PIT WELLS. 207 



A. Productive wells. — The productive wells have never attained 

 any depth worth speaking, there are in the — 



I class, below 150 feet .... 14 wells 



II „ from 150 to 200 feet . . 4 „ 



a proportion which has not changed since. With regard to their daily 

 production, these belonged to the — 



1 class yielding less than 21 viss • . 12 wells. 



2 „ „ from 21 to 50 viss . 6 „ 



We see, therefore, that the Yenangyat wells are very poor 

 even for Burma. With regard to the relation between depth and 

 production, we observe that the wells of the first class yield 

 a total daily production of 213 viss, while those of the second class 

 produce only 76 viss. As it has been proved by the deep borings 

 that all the productive wells draw their oil from one and the same 

 petroliferous sand, no importance need be attached to the above 

 portion. 



(h) Unproductive wells.— 'The unproductive wells are all aban- 

 doned wells in all states of dilapidation ; it is stated that most of 

 them never produced oil, a statement which I fully believe. There 

 are however no wells under construction, nor is there a struggle for 

 well sites observable. In fact the Yenangyat oil field gives the im- 

 pression that the work is only casually performed, but as the oil is a 

 light one, it is very much appreciated. 



Production. — The following table will show the monthly produc- 

 tion of the pit wells in the Yenangyat oil field : — 



( 253 } 



