ragtown
n.— «Ragtown. Tent town in an oil field.» —“Additional Trade Jargon—Petroleum Industry” in Texas Lexicon of Trade Jargon Feb. 14, 1938. (source: Double-Tongued Dictionary)
Further reading
While reading Great Expectations (Bookshop|Amazon) by Charles Dickens, a listener in Arlington, Texas, is surprised when one of the characters inherits some money, which Dickens describes as a cool four thousand. Were they really using cool that way...