Add. DEA 2 Mar â18, it is recalled Sonangol EP is selling interests in blocks 20 + 21. It is now revealed that a dataroom will open at Sonangolâs Luanda HQ on 24 April and be available until 29 June 2018. Another data room will run in Houston 28 May - 1 Jun â18.Â  Pre-registration required via alienacaoblocos@sonangol.co.ao, with EoIâs due by 31 Jul â18 â by which time Cobalt will have pulled-out of both units. Block 20 covers 4,800 sq km in deepwaters of the Kwanza Basin, Sonangol P&P (op) 30%, partners BP + Sonangol E&P. Block 21 is 4,887 sq km in the same area, partner BP 40%.
Angola, Block 20