Only two of the dead worked at the natural gas field.
A large natural gas field has been discovered 3 miles south of the city.
The extent of the gas field is not yet known.
By 1965, five oil and 11 natural gas fields had been developed.
The gas field is expected to be launched in 2016.
The gas field is located 115 miles south of the island.
Iran had been after capital to develop the gas field.
And two large gas fields could produce an additional $1 billion over 20 to 30 years.
Currently there are known more than 180 oil and gas fields.
The area sits on top of former natural gas fields.
