You know ,....based on where this is...the rift valley...what does this do to the legend of oil being created by remnants of dinosaurs...etc.?
Great question Ern—maybe our resident geological fellows can help. I always thought volcanics were a sure sign that any hydrocarbons were long since cooked out, however, I have also heard alternative theories as well.
Organic rich shales were always source rocks when I was in the patch.