"As on date, GSPC has drilled 15 wells, of which 11 have proven reserves of 10.8 tcf. The gas production in the field, spread across 1,850 sq km, is likely to kick off after two-and-a-half years," Saurabh Patel, the state's energy and petrochemicals minister, informed the assembly. Of the 15 wells, GSPC received success in 11 wells, while three showed no gas flow. Testing in one well is yet to be done.