Most of the growth came from the oil sector.  The government is forecasting a 7.7% GDP growth for the upcoming Iranian year (starting March 21, 2017)

The Central Bank of Iran, in its latest report on the country's economic growth, said the gross domestic product during the first half of the current fiscal year (started March 20) grew 7.4% compared with last year's corresponding period.  According to the CBI report, most of the growth came from the oil sector.