The Appalachian fields and the rise of the Pure Oil Company
As the year 1884 came to a close, producers in the Pennsylvania Oil Regions could look back on nearly a quarter-century of uninterrupted development. To be sure, there had been periodic upsets and innumerable crises, but in general drilling had pushed forward with unending vigor. From the early beginnings around Oil Creek, petroleum territory now covered the northwestern corner of Pennsylvania and was already being extended further southwest. Soon production would spread over the entire western half of the state, from McKean County in the northwest-central section to Greene County in the extreme southwest tip of the state bordering West Virginia on the west and south.
By 1884, output of crude production had already been recorded in states beyond Pennsylvania, including Ohio and West Virginia, which