As the political crisis wracking the Gulf Cooperation Council (GCC) exits its fourth week, Qatar is hitting back as only it can. A series of developments this week underscored the limits of trying to isolate Qatar when many of the world’s largest economies and companies depend on its gas reserves.

Qatar is standing firm against the Saudi and Emirati-led efforts to isolate it and this week sent a message that it’s business as usual. The past week has seen ExxonMobil CEO Darren...