Roswell Daily Record, Roswell, Territory of New Mexico, May 3, 1907
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The item, below says that Oil is selling for $9.50 per barrel--that translates to $248 per barrel in today's money.
Oil, today April 10, 2017, is selling for $52 per barrel.
The 13.5 cent per gallon cost of gasoline is equivalent to $3.79 per gallon, today.
Iola Register, February 15, 1906
(http://i941.photobucket.com/albums/ad256/waldoegray/Longton%20Oil%20Refinery%20III%20Iola%20Register%20Feb%2015%201906_zpschblnbo1.png)
Topeka Daily Capital, January 19, 1908
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