# Relationship history for MSHA mine 3609489

Current hierarchy: **Derek M Sleppy → PENN RUN QUARRY, LLC → SPRUCE MINE**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **controller_controls_mine:** Andy G Cramer et al → SPRUCE MINE; 1999-06-01 to 2016-08-15; source msha-controller-operator-history
- **operator_operates_mine:** Penn Run Quarry #2 Spruce Mine → SPRUCE MINE; 2007-02-08 to 2026-07-09; source msha-controller-operator-history
- **controller_controls_operator:** Andy G Cramer et al → Penn Run Quarry #2 Spruce Mine; 2007-02-08 to 2016-08-15; source msha-controller-operator-history
- **controller_controls_operator:** Howard R Cramer et al → Penn Run Quarry #2 Spruce Mine; 2007-02-08 to 2016-08-15; source msha-controller-operator-history
- **controller_controls_mine:** Melissa G  Cramer et al → SPRUCE MINE; 2016-08-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Melissa G  Cramer et al → Penn Run Quarry #2 Spruce Mine; 2016-08-16 to 2026-07-09; source msha-controller-operator-history
- **controller_controls_operator:** Andy G  Cramer et al → Penn Run Quarry #2 Spruce Mine; 2016-08-16 to 2026-07-09; source msha-controller-operator-history
- **operator_operates_mine:** Penn Run Quarry, LLC → SPRUCE MINE; 2026-07-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Derek M Sleppy → SPRUCE MINE; 2026-07-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Derek M Sleppy → Penn Run Quarry, LLC; 2026-07-10 to current/open; source msha-controller-operator-history