STATE GEOLOGIST. 131 
was completed, however, H. H. Burns had drilled on the Russell farm, 
on the north bank of the creek, securing a well having an initial produc- 
tion estimated at 190 barrels daily. Naturally, Lane & Vanlaw, whose 
lease extended to the creek, and included land just opposite from Burns’, 
located their next well directly on the bank. The First Cow Run sand 
was struck at a depth of 287 feet, and the well began to flow at once. At 
this stage the drill was stopped until more tanks could be secured; they 
then continued drilling, until the sand, having a thickness of 13 feet, had 
been passed through. The-output of the well increased greatly, having a 
production of 1,200 barrels the first day, according to the estimate of Mr. 
Vanlaw, one of the operators. Others, however, have estimated the pro- 
duction as low as 400 barrels. Wells were at once started on both banks, 
and in every case a good producer was secured, though they were much 
smaller than the one just described. In July, 1900, 12 drills were at 
work along the creek in the immediate vicinity of the Vanlaw farm. 
About one mile southeast of the last tract another productive strip 
was discovered in June, 1899. The central part of this was occupied by 
the Zumbro farms. It was situated principally on hilly territory, a short 
distance from the creek, though the latter runs directly across the eastern 
end of the belt. This field, too, was very active in 1900, the principal 
extension being east of Wolf creek near the place where it is joined by 
Coal run. 
In March, 1900, a producing well was drilled on the Yarnell farm, 
near Brown’s Mills. Two additional wells were drilled in quick succes- 
sion. On the 6th of June well No. 4 was completed and began producing 
1,400 barrels per day. In all 16 producers and 5 dry holes have been 
drilled on the farm. In May, 1900, the production was 20,000 barrels; in 
July, 1901, 2,904 barrels; in July, 1902, 1,965 barrels. Naturally, the drill 
moved out in all directions from this farm, and the limits of the territory 
were soon determined in all directions except the southeast. 
It is seen from what has been said that work in the Chester Hill field 
began at several points at about the same time. Later work has con- 
nected these pools, forming a continuous strip from Federal to a point 3 
miles southeast of Brown’s Mills. Between the latter and Moore’s Junc- 
tion several small pools have been found, and not improbably these will 
be connected, forming a continuous strip to the Ohio river. 
In the southwestern corner of Windsor township, Morgan county, 
a small pool of oil was discovered in 1901. It starts near Dale P. O. and 
runs northwest in a discontinuous manner for nearly two miles, and then 
due north for another mile. The strip is very narrow, sometimes con- 
taining one row only of wells. The producing sand lies just above the 
Cambridge limestone and so is the First Cow Run. It is decidedly patchy, 
and appears to be restricted to the producing territory. The best wells 
started at about 40 barrels and the average at perhaps one-half that 
