166 University Geological Survey of Kansas. 
have been drilled entirely through these shales without en- 
countering any sandstone at all. This was notably so in a 
well drilled a short distance east of Moran, where the drill 
passed entirely through the Cherokee shales and into the top 
of the Mississippian limestone without meeting any sandstone 
whatever, although only a few miles to the west lies the won- 
derful Iola gas-field, which obtains all its gas from thick, 
heavy sandstone beds. 
Quite as likely one will find a sandrock thickening to an un- 
usual thickness. This latter condition is well illustrated in 
the strong gas-field lying to the north of Cherryvale and east 
of Neodesha, in the southeast corner of Wilson county. Some 
of the wells here found the sandstone approximately 100 feet 
in thickness, with correspondingly large volumes of gas, but 
less than five miles in any direction the sand was no more than 
the ordinary. 
In order to give a few detailed examples of comparatively 
rapid sand variations, two areas are chosen, one a few miles 
southeast of Humboldt, where the Oread Oil Company and the 
Kansas Crude Oil Company, later changed to the Reynolds 
Oil Company, did some drilling. 
Kansas Crude Nol Oread Nol Oread No 2 Oread No$ 
HKarsas Crude/ Oread / Oread 3 
O— bo O — 5g5 — 0 
OQ * 
3° | 300 
IeEcrh/ion /ine 
c 
. 
798 feys) 
25a] Ges 
13 f= =heze 1S ov 
‘Oi 
ee 
SECTION 27 s| SECTION 26 
l 
i 
0 Oresd § 
Irc. 3. Showing positions and vertical sections of wells belonging to the Kansas 
Crude Oil Company and the Oread Oil Company, southeast of Humboldt. 
In figure 3 the relative positions of certain wells are shown 
in the left-hand part and a portion of the record of each is 
shown drawn to scale in the right-hand part of the figure. The 
wells are in sections 26 and 27, township 26 south, range 18 
east, about four miles southeast of Humboldt. The surface for 
