Shell and Vitol accused of prolonging Ukraine war with sanctions ‘loophole’
Exclusive: Ukrainian economic adviser urges energy firms to heed deadline to halt trade of ‘Russian-origin oil products’
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction: Shell and Vitol accused of prolonging Ukraine war with sanctions ‘loophole’

### Response: Exclusive: Ukrainian economic adviser urges energy firms to heed deadline to halt trade of ‘Russian-origin oil products’