Casper, WY Union Tank Line Fire, Jun 1919
The Union Tank Line company's shops on the Midwest Refining company's property about half a mile west from Casper were destroyed by fire at noon on June 18, 1919. The shops were entirely destroyed in about fifteen minutes after the fire was discovered. The loss was estimated at about $60,000.
History of Natrona County, Wyoming, 1888-1922 by Alfred James Mokler, 1923