MINERAL RESOURCES OF THE STATE OF NEW YORK 207 



The Clarksville and Niles pools lie to the west and north of the 

 preceding and occupy a narrow belt with a northeast-southwest 

 axis. The Clarksville is the larger, extending about five miles in 

 the towns of Clarksville and Wirt. The Niles is just to the north- 

 east in the town of Wirt, and about a mile long. The two are 

 separated by a dry belt of one-half of a mile. Most of the wells 

 are from looo to 1500 feet deep. 



Nile well. 



Blue shale 400 feet 



'XATiite sand (first sand?) at 630 



Soft blue rock at 880 



Second sand (dark) 900 



Blue shale 910 



Slate with oil sand (3-8 feet) i 200 



Dark shale i 600 



The Scio pool near the village of Scio, is a small pool lying in an 

 isolated portion and apparently independent of the others. The 

 sand is shallow, 450 to 900 feet from the surface, and the oil of light 

 gravity. There is a very little gas in this pool. 



In northern Allegany county is the Short Tract or Granger pool, 

 in the town of Granger near the Livingston county line. It was 

 the scene of active exploration in 1906-8 when about thirty wells 

 were put down which, however, did not prove profitable. The pool 

 has since been abandoned. Oil was reported in a well drilled near 

 Swain in the town of Grove at a depth of 740 feet. The deep well 

 at Canaseraga in the town of Bums, mentioned under the head of 

 natural gas, found a little oil at 275 feet in gray sand and again at 

 875 feet in chocolate sand. 



Cattaraugus county. The oil district includes^ a small area in 

 the southern townships mainly in Olean, Allegany, CarroUton and 

 Red House. A few successful wells have been opened also in the 

 town of Htunphrey in the second tier above the Pennsylvania line. 

 As in Allegany county there are a number of individual pools whose 

 boundaries have now been well defined by exploration. The largest 

 of these lies directly on the boundary and is an immediate extension 

 of the Bradford district so that it may be designated as such. The 

 pool is about 10 miles long east and west and 2^ miles wide as a 

 maximum, with a total area of about 15 square miles. The eastern- 

 most part in the town of Olean is sometimes referred to as the 

 Haymaker pool, as it is set off from the rest by a narrow strip of 

 dry ground. The Allegany pool is farther north in the town of 

 Allegany and west of Olean. It is intersected by the Allegany river 



