Brazil’s Surprise Oil Tax Puts $20 Billion in Investment at Risk
Shell and other drillers have sued to block the levy, which effectively yanks the welcome mat for oil majors.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction: Brazil’s Surprise Oil Tax Puts $20 Billion in Investment at Risk

### Response: Shell and other drillers have sued to block the levy, which effectively yanks the welcome mat for oil majors.