Abu Dhabi has extended the deadline by a week for bids on two onshore oil field projects worth an estimated combined $350m, according to sources familiar with the schemes.

Abu Dhabi Company for Onshore Petroleum Operations (Adco) asked prequalified companies to submit technical engineering, procurement and construction (EPC) bids on South East Tie-In packages C and D on 19 July, pushing the date back from 12 July.

MEED reported in October 2015 that Adco awarded packages A and B for the South East Tie-In for a combined $345m.

The companies prequalified to bid for packages C and D are:

• Al-Asab General Contracting Company (UAE)
• Alsa Engineering & Construction (UAE)
• Arabian Industries (Oman)
• CAT Group (UAE)
• China Petroleum Engineering & Construction Corporation (China)
• Descon (Pakistan)
• Galfar Engineering & Contracting (Oman)
• Matrix Construction (UAE)
• Robtstone (UAE)

The work includes tie-ins at different types of wells at fields in Adco’s South East Asset.

Package C covers the Asab and Sahil fields, including facilities at 30 wells on the Asab field. Package D includes 40 tie-ins at wells on the Shah, Qusahwira and Mender fields.

The second phase of expansion at the Mender field has also been merged with South-East tie-in Package D, calling for 62 well heads, 20 water injectors and associated facilities. Adco is currently developing the Mender field for the first time to a capacity of about 20,000 barrels a day.

The previous South-East Tie-In packages were awarded in 2015. The EPC contract for South East Tie-In Package A was awarded to Al-Asab General Contracting Company for $175m, while Descon won the $170m contract on Package B.

Adco is a joint venture of Abu Dhabi National Oil Company (Adnoc), France’s Total, Japan’s Inpex and South Korea’s GS Energy. The onshore operator is expected to award more stakes to bring the interest held by international oil companies to 40 per cent.