On 28 December 2017, OIL India Ltd (OIL) announced an oil discovery in its Hukanguri 2 exploration well (presumably a new field wildcat). OIL is understood to have encountered two zones: one each in the Eocene Narpuh and Lakadong & Therria formations. Initial production testing results indicated that well produced oil at a rate of 55 cm/d (346 b/d) from an 18 m sand zone in the Narpuh Formation.Â  The Hukanguri 2 well is believed to be located in the Dum-Duma Block B ML in Assam Shelf.Â Â  Â  OIL is understood to have spudded the Hukanguri 2 in mid-2017 and was carrying out the production testing operations in Q3 FY 2017-18. Hukanguri 2 is believed to have been targeting a TD around 4,500 m.Â   OIL previously drilled Hukanguri 1 in 2002. Hukanguri 1 was spudded in June 2002 with OILâs land rig âE-1400-S5â and was later believed to be suspended in November 2002 after failing to encounter hydrocarbons. Hukanguri 1 had a TD of around 4,133 m.  Dum-Duma Block B ML comprises a 317 sq km area. OIL holds 100% interest in the Dum-Duma Block B ML, which was awarded on 26 November 1989 for a period of 20 years. The licence was subsequently renewed for a further 20 years, with effect from 26 November 2009.Â  Â  Â 
Hukanguri 2 op. by Oil India (100%) in Dumduma block, found 2 zones, one each in Narpuh & Lakadong-Therria Fm. On testing, a 18m Narpuh Sand, produced oil at rate of 400 bo/d. Presently, the well is under extended prod testing. This is the first commercial oil disc. in the Narpuh play.