New wells are now being drilled faster and more safely and efficiently than at any other time in Rumaila’s history. A record 89 new wells were drilled during 2025 – ahead of a planned 83 – representing the highest annual new well count since the formation of ROO.
Maximizing production from existing wells is also crucial. More than 2,000 workovers have been completed to renew old and underperforming wells to keep them flowing and to bring ceased wells back into production. new record was set in 2025 with 25 workover jobs completed in one month, with a 36% increase in the number of workovers completed when compared to 2024.
Electrical Submersible Pumps (ESPs) continued to play a major role in delivering high levels of oil production. In 2025, 63% of total production was attributable to ESPs, up from 57% in 2024. A 10-year programme is currently under way at Rumaila to increase the number of these to 1,500 – during 2025, 85 new ESPs were put online, and 99 replacement ESPs installed.
Other activities to support production have included upgrading hundreds of wells with chrome tubing to prevent corrosion and the use of advanced tools for acid stimulation, leak detection and fishing tasks to improve well bore effectiveness.
Smart coil units and mast coil units undertake a range of jobs without the need to erect workover rigs – a costly and time-expensive process. More than 80,000 ‘rigless’ well service jobs have been completed since 2010 to:
