ExxonMobil launches legal challenge to EU’s windfall tax on energy firms
US oil firm contests legal authority for ‘solidarity contribution’ to raise funds to offset soaring energy prices
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction: ExxonMobil launches legal challenge to EU’s windfall tax on energy firms

### Response: US oil firm contests legal authority for ‘solidarity contribution’ to raise funds to offset soaring energy prices