| 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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| 1947 | Gravity | | Bank | | 6 | Dupont 2 | Luzerne | Gravity Coal Co. | 55,252 | | 0 | 55,252 | 79 | 11 | Coal prepared at Gravity Breaker. | | 1950 | Gravity | | Bank | | 6 | Dupont 2 | Luzerne | Gravity Coal Co. | 30,600 | | 0 | 30,600 | 113 | 5 | Coal prepared at G&M Breaker. |
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