MINERAL RESOURCES OF THE STATE OF NEW YORK 205 



following: Columbia Pipe Line Co., Union Pipe Line Co., Fords 

 Brook Pipe Line Co., Buena Vista Oil Co., and Madison Pipe Line 

 Co. of Wellsville; Vacuum Oil Co., Rochester; New York Transit 

 Co., Olean; Emery Pipe Line, Allegany Pipe Line Co., Tide Water 

 Pipe Co., Limited, and Kendall Refining Co., of Bradford, Pa. 

 There are refineries at Wellsville and Olean. 



Geological occurrence. The oil is found in fine-grained, dark- 

 colored sandstones which have been assigned generally to the 

 Chemung formation of the Upper Devonian. The Chemung in this 

 section is partly mantled by conglomerates and sandstones of the 

 Carboniferous, the only representative of the coal-bearing series to 

 occur in the State. The precise horizons of the oil can not be 

 definitely stated and their determination will require very detailed 

 field work which hitherto has not been practicable on account of 

 the lack of accurate field maps. 



The main oil sand in Cattaraugus county is called " Bradford " 

 from the Bradford, Pa., district, which is just across the state line. 

 In Allegany county the main horizon is recognized as the " Rich- 

 burg." In the southeastern part of that county and extending 

 over into Steuben county is the Andover field with two producing 

 sands, the upper called the " Penney " and the lower called the 

 " Fulmer Valley " sand. In the Bolivar or Richburg pool in the 

 southwestern section the main " Richburg " sand is succeeded 80 

 feet below by the " Waugh and Porter " sand. In the small Scio 

 field which lies about midway of the county and north of the others 

 there are two sands 280 feet apart, the uppermost being called the 

 " Richburg " and the lower the " Waugh and Porter." 



The depth to the sands varies from 800 feet in the valley wells 

 to 2000 feet or more in the borings made on the high ground. The 

 following details of the different pools are taken mainly from the 

 articles by I. P. Bishop^ and D. A. Van Ingen^ in the reports of the 

 New York State Museum. 



Allegany county pools. The Andover pool lies mainly in the 

 town of Andover, but extends over the line into the town of Green- 

 wood, Steuben county. The original wells were drilled for gas 

 and the first ones were put down in 1889. Their depth ranges from 

 700 to 1300 feet, depending on the surface configuration. There 

 is a considerable flow of gas, more than sufficient to supply power 

 for pimiping. Some sample well records are here given. 



^ N. Y. State Mus. Ann. Rep't 51, v, 2, 1897 and 53, v. i, 1899. 

 2 N. Y. State Mus. Bui. 15, 1895. 



