WTI will not close above $87 on August 12. As of 00:20 BST WTI was $83.48 with a daily change of $0.28 or 0.34 percent and Brent was trading at $89.63, after WTI’s $83.48 close on August 11. Faltering US-Iran diplomacy and fresh attacks on ships kept supply fears alive, and Iran reiterated the Stra…