| Year | Operation Name | Number | Type | Opening | District | City | County | Company Name | Railroad Shipments (tons) | Railroad to Mine | Truck Shipments (tons) | Total Production (tons) | Days Worked | Employees | Notes |
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| 1940 | Kozak | | Mine | | 12 | | Luzerne | Frank Kozak | 272 | | 0 | 272 | 127 | 6 | Run of mine coal prepared at Black Diamond Colliery, 10th District. |
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