KOHIMA, March 18: The ONGC has so far drilled 30 exploratory oil wells at Changpang area under Wokha district, out of which nine were producing oil on trial basis but had been suspended since 1994, reports UNI. The annual administrative report which was tabled in the State Assembly by the Geology and Mining Department on Thursday, mentioned that four exploratory oil wells at Chumukedima-Tenephie area in Dimapur district and one in Changki area under Mokokchung district were drilled by ONGC, but these wells had not yielded positive results due to hydro-carbon deposits. The commission had so far...