Arbitration court rejects $12 billion of Kazakhstan’s Kashagan claims
The Permanent Court of Arbitration in The Hague has thrown out $12 billion of Kazakhstan's claims against Western oil majors over the Kashagan field, ruling they were filed too late. The decision landed the same day Kazakhstan announced a $3 billion infrastructure commitment from the International Finance Corporation (IFC).

The Hague-based court found that the $12 billion in claims, which covered costs Kazakhstan says it incurred between 2011 and 2015, had been filed after the statute of limitations expired. A separate $8 billion portion of the claims was allowed to proceed.
Kazakhstan has been seeking compensation from a consortium of companies including ExxonMobil, Shell and TotalEnergies over delays and cost overruns in developing Kashagan, an offshore field in the Caspian Sea near the city of Atyrau. The project faced major technical hurdles from shallow waters, extreme seasonal temperatures and a reservoir rich in corrosive, toxic hydrogen sulfide, which forced the consortium to build artificial islands for drilling and processing rather than conventional platforms.
Kashagan, estimated to hold more than 13 billion barrels of recoverable reserves by the US Energy Information Administration (USEIA), did not begin production until 2016 after years of delays and overruns. Beyond the arbitration dispute, Kazakhstan is also pursuing a separate claim exceeding $130 billion for lost revenue tied to the delayed start. ExxonMobil has said further development of the field is on hold pending resolution of the arbitration cases.
On the same day as the court’s ruling, Kazakhstan’s State Agency for Strategic Planning and Reform said the IFC, the World Bank’s private-sector arm, will advise on infrastructure projects worth $3 billion between 2026 and 2031, targeting transport networks and water management through public-private partnerships. The agency said such partnerships improve “the quality of infrastructure design, construction, and operation.”
The arbitration setback comes as Kazakhstan’s oil output is already under pressure: production in the first eight months of 2026 fell 8.4% from a year earlier to 61.7 million tons, prompting officials in August to cut their full-year output forecast to 96 million tons from almost 100 million tons produced in 2025. Disruptions to the Caspian Pipeline Consortium route tied to the Russia-Ukraine war have been a key factor behind the decline.
Why it matters: A reduced compensation claim and continued uncertainty over Kashagan’s future development could affect the pace of Kazakh crude output, a factor relevant for global oil supply and Brent crude pricing given the field’s large reserve base and the involvement of major Western producers.
Source: OilPrice.com