| 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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| 1922 | Plymouth | | Washery | | 12 | Plymouth 1 | Luzerne | Cullen Fuel Co, Ltd. | 26,195 | CNJ / DL&W | 0 | 26,745 | 118 | 36 | | | 1923 | Plymouth | | Washery | | 12 | Plymouth 1 | Luzerne | Cullen Fuel Co, Ltd. | 40,289 | CNJ / DL&W | 0 | 40,544 | 196 | 42 | | | 1929 | Cullen | | Washery | | 12 | | Luzerne | Cullen Fuel Co., Inc. | 2,083 | | 0 | 2,183 | 47 | 20 | |
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