Spain’s Tecnicas Reunidas (TR) has been awarded a $700m contract for package three of the Integrated Gas Development (IGD) expansion in Abu Dhabi.

The engineering, procurement and construction (EPC) deal, which was awarded by Abu Dhabi Gas Industries (Gasco), includes several onshore gas processing units, gas pipelines, condensate pipelines and interconnects.

The project is part of state-owned Abu Dhabi National Oil Company’s (Adnoc’s) programme to produce 400 million cubic feet a day (cf/d) of additional gas from its offshore fields in order to increase onshore gas sales.

TR is expected to carry out the contract over the next 40 months.

The deal was tendered in the second quarter of 2014, with EPC contractors submitting both technical and commercial proposals.

Other companies vying for the contract were thought to include India’s Larsen & Toubro, French group Technip and Italy-based Tecnimont.

The front-end engineering and design (feed) for the IGD expansion was carried out by US-based Fluor.

Adnoc’s companies have yet to award several packages on the IGD expansion, including work on the offshore pipeline and the gas treatment plant on Das Island.

The original $11bn IGD was completed in 2014. The operation has the capacity to process 1 million cf/d of gas from the offshore Umm Shaif field.