Under the contract, WorleyParsons will provide project management, co-ordination, planning, design, engineering, construction management, contracting, procurement, project controls and other services for the new pipeline and pipeline facilities construction including compressor stations.

TANAP general manager Saltuk DÜZYOL said, "This contract is critical to the success of this major link in the Southern Gas Corridor which is regionally significant to meet future gas demand in both Turkey and the European Union."

The project, which has an estimated total project cost of $11.7bn, will transport Caspian natural gas from the Georgian-Turkish border to Turkey’s western border with Greece.

WorleyParsons chief executive officer Andrew Wood said, "WorleyParsons is delighted with the award of this strategically important project. We look forward to supporting TANAP in the successful delivery of this project."

The project will initially it carry production from Azerbaijan’s Shah Deniz Stage 2 project.