Turkey Tanker Spat Escalates With Millions of Barrels Stuck
A standoff over sanctions and insurance that has caused a jam of oil tankers at the key Bosphorus shipping strait escalated on Thursday, leaving millions of barrels of crude stuck.
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### Instruction: Turkey Tanker Spat Escalates With Millions of Barrels Stuck

### Response: A standoff over sanctions and insurance that has caused a jam of oil tankers at the key Bosphorus shipping strait escalated on Thursday, leaving millions of barrels of crude stuck.