Iran could be ready to help Europe develop its liquefied natural gas market if and when sanctions are eased under a comprehensive nuclear deal, Petroleum Minister Bijan Namdar Zanganeh told diplomats and executives.

The Persian Gulf country, with the world’s second biggest natural gas reserves, would favor shipping liquefied gas to Europe rather than building a pipeline, Zanganeh said at an energy-security conference in Berlin on Thursday. European gas prices make large infrastructure projects like pipelines difficult, he said.

“I don’t rule out a pipeline but there are so many transport problems, legal issues and fees,” Zanganeh said. “That wouldn’t be our choice in the first instance.”