Abu Dhabi Marine Operating Company (Adma-Opco) has extended the deadlines for commercial bids on four major offshore oil packages worth an estimated combined total of $1.95bn.

The packages, which companies submitted technical engineering, procurement and construction (EPC) bids for in June and July, are part of the full field development of the Satah al-Razboot (Sarb) and Umm al-Lulu offshore fields.

Commercial proposals for the estimated $500m Umm al-Lulu package one, the $300m Sarb package three and Sarb package four are now expected to be submitted in November. Meanwhile, the deadline for commercial bids on Umm al-Lulu package two is now expected in December.

At least 11 companies were involved in technical bids for the four packages.

The projects are part of Adma-Opco’s plan to add 300,000 barrels a day (b/d) of additional production from four new offshore fields, with about 100,000 b/d coming from both Umm al-Lulu and Sarb. The company is expected to tender the EPC on full development of a third field, Nasr, in December this year.

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).