| 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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| 1939 | Stampton | | Mine | | 2 | | Lackawanna | Stampton Coal Co. | 92 | | 700 | 792 | 119 | 7 | | | 1940 | Stampton | | Mine | | 2 | | Lackawanna | Stampton Coal Co. | 1,254 | | 1,323 | 2,577 | 249 | 6 | Coal prepared at B. & L. Breaker, 1st District. | | 1941 | Stampton | | Mine | | 2 | | Lackawanna | Stampton Coal Co. | 429 | | 642 | 1,071 | 202 | 6 | |
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