Oil and Natural Gas Corporation Ltd (ONGC) reported on 14 February 2019, in its Q3 FY2018-19 results announcement, that it had made a new prospect gas discovery at the Jantapathar 1Z well, within the Additional Golaghat Extn II A PML onshore block, in the Assam Shelf. The well reached TD at a depth of 2,681 m. It flowed on testing from the interval between 2,497.5â2,499.5 m at 2.84 MMcfg/d, and also from the interval between 2,481.5â2,484 m at 1.99 MMcfg/d. ONGC noted that the discovery had given impetus to exploration in the area between the Dayalpur field and the Hazarigaon field (approximately 4 km east and west, respectively, of Jantapathar 1Z).  The Additional Golaghat Extn II A PML covers an area of 61 sq km and comprises part of the 85 sq km Golaghat Extn IIA ML acreage. Golaghat Extn IIA ML was originally awarded to ONGC (100%) in January 2003, covering an area of 234 sq km. ONGC retains 100% interest in the licence.
Jantapathar 1Z (exploration) Additional Golaghat Extn II A PML, Assam Shelf - new prospect gas discovery. The well reached TD at a depth of 2,681 m. It flowed on testing from the interval between 2,497.5â2,499.5 m at 2.84 MMcfg/d, and also from the interval between 2,481.5â2,484 m at 1.99 MMcfg/d. ONGC noted that the discovery had given impetus to exploration in the area between the Dayalpur field and the Hazarigaon field (approximately 4 km east and west, respectively, of Jantapathar 1Z). The Additional Golaghat Extn II A PML covers an area of 61 sq km and comprises part of the 85 sq km Golaghat Extn IIA ML acreage. Golaghat Extn IIA ML was originally awarded to ONGC (100%) in January 2003, covering an area of 234 sq km. ONGC retains 100% interest in the licence.