BEL 1 is also SNE 4, page-3

From the CNE Half year report might help answer your Question....

"Now this particular well, I will come onto describe it a little bit more later because actually this is an exploration well primarily to the Bellatrix prospect but we have now found that the Bellatrix prospect overlies the northern end of the SNE field on the latest 3D processing which is very convenient. So we manage to get more bangs for our buck in this particular well. This will define the northern end of the field, allow us to characterise the reservoirs there. We will have an extensive logging programme here. At the moment there isn’t a firm coring programme here or a firm testing programme. Obviously results will depend a little bit on how the first two wells also go. So we have some flexibility here. The key is that this is a well that will be drilled to gather both exploration and development information."

Cheers Whisky