September WTI crude oil futures were trading at $84.12 late Thursday, down $6.35, or 7.02%, for the week. With Friday’s session still ahead, the weekly result is not final. But the week’s main story is clear: crude sold off hard when traders thought diplomacy could restore a workable route through the Strait of Hormuz, then rebuilt part of that risk premium when the military exchange returned. The week opened with Washington’s pause in strikes and Oman’s proposal for regional management of Hormuz. That gave traders something…