206 - ANNUAL REPORT 
Feet. 
iBottomvor Maxtonsam dey ii sie ccntcenrciieetecnelcihen mercer: 1,060 
Top Of) SBI TIMES Eis ete ee krcasecage ensue rekeceley se sare oo men ee enine 1,090 
Toprol Keen eriSam die rsa esis neers cckeecud eins tomeaensroaceare 1,150 
GASH G re Re Oh rah ce ta eee lala tment cE TM Fret OME Can TSS NS 
Oa a Be ee eens Me Une naa? SOO ia SAE Laan a ee 1,160 
Top! Of) Bisel eM pe eter, clea wwaka Nara AA ea ee 1,198 
Total: Ce pec eos eee eke eve eT Ea eee oats 1,224 
The sand named “Cow Run” is not an important producer. Wells 
in it have been secured on the Willison, Daugherty and Turney farms, 
one having started at 25 barrels per day. The sand, however, cannot be 
the equivalent of the one having the same name found in Washington and 
Mcrgan counties. At Joy, in the latter county, the interval between the 
Cow Run and Salt sands is 470 feet, while in the above section it is 45 
feet only. The sand in question might be the Second Cow Run, but it can- 
not be identified with certainty owing to the absence of any well-marked 
datum plane, such as a bed of limestone or seam of coal. With the driller 
the Cow Run sand is almost any one lying above the Salt sand. 
The Maxton, which is the oil sand in the western arm of the field, has 
a thickness ranging from 8 to too feet. It is moderately fine, and is shot 
with from 30 to 80 quarts of nitro-glycerine. The formation is separated 
from the underlying Mountain limestone by a foot or more of slate. This 
limestone has a thickness which ordinarily ranges from 60 to 8o feet, is 
sometimes very hard and at other times soft. The Keener, which is the 
principal producing sand in that part of the field running north and south, 
has a thickness ranging usually from 28 to 35 feet. Its structure is sim- 
ilar to that of Graysville and Jackson Ridge. It is separated from the 
“Big lime” by from 6 to Io feet of slate. Neither oil nor gas has been 
found in paying quantities in the Big Injun, and no records of its depth 
were secured. 
Oil and Gas,—In that part of the field running north and south there 
is a well-defined oil and gas belt, the latter lying west of the former, a 
condition which doutbless results from the oil sand rising westward. The 
closed pressure in the gas wells was at first 150 pounds, but one year later 
had dropped to 60 pounds. The gas has been used for drilling and pump- 
ing in this field and Jackson Ridge. The largest oil well started at from 
140 to 150 barrels in 24 hours, but the average has been, of course, much 
less than this. In July, 1901, the average daily production was g barrels 
per well. The oil has a gravity of 46 deg. B. 
The oil wells in the western arm of the pool are comparable in size to 
those just mentioned, and the oil has the same gravity. The wells produce 
considerable gas, with but little salt-water. The distinctly gas wells in 
this arm of the field are reported in the bottom of the Keener or top of the 
Big Injun proper. At first these had a closed pressure of 250 pounds per 
square inch, but this had dropped to 110 pounds in July, t901. The gas 
