A set of events shook the oil world this week: A tiny shareholder won a battle with Exxon, investors put pressure on Chevron and a Dutch court ordered Shell to slash emissions.
Royal Dutch Shell has signed an agreement to develop oil and gas fields in Iran, despite the nuclear deal's uncertain future. It's the largest energy company to return since sanctions were lifted.
The deal would put Shell on track to surpass ExxonMobil as the world's largest publicly traded oil and gas company. It comes as global oil prices have dropped sharply.
