Abu Dhabi has extended the tender closing date for two packages on phase two of its Nasr offshore oil field development to at least mid-August after the Ramadan and Eid al-Fitr period, according to industry sources.

Project owner Abu Dhabi Marine Operating Company (Adma-Opco) was expected to issue the tenders for phase two of the Nasr development in April this year, but the process has been delayed by several months.

A source close to the tendering process said there are potential issues with a change to the project’s front-end engineering and design (feed) that need to be settled before the tenders can be floated.

The company will carry out the phase two Nasr development with two engineering, procurement and construction (EPC) packages: pipelines and platforms. Adma-Opco is expected to tender the smaller pipelines package first, with platforms to follow later in the year.

The project’s feed phase was carried out by US-based Fluor Corporation, while Shaw Group, also based in the US, won the scheme’s project management consultancy (PMC) contract.

Nasr phase one, the early production facilities, is currently under execution. The EPC contract was awarded to India-based contractor Larsen & Toubro in 2011.

Adma-Opco is majority-owned by the state-run Abu Dhabi National Oil Company (Adnoc), with minority stakes held by UK-based BP, France’s Total and Japan Oil Development Company (Jodco).