International benchmark Brent crude futures with September delivery traded 0.3% lower at $72.72
International benchmark Brent crude futures for August were last seen 1% lower at $79.02 per barrel,
Pakistan's army chief had left for Iran
International benchmark Brent crude futures with June delivery traded 0.5% higher at $99.03 per barre
U.S. West Texas Intermediate futures lost 72 cents, or 1.13%, to $62.85
Tensions escalated after China imposed export restrictions on several rare earth elements