TKENTON LIMESTONE FIELD IN OHIO AND INDIANA 



669 



ever, the yield of oil increased rapidly, so much so in fact that the Stand- 

 ard Oil Company had difficulty in storing it. To discourage further pro- 

 duction, this company reduced the price several times, until in 1887 it 

 was listed at only 15 cents per barrel. Conditions incident to the dis- 

 covery of petroleum in the Trenton limestone field of Indiana were 

 similar to those of Ohio. While the wells of the field have not equaled 



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YEARS 



Figure 1. — Production of Trenton Limestone Oil Field in Ohio and Indiana from 



1885 to 1915 



in size many of the great wells of the Far West and Southwest, one at 

 least was secured which, after flowing over the derrick top during forty- 

 eight hours, produced at the rate of 10,000 barrels per day.^ 



Gradually the producers and refiners raised their estimates of the 

 Trenton oil, and of course an advance in price and an increase in produc- 



" Geol. Survey of Ohio, 4th ser., BuH. 1, p. 62. 



