Archive · 10 Aug 2026
Exxon Links $80 Billion Kazakh Oil Venture to Feud Resolution
There is a giant oil field under the sea near Kazakhstan called Kashagan, one of the biggest oil discoveries in decades when it was found in 2000.
A big oil company called ExxonMobil wants to spend about $80 billion to build a new part of the field with Kazakhstan.
But before that, the oil companies and the Kazakhstan government are arguing over a huge amount of money, about $150 billion.
The government says the companies owe the money because the project was very slow and money was lost while waiting.
Exxon says the argument should be solved first, and then the new building can start.
The plan would also create a new partnership with Kazakhstan's own oil company, KazMunayGas.
If the new part is built, it could make up to 600,000 barrels of oil every day.
Other oil companies, like Shell and Eni, could join in with smaller shares.
But a leader at KazMunayGas says the news report about the plan is not accurate, so nothing is final yet.
ExxonMobil has told Kazakhstan that a potential $80 billion joint investment to expand the Kashagan oil field depends on resolving a long-running $150 billion dispute, sources say.
The proposed equal venture with state-owned KazMunayGas would develop the field's western part and could produce up to 600,000 barrels a day.
Kazakhstan's claims total about $150 billion, mostly for lost revenue during development delays, plus a $5 billion environmental fine.
KazMunayGas Chairman Askhat Khassenov called the report 'inaccurate information,' saying the company does not confirm the Bloomberg story.
Current Kashagan partners like Eni, Shell, TotalEnergies, CNPC and Inpex could be offered minority stakes, with claims released under set conditions.
- Who
- ExxonMobil, KazMunayGas and the Kazakhstan government, plus Kashagan partners Eni, Shell, TotalEnergies, CNPC and Inpex.
- What
- A potential $80 billion equal joint venture to develop western Kashagan, which Exxon has linked to resolving the $150 billion dispute.
- When
- Reported on Thursday and Friday; Bloomberg first reported Exxon's initial Kashagan proposal last year.
- Where
- Astana, Kazakhstan, and the Kashagan oil field.
- Why
- Exxon wants to unlock about 10 billion barrels of oil and add up to 600,000 barrels a day of production, but wants the long-running claims resolved first.
ExxonMobil and international partners
Kazakhstan and KazMunayGas
Conditional $80 billion investment
ExxonMobil and international partners
The $80 billion Kashagan expansion should move forward only once the long-running $150 billion dispute with the government is resolved.
Kazakhstan and KazMunayGas
KazMunayGas Chairman Askhat Khassenov says the report is 'inaccurate information' and the company does not confirm the conditional nature of the investment.
The $150 billion claims
ExxonMobil and international partners
The government's claims, mostly for lost revenue during development delays, are disputed and subject to international arbitration, along with a $5 billion environmental fine.
Kazakhstan and KazMunayGas
The Kazakh state maintains claims of about $150 billion, mostly for lost revenue during delays, and a $5 billion environmental fine against the Kashagan partners.
Who develops western Kashagan
ExxonMobil and international partners
Exxon would lead a new $80 billion equal joint venture with KazMunayGas, offering current partners minority stakes in the western Kashagan development.
Kazakhstan and KazMunayGas
Eni has separately signaled to Kazakhstan that it wishes, with some unnamed partners, to develop western Kashagan's oil resources instead.
- Proposed investment
- $80 billion
- Government claims
- About $150 billion, mostly for lost revenue during development delays
- Environmental fine
- $5 billion
- Target production (western Kashagan)
- Up to 600,000 barrels a day
- Current output (eastern Kashagan)
- About 450,000 barrels a day
- Total recoverable reserves
- About 16 billion barrels
- Barrels Exxon seeks to unlock
- About 10 billion barrels
- Timeline
- Final investment decision in 2030; concept may cost $250 million; about $2 billion in FEED spending from 2028