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Contractor Employment and Production - Yearly

Published by Mine Safety and Health Administration | Department of Labor | Metadata Last Checked: January 21, 2026 | Last Modified: 2025-12-15T16:28:58.388Z
Contains the annual summation of employee hours and coal production reported by contractors where the average quarterly employment is greater than zero with grouping by calendar year, subunit code and mine ID . The subunit code identifies the location or operation of the mine relating to the: (01) Underground; (02) Surface at underground; (03) Strip, quarry, open pit; (04) Auger; (05) Culm bank/refuse pile; (06) Dredge; (12) Other mining; (17) Independent shops or yards; (30) Mill operation/preparation plant; (99) Office workers at mine site.

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