You could know definitively if hydrocarbons were at the target
The System was inexpensive and simple to deploy
Land owners could know if there is oil, gas and water on their land before they lease their land or after they have leased it. Why have your land torn up during drilling just for leasing money and a dry hole or poor producing well as a result.
Oil and Gas developers could know if there are producible reservoirs before they shell out lease money.
Drilling Companies could know what they can expect to encounter below before they start drilling.
2D and 3D surveys are worthless when it comes to wheather or not oil and gas are actually present in a subsurface trapping mechanism costing many thousands of dollars.
Investors could know that their money is going to yield a return and that their investment risk is virtually eliminated.