330 JSIew Yoek at the World's Columbian Exposition. 



Eicliburgh and Wirt; 5. Waugh and Porter; 6. Olarksville and 

 Kiles. 



1. Andover. — This is situated in Greenwood, Steuben county, 

 and Andover, Allegany county. It was originally drilled for gas 

 to supply the neighboring towns, and all drilling has been done by 

 the Mutual Gas Company of Andover. In all, fifteen wells have been 

 finished since the field was opened in 1889. In depth the wells run 

 from 800 feet in the valley to 1,300 feet on the hills, with oil sand 

 from 15 to 95 feet thick. The field gives a good yield of both 

 gas and oil, the rock pressure being 350 feet on the average and 

 a yield of one to eight barrels of oil per well per day. At present all 

 the wells but three are shut in, as this number is sufficient to furnish 

 the gas needed. 



2. Alma P 0. — This really belongs to the Alma pool, but as there 

 is a dry streak between them it has been treated by itself. It is very 

 small, covering only five lots in the southwest corner of the town of 

 Alma. The wells are few and run from 800 to 1,500 feet deep, with 

 only 10 to 20 feet of oil sand. The yield of oil and gas is very small. 



3. Alma. — This pool is a long narrow strip running northeast and 

 southwest and covering about thirty lots in the town of Alma. There 

 are about 250 producing wells, yielding about 125 barrels of oil daily. 

 In depth they run from 1,100 to 1,200 feet, with 15 to 20 feet of pro- 

 ducing oil sand. The southwest edge is good gas territory. 



4. Boliva/r, Richhurgh and Wirt — This is the oldest and largest 

 part of the Allegany field. It is situated in the towns of Alma, Scio, 

 Bolivar, Wirt, Genesee and Clarksville. The first wells drilled were 

 at Kichburgh, in about the center of the field. The wells are deep, 

 ranging from 1,400 to 1,800 feet. The Eichburgh sand is from 25 to 

 50 feet thick. The yield now is only a Httle more than a half barrel a 

 day, but at first ran as high as 100 barrels a day per well. 



5. Waugh and Porter. — This pool covers seven lots lying in the 

 southern part of the town of Bolivar. It was opened in 1882, and it 

 was here that the fourth or Waugh and Porter sand was discovered. 

 There are in all thirty-six wells, yielding about forty barrels of oil 

 daily. In depth they run from 1,350 to 1,700 feet. The oil sands, 

 the Eichburgh and Waugh and Porter, are 25 and 28 feet thick respec- 

 tively, separated by some 100 feet of shale and slate. At the outset 

 the yield was about ten barrels a day. 



6._ Clarksville and Niles. — These two pools are only about one-half 

 a mile apart and can almost be considered as one in spite of the dry 

 streak between. The former covers fifteen lots in the towns of Clarks- 

 ville and Wirt, and the latter six in the northern part of Wirt. Clarks- 

 ville was first drilled in 1883, and has about 250 producing wells, while 

 Niles dates one year earlier with about 140 wells. The wells are from 

 1,000 to 1,500 feet deep, and yielded when first shot from five to 

 twenty-five barrels a day, but are now only doing about half a baii-el. 

 The oil sand is thicker in Clarksville than in Niles, bem^ five to sixty 

 feet as compared to two to five feet. The gas pressure>"is light except 

 on the northern edge, where it has been recorded as higli as 400 pounds 

 to the square inch. 



