Shell and BP have separately started arbitration against an LNG group for failure to supply contracted cargoes as prices for the gas started to soar.
The two have accused Venture Global LNG of selling contracted cargoes to the customers as prices rose, meaning they missed out on millions of dollars of sales.
Venture Global said an extensive commissioning of its modular facility was the reason for the issues and it was in compliance with its contracts.
LNG prices in Europe jumped last August to a peak of $89 per million (mmBtu) from about $6 to $10 per mmBtu in 2018.
The companies filed their cases at the London Court of International Arbitration.