New rules on ship emissions herald sea change for oil market
New rules coming into force from 2020 to curb pollution produced by the world's ships are worrying everyone from OPEC oil producers to bunker fuel sellers and shipping companies.
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### Instruction: New rules on ship emissions herald sea change for oil market

### Response: New rules coming into force from 2020 to curb pollution produced by the world's ships are worrying everyone from OPEC oil producers to bunker fuel sellers and shipping companies.