July 17, 2014 Malaysian Airlines Flight 17 was shot down by Russian supported Ukrainian rebels.
Literally, oil (WTI and Brent) begin the decent.
The conspiracy theory is that the price is being manipulated by the non-existent US central Office of Oil Manipulation and Fuck-off-Putin Department.
The international outcry lead to serious sanctions, bringing global economic consequences. Affecting all but two countries (US and China) on the global stage.