I36 NOETLING: PETROLEUM IN BURMA. 



no oil, but at the same time it must be mentioned that as proved by the 

 deep wells the petroliferous zone has a breadth of not less than 2,200 

 feet, chiefly on the western side of the anticlinal, and that so far no- 

 thing has shown that its western limit has been touched by well No. 6. 

 Section 4.— Future prospects of the Yenangyat oilfield. 



Unfortunately we are not in so good a position for defining the 

 boundaries of this oil field, as we were in the Yenangyoung area, 

 but still certain conclusions may be drawn, partly based on actual 

 observations and partly on inference from other localities. 



For the present it is impossible to define the horizontal extent of 

 this field, because the number of deep borings is small, and. those 

 which exist are situated along an almost straight line, running east to 

 west in the Yanaung-ravine. These borings have proved, as might 

 have been anticipated from the structure of the beds, that the eastern 

 boundary of the oilfield coincides with the central axis of the anticlinal ; 

 from this point the petroliferous sand extends for at least half a mile, 

 and probably more, in westerly direction. 



Much less certain are we with regard to the extent of the oil field 

 in a north and south direction, but, if I am right in my conclusions, the 

 field is very limited along this line. It seems that no oil has 

 been found immediately south of the place where the productive wells 

 are situated, and it is almost certain that the wells dug by the natives 

 in the Yawa and Ok-Khyoung ravine hardly produced any oil at all ; 

 of course the experience gained by these shallow wells does not prove 

 much, but as we know that the Yenangyoung oilfield is very limited 

 in either direction it is only just to infer that the same holds good 

 for the Yenangyat oilfield. In this case the area of the Yenangyat 

 oilfield would hardly exceed one mile in length, and if we were to 

 suppose that well No. 6 has almost reached the western boundary, 

 the total area of the Yenangyat oilfield would barely exceed half a 

 square mile. 



As regards the vertical extent of the oilfield we are even less able 

 to say anything certain about it ; but we may assert with safety that 

 if no richer sands are found in greater depth the prospects of the 

 ( 18a ) 



