vni, a, 5 Pratt and Smith: Petroleum Resources 373 



Drilling exploration is recommended and should be conducted 

 along lines which have been indicated. Wells should be so located 

 as to explore the Bacau stage of the Vigo shale thoroughly under 

 favorable conditions of structure. The possible sources of pe- 

 troleum outside the Bacau stage likewise warrant exploration. 

 Areas considered favorable for prospecting by test wells have 

 been outlined. 



The quantity of petroleum which might be recovered com- 

 mercially from this field is undetermined. Certain geologic fea- 

 tures which have been pointed out lead to the belief that only 

 wells of small individual productions will be obtained; but it is 

 also probable that wells of this character could be closely spaced 

 without mutual interference and that the territory within which 

 they could be located is large. A sufficient number of these wells, 

 drilled in groups so as to be operated from local centers, might 

 reasonably be expected to yield an aggregate quantity of limited 

 commercial proportions. There is a possibility, conditioned 

 largely upon the presence of oil at a horizon other than the 

 Bacau stage of the Vigo shale, of obtaining wells of larger 

 individual flow and a greater total production of petroleum. 



