As announced on 10 May 2018, Calima Energy via its local Namibian subsidiary Calima Energy (Namibia) Ltd was awarded an exploration licence covering Block 2813B. The undrilled block covers an area of 5,433 sq km within the Orange Sub-basin in water ranging in depths between 2,200 m and 3,100 m. It is located some 220 km offshore and to the north Totalâs Block 2913 and northwest west of Shells licence which covers Blocks 2913A, 2914B.  Calima Energy has committed to a minimum investment of USD 2,000,000 for the initial four-year term. The company plans to undertake an evaluation of existing data in and around the block and will acquire 2D or 3D data and undertake a detailed prospectivity review.   The primary reservoir objectives within the block are Upper Cretaceous slope-turbidite channels and basin-floor-fans.  Calima Energy operates the licence via its wholly owned subsidiary Calima Energy (Namibia) Ltd with a 56% interest. Partners in the licence are: Trago Energy Pty Ltd (20%), Harmattan Energy Ltd a subsidiary of Havoc Partners LLP (14%) and NAMCOR (10%).   The licence was previously operated by Grisham Assets Corp however, is understood to have lapsed in early May 2018.
As announced on 10 May 2018, Calima Energy via its local Namibian subsidiary Calima Energy (Namibia) Ltd was awarded an exploration licence covering Block 2813B. The undrilled block covers an area of 5,433 sq km within the Orange Sub-basin in water ranging in depths between 2,200 m and 3,100 m. 