Petroleum Development Oman (PDO) has floated five tenders for mechanical, electrical and earthworks contracts at onshore oil and gas fields in the north of Oman.

The state energy company has asked interested firms to submit bids by 29 May.

Two of the tenders are for off-plot mechanical works on the Qarn Alam, Fahud, Yibal and Lekhwair fields. The scope includes the design, procurement and construction of pipelines for oil, water, steam and gas, along with well hook-ups and associated facilities.

PDO also tendered separate deals for earthworks on the Qarn Alam, Fahud, Yibal and Lekhwair fields. The scope of these works include well-pad design and construction, cellar and hard-stand concreting, access road construction and rig camp construction.

A fifth tender was floated for electrical works on all four fields. The scope includes the engineering, procurement and construction (EPC) of electrical infrastructure with transmission of up to 33kV.

All four fields are located in the north of PDO’s Block 6 concession in central Oman.

PDO accounts for more than 70 per cent of the sultanate’s crude production and nearly all of its natural gas supply. The government holds a 60 per cent stake in the company, with 34 per cent held by the UK/Dutch Shell Group, 4 per cent by France’s Total and 2 per cent by Portugal’s Partex.