On 21 November 2017, ONGC Videsh Ltd (OVL) announced that it acquired 15% working interest in the Cooper Block (Block 2012A) from Tullow Oil plc (Tullow). OVL is a wholly owned subsidiary of Oil and Natural Gas Corporation Limited (ONGC), the National Oil Company of India. Therefore, Tullowâs stake in Block 2012A is now 10%, with Eco (Atlantic) Oil and Gas Ltd (ECO) still operating the permit with a 32.5% interest. Remaining partners are AziNam (32.5%) and NAMCOR (10%). OVL already completed a farm out deal with Tullow in Namibia in early October 2017, acquiring 30% stake in PEL 037 (Blocks 2012B, 2112A and 2113B).  To date (late 2017), operator ECO intends to explore the Osprey lead, for which Tullow's exploration team played a lead role so far to oversee processing and conduct the initial interpretation for the block partners. The lead is in water roughly 500 m deep and is covered by both 2D and 3D seismic data.  Block 2012A is located within the Walvis Sub-basin and covers 5,800 sq km in water ranging in depths from 20 to 500 m. A number of targets have been identified. They include basal Tertiary clastics and turbidites (2,000 to 2,300 m), Upper Cretaceous clastics and turbidites (2,400 to 2,700 m), and Lower Cretaceous carbonates (3,300 to 3,600 m).  Â 
Namibia (Southwest African Coastal B.) (It's a petroleum rights. Please summarize by yourself). In IHS database: Block 2012A op. by ECO ATL (32.5%, AZINAM 32.5%, TULLOW 25.0%, NAMCOR 10.0%) to be check.