646 M. L. FULLER APPALACHIAN OIL FIELD 



Area of Appalachian Oil and Oas Pools 



Oil Gas 



New York 300 540 



Pennsylvania 2,000 2,730 



West Virginia 570 1,000 



Southeastern Ohio 115 110 



Kentucky 400 290 



Tennessee 69 .... 



Alabama 50 40 



2,504 2« 4,710 



WELLS 



In the following are given certain well statistics which throw light on 

 the present activity of operations : 



Well Statistics in Appalachian Field for 1914 



Wells drilled 6,849 



Wells obtaining oil 4,272 (63 per cent of total drilled) 



Wells obtaining gas 1,320 ( 19 per cent of total drilled ) 



Dry holes 1,257 (18 per cent of total drilled) 



Wells abandoned 2,200 (2 per cent of existing wells) 



Total existing wells 105,000 



Average yield per day for new wells 10l^ barrels 



Average yield per day for all wells 6/10 barrel 



The mimber of wells drilled in 1914 (6,849) appears on the face to 

 compare favorably with the 8,000 to 9,000 drilled in the years of great 

 activity about 1900 ; but, as a matter of fact, many of the new wells cred- 

 ited to 1914 were old wells redrilled. To the same fact is possibly due 

 in part the fairly small number of dry holes, the proportion of which 

 amounted to 25 per cent in the period of active development from 1891. 

 to 1900. In fact, in the Pennsylvania district, where the drilling was 

 limited largely to the deepening of old welis or to marginal extensions of 

 the existing pools, the proportion of dry holes was only 12 per cent. 



PRODUCTION STATISTICS 



Commercial production began with the opening of the Drake well in 

 1859, the yield for that year being about 2,000 barrels. The following 

 year the output jumped to 500,000 barrels, and the third year to 2,113,- 

 609 barrels, after which it rose slowly, with an occasional setback, to 

 30,221,261 barrels in 1882, then, after a decline to 16,941,397 in 1888. 



20 Considerable potential oil territory is probably included with that actually produc- 

 ing, especially in Kentucky, Tennessee, and Alabama. 



