160 ANNUAL REPORT 
The wells are drilled dry, i. e. the water is excluded by casing which 
extends through the Salt sand. The territory has not been completely 
drilled over, but is approaching that state, and the number of wells is said 
to be as great as when the territory was drilled the first time. As might be 
surmised, the wells are smaller than those drilled in the eighties. The 
great body started at from 4 to 50 barrels, while formerly their initial pro- 
duction ranged from 10 to 400. The first drilling exhausted the gas, so 
that while the wells then flowed, they now have to be pumped. 
This field is cited by those who believe that oil is now being produced 
in the earth’s interior as corroborating that view. As a matter of fact it 
proves no such thing. The oil now being secured in the Berea was there 
when the territory was drilled the first time. The re-drilling is 
merely a result of the unfortunate methods in vogue a decade ago, and it 
is safe to say that when the existing Berea wells cease to produce, the life 
of the field will end. 
Geology of the Field.— The surface rocks lie principally in the 
Monongahela formation or the Upper Productive Coal Measures. The 
Pittsburg coal, which here is little more than a black streak, is shown 
in nearly every hill. The limestone overlying it is more conspicuous. 
The Meigs Creek or as it is locally known the Macksburg coal, however, 
which lies about 80 feet above the seam previously named is important. 
It supplies the surrouning country with fuel, and was formerly mined 
at Macksburg for railroad shipment. Topographically considered the 
country is one of the most rugged parts of the state. The succession 
underground is shown by the following well records: 
Dunn well No. 6, northeast quarter section 12, Jackson township, 
Noble county. Completed March, 1891. Log furnished Survey by Orton 
Dunn. Surface of the well six feet below the Meigs Creek coal. 
Thickness of Total 
stratum. thickness. 
Feet. Feet. 
UMNPECONd CAR aw he ey cxceeeen aie ke Rpeceaae 285 285 
VAUIVESTALUNUCSICON Cimerrnee eesicotere tency ce ten eter nacre 1 286 
UMreconded eer ney ee Rha, Aolmaaredaiete ys 99 385 
MAO 2A COUSS AIUD Ais Ga ein cteue hedebatet te oeeesrene 5 390 
COB eAh OO eke bie tale eno ezers 1 391 
ROGET OCK yee corte ebnetea so sccpe rete RNCIeES 20 411 
Cambridge limestone (Rucker lime)... 4 415 
ST APO riser epee ae sarcorstieciseper outed stan eneieue betsy ets 39 454 
Limestone (case through)............. 8 460 
Pale“ Green Slater ii erec ce cisiver st elereusnenonets 35 495 
Black “slates ci weos viescele sacha eaereccs 35 530 
IBY OL SUV MOPAST INCH O S CAGAOO BO AD Ob OD OOOO 95 625 
( OLot: y aceat een NENA rte en emma LN ry AACR inv 4 629 
