Hi Saintk, Good to see someone do a few analytical calculations ;you are on the right track ; I have done a full model analysis with great help from directors ; My workings are for me + mates , but i have posted enough true results here and there on the final figures ....keep going with your line of thinking ;there is alot more of the story , and it will be happening shortly ,as soon as Gerceler [4,5] wells are finalised.