As of early April 2018, it is understood that Oil and Natural Gas Corporation Ltd (ONGC) was carrying out drilling operations in the 12-1/4â section at the GS-15 AS exploration well (presumably an outpost well for the GS-15 14 field), having drilled to a depth of 2,317 m. GS-15 AS is located in Vainateyam A ML (Krishna-Godavari Basin), around 3 km northwest of the GS-15 14 field. Â   ONGC is understood to have spudded GS-15 AS in late February 2018 using the âAban IIâ jack-up rig.   GS-15 AS has a planned TD of 3,726 m.   GS-14 14 field was discovered in September 2008 and is located in Vainateyam A ML, around 11 km to the southwest of the GS-15 field in Krishna Godavari Basin. Discovery well GS-15 14 (GS-15-AO) had a TD of 3,189 m and encountered oil and minor gas from the Miocene Ravva Formation and Pliocene Godavari Formation.Â  Â     The Vainateyam A mining lease (ML) covers an area of around 208 sq km and was awarded to ONGC on 20 September 2008. ONGC holds 100% interest in the lease.
India (Ravva Sub-basin (Krishna-Godavari B.)) Ravva