer, owner and operator of critical pipeline infrastructure in Western Australia and we will maintain our high standards on this project,” Mr Johnson said.
Duet Group shares last traded at $2.08 before entering a trading halt this morning.