| 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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| 1938 | Jennings | | Mine | | 1 | | Susquehanna | B. M. Jennings | 5,478 | | 1,552 | 7,030 | 85 | 42 | | | 1939 | Jennings | | Mine | | 1 | | Susquehanna | B. M. Jennings Coal Co. | 4,742 | | 4,936 | 9,678 | 106 | 29 | |
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