The FPF-1 (Floating Production Facility) for the Greater Stella Area is now on location in the North Sea.
Petrofac revealed the step forward in its latest interim results as the company returned to profit despite taking a hit on the Laggan Tormore project.
Earlier this month Ithaca Energy revealed the start-up costs at Stella would be reduced to $20 a barrel.
The company is also on-track for start-up of the project in November.
At the beginning of August, the FPF-1 began its sail away to the Stella field after completing its final marine system trials.