In the first half of 2025, bp and its co-venturers spent about $259 million in operating expenditure and about $558 million in capital expenditure on ACG activities, the company said in its report for the first half 2025 results.
During the first half of the year, the 4D high-definition ocean bottom node seismic programme on ACG completed processing of the data acquired in 2024 and commenced the data acquisition for the second year in June.
ACG participating interests are: bp (30.37%), SOCAR (31.65%), MOL (9.57%), INPEX (9.31%), ExxonMobil (6.79%), TPAO (5.73%), ITOCHU (3.65%), ONGC Videsh (2.92%).
BP Exploration (Caspian Sea) Limited is the operator on behalf of the Contractor Parties to the ACG Production Sharing Agreement.
During the first half of 2025, ACG continued to safely and reliably deliver stable production. Total ACG production for the first half of 2025 was on average about 327,000 barrels per day (b/d) (about 59 million barrels or 8 million tonnes in total) from the Chirag (21,000 b/d), Central Azeri (86,000 b/d), West Azeri (75,000 b/d), East Azeri (42,000 b/d), Deepwater Gunashli (54,000 b/d), West Chirag (24,000 b/d) and ACE (25,000 b/d) platforms.
On 18 February, ACG celebrated the 20th anniversary of the first oil production from the Central Azeri platform. To date, the platform has produced a total of 1.1 billion barrels (154 million tonnes) of oil.
In the second quarter, ACG successfully reintroduced water injection on the Chirag platform following an almost four-year pause. To achieve this, several critical upgrades were made on the platform including the redesign and modification of water injection pumps, the rebuild of the control system, as well as the drilling of a new injection well. The well was drilled using power from the topside and drilling generators, marking a first for the Chirag platform and eliminating the need for a separate diesel generator.
In addition, in the second quarter, ACG achieved the start-up of the first gas injection well on the ACE platform safely and on schedule.
At the end of June 2025, 143 oil wells were producing, while 46 were used for water and 10 for gas injection.