TEHRAN -- Oil Minister Kazem Vaziri-Hamaneh said on Sunday Iran has signed total of energy deals valued at $128 billion over the past year.

Some of the deals are under negotiations and others are underway, the minister added, while addressing attendees of first nationwide conference on public transportation.

The senior official also said that Iran will resolve drop in gas exports to Turkey within the next 20 days.

He added that domestic gas consumption has been increased by 30 percent compared to last year, which is the main reason behind recent reduction in gas exports to Turkey.

However, with the operation of two refineries in upcoming days, the problem will be resolved, Hamaneh noted, without giving details on refineries.