14. Stewart'a Run, gas at 150 lb. pressure in 2nd sand, at 150 ft. ; 3rd sand not found at 825 ft.
15. Cherry Run, coal-seam, 75 ft. above creek-bed. 16. Erie, about 27 gas-wells, at 450-1200 ft., average 600 ft. ; one well, at 585 ft., small quantity of oil at 28° B. (0.889 ap. gr.). 17. Middlesex, small well of heavy oil. 18. Little Scrub Grass, 3rd sand at 1000 ft., and penetrated 30 ft. 19. Newell's Run, one well 5 barrels, at 525 ft. ; another 10 barrels, at 236 ft. 20. Kinzua Creek, coal-bed at 600-700 ft. above the river, 4 ft. cannel, 7 ft. fire-clay, and 4 ft. bituminous coal. 21. Cherry Grove, coal-seam. 22. Bradford, a little oil and gas in a few wells in the valley. 23. Mecca, heavy oil, shallow wells, and limited yield. 24. Bully Hill, 25-ft. sand rock, one well 100 barrels. 25. Millerstown, coal at 240 ft. above the river. 26. Thorn Creek, a well that pro duced largely for a short time. 27. Brown and Co.'s well, 8 barrels, at 660 ft. 28.29. Corry, gas well, 950 ft. deep. 30. 31. 32. Wilcox, heavy oil, at 1691 ft. 33. North Rocks, conglomerate outcrop, 40-50 ft. thick. 34. Olean, let sand at 300 ft., 2nd at 450, 3rd at 780; last very thin, some oil, much gas. 35. West Hickory, heavy oil, small wells. 36. Smith's Ferry, oil 27°-33° B. sp. gr.); product of wells, 25-90 barrels a week. 37. Winter's Farm, a good sand at 600 ft., 56 ft. thick, drilled 1670 ft. without finding oil, torpedoed at 600 ft., and small yield obtained. 38. Gas-well 3 miles N.-E. of East Sandy, a good sand rock of 42 ft., much gas, no oil. 39. Gas-well half-way between Gas City and Lineville. 40. Hiram Heath farm, trace of oil. 41. The Newton gas-well, 786 ft. to 3rd sand ; gas production, 4 million cubic feet a day. 42. Octave District, sand rock 50 ft. thick, wells 890 ft. deep. 43. The Drake well, found oil in surface sand at 71 ft., subsequently drilled to 480 ft., but never afterwards produced much. 44. Walbridge Farm, sand rock 25 ft. thick ; one well 5 barrels a day of oil at 42° B. (0.819 sp. gr.), at 750 ft. 45. Johnson Farm, 8 barrels a day, at 930 ft. 46. Cowanshanuock well, no oil, much gas. 47. Fredonia, gas-well. 48. Niles, gas-wells. 49. Painesville, gas-well, 40 ft. drift clay and
gravel, 648 ft. Erie shales and soapstone, 12 ft. Huron shale, very black and bituminous, with strong smell of oil, 720 ft. total depth. 50. Rock City, fine exposure of conglomerate. 51. Blyson's Run, small show of oil. 52. Little Whitely Creek, 150 ft. deep. 53. Panama, exposure of con glomerate. 54. Howeville, gas-well. 55. White Oak, oil at 80-380 ft., 26°-28° B. (0.901-0.889 sp. gr.); the same gravity oil found in one well at 300 ft., and another at 600. 56. Sugar Creek, salt spring ; well sunk to 300 ft. struck oil, which mixed with the brine, and rendered it valueless. 57. Greco Farm, small well 700 ft. deep. 58. 59. 60. Sage Run, hill wells 800-1000 ft. deep, sand rock 60 ft. thick. 61. Dunkard's Creek wells. 62. Panama, at 550 ft., 6 ft. in 2nd sand ; surface sand 75 ft. thick, at 344 ft.; let sand 30 ft., at 461 ft. 63. Jamison Farm, sand 13 ft. thick, well 240 ft. deep, small yield of oil of 48° B. sp. gr.); well drilled to 550 ft., but no more sand found. 64. 65. Kinzua Creek, 5 or 6 wells.
While the precise location of the horizon at which the Pennsylvanian oil is found can only be determined by an examination of its entire area, a few deductions from such prominent facts as are not likely to be seriously affected by future work will be of value in conveying some idea of the nature of the search required. It is particularly desirable to obtain an accurate impression of the relative size and location upon the surface of such areas as outline the oil-bearing rocks below. It will be observed that these spots are isolated and disconnected, and, with the exception of the stretch of the great Lower oil-fields, do not comprise any continuous belt. To present this more clearly, it may be stated that, out of 3115 sq. miles of land in Pennsylvania, embracing everything which, by general acceptance, can be denominated as the oil-region, only 39i sq. miles have actually produced oil ; that is to say, all the territory that now is or has been producing could be contained in an area of 25,000 acres.