Cairn Energy India Pty Ltd. (CEIL), on Tuesday, said it had discovered oil in Nagayalanka-SE-1 well in the onshore block of Krishna-Godavari Basin.

CEIL, the wholly-owned subsidiary of Cairn India Ltd. (CIL), has notified the management committee — comprising Director-General of Hydrocarbons, ONGC and Ministry of Petroleum and Natural Gas — of the discovery in the onshore block KG-ONN-2003/1.

A gross 57m hydrocarbon column in Cretaceous sandstone between the depths of 4369.2 and 4426mMD had been interpreted from data to be oil bearing. Further testing is ongoing and an appraisal will be required to establish the commerciality of the Nagayalanka-SE discovery, a release from the company says.

CEIL (24 per cent) is the operator of the block while CIL holds 25 per cent with the other joint venture partner ONGC holding 51 per cent. Nagayalanka SE is the second discovery in this block and Nagayalanka-SE-1 well is the second successive discovery well in this block by the Cairn-ONGC joint venture consortium.

The Nagayalanka-SE-1 well was spud on November 25, 2011, as an exploration well, to test hydrocarbon potential of Cretaceous Gollapalli sands.