The Director General of Hydro and Carbon, Ministry of Petroleum and Mineral Resources, terminated the contractual agreement with the RNRL due to a number of reasons, Lallenmawia said.
The main reason being failure to initiate any work by the NAFTGAZ (Ukraine), one of the three partners of the RNRL, assigned to explore south Mizoram for hydrocarbon deposits, he said.
"The company, which was awarded the contract in 2007, was yet to begin drilling and prepare estimates," sources in the Geology and Mineral Resources said, adding that the work would soon be globally re-tendered.
Mizoram is estimated to have 100 billion cubic deposits of gas.
Other firms like the ONGC and the OIL have taken up the exploration in earnest in different parts of the state, the sources said.
The OIL had done drilling in Keifang and Maubuang in Aizawl district and Thenzawl in Serchhip district while the ONGC had already discovered gas in Mizoram-Assam border Kolasib district's Meidum area, the sources added.