I cannot speak for Tony, but you need to see something during your drilling that leads you to believe that you have something, or why spend the money. If you drill a well and have no oil shows, drilling breaks, gas kicks, or good samples then you are foolish to complete a well. We have had oil shows, drilling breaks and other data that comples to spend more money, a lot more money. Please remember, you may spend $500,000 on a well to drill the hole and another $500,000 to complete the well. The University of Texas published a book called Fundamentals of Petroleum in the early 80's. I know that Amazon.com has them. This is an excellent book for someone just getting started, and its a pretty easy read. CJF