Cartolina Oklahoma più profonda pozzo petrolifero Elk City Cars OK

The card's back provides details, stating, "Oklahoma's Deepest Oil Well, Elk City, Oklahoma. Located about 5 miles south of Elk City, it is Oklahoma's deepest and the world's second deepest well.". Located about 5 miles south of Elk City, it is Oklahoma's deepest and the world's second deepest well.

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