"Given the current conditions, we do not have hope for exporting gas to Pakistan," Zanganeh was quoted as saying.
Earlier this month, Pakistani Petroleum Minister Shahid Khaqan Abbasi asked Iran for USD 2 billion to build its side of a controversial gas pipeline that has drawn threats of US sanctions.
Under those conditions, "it is seems improbable to export gas" to Pakistan Zanganeh added.
The Iranian side of the USD 7.5-billion project is almost complete, but Pakistan has run into repeated problems paying for the 780 kilometre section to be built on its side of the border.
Spooked by fears of US sanctions and lack of money supply, the Pakistanis have so far dragged their feet on completing the project on their side.