Summary

The Ohio naturalist, Vol. 1, No… (1900)

The operators of the wells have been much troubled with salt water in the Muddy Fork field and with oil in the Oakfield territory. Salt water is removed by “blowing” the wells. For this operation the wells are closed for a short period, usually about 30 minutes, allowing the gas pressure to increase; when this has become sufficiently strong the well is opened at the top and the gas then blows the water from the well. When the well has been cleansed in this manner it is closed and the gas turned back into the mains.
Source: Gutenberg

The Ohio naturalist, Vol. 1, No… (1900)

To this day it flows salt water, and with it sufficient gas to be ignited. This well, however, seems not to have aroused suspicion that there might be valuable liquids other than salt water buried in the rocks.
The discovery of oil in the Corning field was a matter of accident, and resulted directly from a scarcity of water for the Toledo and Ohio Central railroad. To remedy this a deep well was drilled in August, 1891, at the round-house, about three-fourths of a mile south of Corning. The only water found was in the salt sand which is reported as having been struck at a depth of 630 feet.
Source: Gutenberg

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