According to local sources on 15 April 2019, Anadarko and Shell South Africa Upstream B.V. (Shell) signed an agreement transferring a 40% interest in Block 5/6/7 to Shell. Anadarko will remain operator until the Total Occidental deal is completed, at which point Total will gain Anadarkoâs 40% stake in the block and take over as operator (See: Anadarko Petroleum Corp to be acquired by Occidental (Total will take Anadarko's African assets), Chevron decides not to increase its offer). Â   The block covers some 81,000 sq km primarily atop the Orange Sub-basin.   Possible seismic acquisitions:   Both PGS and Spectrum filed application with the Petroleum Agency ahead of potential 2D and 3D acquisitions which would include Block 5/6/7 (See: Petroleum Geo-Services ASA (PGS) plan a 2D and 3D seismic acquisitions off the South and West and Spectrum ASA proposed 2D Speculative Seismic Survey off the South-West and South Coast). Â Â   Exploration to date:  In March 2013, Anadarko completed a Seafloor Geochemical Exploration survey designed by Anadarko and partners. The survey involved the acquisition of multi-beam echo sounder data (MBES) together with on board seep mapping equipment. Roughly 56,000 sq km were covered by the survey which provided bathymetry and backscatter MBES data for identification of natural hydrocarbon seeps on the seafloor. In February 2013 a 2D seismic survey was completed, using Dolphin Geophysicalâs âArtemis Atlanticâ vessel. The survey started in early December 2012 and involved the acquisition of approximately 6,250 km of 2D data.  Two exploratory wells (C-B 1 and O-A 1 were drilled in 1988 and 1991 respectively) and two stratigraphic wells (DSDP 0360 and 0361 were drilled in 1974 and 1975 respectively) have been drilled within the area that made up the Block 5/6 area all of which were plugged and abandoned as dry.  As of mid-April 2019, interests in the licence are as follows: Anadarko operates the tract with a 40% stake, Shell holds a 40% stake and PetroSA holds the remaining 20% stake.
South Africa (Orange B)	Anadarko (->40%, Petro O&G SA 20%) has reportedly transferred a 40% interest to Shell in block 5/6/7. Anadarko retains operatorship of the 73,062-sq km block until the Total-Occidental deal is completed, when Total will take over. 