Having less sweeping market consequences--but very key to the price discovery of the energy sector--is the news that the United States and five other nations have a struck an accord with Iran exchanging deterred nuclear development for easing of economic sanctions.
After what Israel calls a historic mistake the Iran nuclear deal really could open up a new front in the OPEC production war. We know that OPEC's main reason for flooding the market was to try to defend market share from the upstart U.S. shale producer. But the potential return of Iranian oil may actually turn OPEC's production war away from the United States and focus on Iran.
A Greek deal and a possible Iran deal is giving crude oil mixed signals. On one hand, it seems that a deal in Greece will allow the market to focus on the more positive data that has been coming out of the Eurozone.
Crude prices slid after a Greek deal hope rally, only to be slowed by a report by the IEA. The report warned that demand for oil will slow in 2016, and Greece, China and the potential return of Iranian oil is not going to improve that outlook.