0649 GMT March 21, 2018
Tehran is looking to increase its crude output, and with 37 billion barrels of oil, the Azadegan field is Iran's largest, shared with neighboring Iraq, Reuters reported.
Iran said in June that international energy companies including France's Total, Malaysia's Petronas and Japan's Inpex, have presented technical studies on the development of the Azadegan field for the tender.
"The companies are still assessing the technical surveys. The tender will not take place in 2017," managing director of the National Iranian Oil Company (NIOC), Ali Kardor said.
The tender for developing Azadegan oilfield, Iran's first such tender since the lifting of international sanctions more than a year ago, has been postponed several times.
Kardor said the tender has not been affected by US President Donald Trump's policies against Iran and added that the Chinese, Russian and European companies were still committed to investing in Iran.