On 3 November 2018, Oil and Natural Gas Corporation Ltd (ONGC) reported in its results for Q2 FY2018-19, that it has made a new prospect discovery at the Bantumilli North 2 exploratory well, within the Malleswaram ML onshore block (Krishna-Godavari Basin). The well reached TD at 3,620 m. During testing, an interval in the Late Cretaceous Raghavapuram Formation flowed oil at 497 b/d, along with 42.535 Mcm/d (1.502 MMcf/d) of gas. ONGC also noted that the discovery had already been monetised and that it has opened up the area south of the Suryaraopeta field for further exploration.  Malleswaram ML covers an area of 232 sq km. It was awarded to ONGC with effect from 22 November 2011.   ONGC discovered the Suryaraopeta field in April 2000, with the Suryaraopeta 1 (SUAA) exploration well, which was drilled to a final TD of 2,600 m in late March 2000. Suryaraopeta 1 was the first well drilled on the Suryaraopeta structure, in the Bantumilli-Mahadevapatnam area. During testing, a sand horizon between 2,372-2,374 m in the Cretaceous Raghavapuram Shale Formation (Object IIA) was reported to have yielded 200 bo/d through a 6 mm choke, opening up a new area for exploration.
India (Krishna-Godavari B.) ? op. by ONGC (100.0%) in Malleswaram ML block