206 NEW YORK STATE MUSEUM '•;, 



Richards well, lot 20, Greenwood, Steuben county. 



Drive pipe 60 feet 



Casing 260 



Gas sand (24 feet) at 746 



Gray sand and shale to 777 .5 



Bottom 814 



Updike well, near county line. 



Drive pipe 40 feet 



Casing 330 



Oil sand with gas at 627 



Bottom of sand at 654 



Bottom ; 688 



The southwestern extension of the Andover pool is designated 

 sometimes as the Fulmer Valley pool. 



The Alma pool lies close to the state line about midway between 

 the eastern and western limits of the townships. The wells are 

 from 800 to 1500 feet deep. The pool lies along a northeast-south- 

 west axis within sandstone 10 to 20 feet thick. A condensed record 

 of one of the wells follows: 



Surface materials 1 00 feet 



Sandstone and shale 210 



Sandstone with water 218 



Sandstone and shale 975 



Sandstone with oil and water 995 



Shale I 109 



Top of oil sand I 126 



Harder gray sandstone i 143 



Bottom of oil sand i 153 



Gray shale i 177 



The Waugh and Porter pool covers a small area to the west of 

 the Akna pool, in the town of Bolivar. It was opened in 1882. 

 The wells tap the " Richburg " and " Waugh and Porter " sands 

 which are separated by shale. The wells have a depth of from 

 1350 to 1700 feet. 



The Bolivar, Richburg and Wirt pools form a contiguous and 

 coalescent group, the oldest and largest section of the Allegany 

 county district. They underhe parts of Alma, Scio, Bolivar, Wirt, 

 Genesee and Clarksville townships. The earliest wells were put 

 down in 18S2, at Richburg about in the center of the district. The 

 " Richburg " sand is here from 25 to 50 feet thick and lies 1400 

 to 1800 feet deep. A sample record of a well near Richburg follows. 



Well No. 2, lot 33, Bolivar. 



Gas sand (20 feet) at i 341 feet 



Oil sand at I 383 . 5 



Bottom oil sand at I 408 .5 



Bottom of well i 419 



