RE:Shell,As many probably know, Shell famously backed out of the Stabroek Block in 2014 prior to the drilling of Liza-1 in 2015.
https://oilnow.gy/featured/we-didnt-realise-the-significant-potential-of-stabroek-block-says-shell-vp-exploration/
Obviously Shell has regret (who wouldn't) and it is enough for them to buy back in Corentyne? Other than the obvious companies (Exxon/HESS/CNOOC & Apache/Total), Shell probably knows the geology of the Guyana sub-basin best. They might even have old presentations (or even senior staff) still on board from the pre-2014 period and thus would have a inside edge in being able to compare the Corentyne seismic/well result with the work they have done internally on Statborek.
Guess we will see. It is internesting the Wei-1 is being projected to start drilling in May (based on reports filled with the government, as others have posted). Something would have to give ASAP if that were true.