Eco mentioned in articleEco is identified as a Total partner in this article, which also noted drilling in 3b 4b.
Imo it's a bit confusing.
Given the immense extent of the Orange basin, with major oil discoveries in the central and northern areas, the southern third of the basin will soon come into focus. TotalEnergies, with partners AOC, Eco, Qatar energy, Ricocure, Sezigyn and others, have a 3 to 5 well wildcat programme planned across their impressive acreage portfolio from the Namibia / RSA border to the existing discoveries at Brulpadda in South Africa. The main focus will be large Orange Basin Cretaceous targets in Blocks 3B/4B, Deep Western Orange Basin, and SW Deepwater Orange Basin.
https://geoexpro.com/new-light-oil-discovery-draws-attention-away-from-the-orange-basin-central-axis-to-northern-promise/