i86 



NOETLING: PETROLEUM IN BURMA. 



The following table will show the number of each class of wells 

 as recorded in the years stated :— 



Class. 



Daily Production. 



1888. 



1891. 



1893. 



I. if. % 



1895. 



I 



2 



3 

 4 



5 

 6 



Wells yielding less than 20 viss • . 

 „ „ from 21 to 50 viss • • 

 „ ,i „ 51 to 100 viss • 

 „ „ 1, 101 to 150 viss . 

 „ u » I5 1 to 200 viss . 

 „ „ more than 300 viss . 



128 



54 

 52 

 27 



17 

 3 



166 



94 

 76 

 24 

 17 



142 



no 



85 



33 



31 



5 



192 

 I40 

 103 



54 



28 



2 





Total 



281 



377 



406 



519 



{a) Wells of the 1st class. — From tlie above figures it will be 

 seen that in every year in which the observations were taken those 

 wells which yielded 20 viss and less per diem are far in the 

 majority. The percentage of the total number was in 



1888 45 7o 



1891 • • • • • • . • • • •44/o 



i%3 34 7. 



1895 377o 



It cannot be considered as a very promising sign that the poor 

 wells form such a large part of the total number, which amounted to 

 nearly one half in 1888 and has never been less than one-third. The 

 percentage seems to be steadily on the decrease up to 1893, but since 

 then an increase has again been noted. 



(b) Wells of the 2nd and 3rd class. — A steady increase is re- 

 corded in wells of the 2nd class, inasmuch as they have increased 

 in number from 54 in 1888 to 140 in 1895; it will, however, also 

 be noted that the chief increase took place from 1888 to 1893 when 

 their number more than doubled. The same applies to the wells of 

 the 3rd class showing also an increase of nearly 100% in 1895 

 ( 232 ) 



