HAYES AND 
KENNEDY. 
SPINDLETOP POOL. 
73 
The section A — A crosses the eastern side of the hill, its direction being 
N. 48° W. , coinciding very nearly with the southwestern boundary of 
the Hogg-Swayne tract. Along this line the arching of the strata is 
not very striking, although there is considerable ascent from the 
Guffey No. 9 to the National No. 1, and then a slight descent to the 
Geyser-Kaltenbach, which is the last well in this part of the pool from 
HORIZONTAL , 
9 5* 
Jrregu) ar, alternating • beefs of clay, sand.an d 
day 
and 
sand with th/n , ?eds 
Oil rock 1 forous 
"'At?, 
' S/L e>n e 
sw. O 
Jrre i *u/ar, alternating » 6 eds of cla v, s md, a, ?d grave/ 
Is 
■Si! 
•8* 
5 s> 
Sa/t P 
Fig. 2.— Sections of Spindletop oil pool. (See map, PI. III.) 
which a record was obtained. Continuing the line about 2,000 feet 
beyond the Geyser-Kaltenbach, the Chicago Crude well is reached. 
This is a dry hole, and to a depth of 2,100 feet encountered nothing 
which could be identified as the oil-bearing bed of the Spindletop 
pool. It is evident, therefore, that the oil rock either dips very 
rapidly toward the north between these two wells or does not retain 
its peculiar characteristics beyond the limits of the productive terri- 
