# Relationship history for MSHA mine 3606602

Current hierarchy: **Joseph  Kleeman → Shenandoah Mining Co. → Packer Stripping**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Pagnotti Enterprises Inc → Packer Stripping; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Herman Q  Wright et al → Packer Stripping; 1977-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Wright Contracting Company → Packer Stripping; 1978-02-01 to 1980-01-17; source msha-controller-operator-history
- **controller_controls_operator:** Herman Q  Wright et al → Wright Contracting Company; 1978-02-01 to 1980-01-17; source msha-controller-operator-history
- **controller_controls_operator:** John P  Dixon et al → Wright Contracting Company; 1978-02-01 to 1980-01-17; source msha-controller-operator-history
- **operator_operates_mine:** Cracker Coal Corp → Packer Stripping; 1980-01-18 to 1984-08-23; source msha-controller-operator-history
- **controller_controls_mine:** John P  Dixon → Packer Stripping; 1980-01-18 to 1984-08-23; source msha-controller-operator-history
- **controller_controls_operator:** John P  Dixon → Cracker Coal Corp; 1980-01-18 to 1984-08-23; source msha-controller-operator-history
- **operator_operates_mine:** Jeddo-Highland Coal Company → Packer Stripping; 1984-08-24 to 1987-12-21; source msha-controller-operator-history
- **controller_controls_operator:** Pagnotti Enterprises Inc → Jeddo-Highland Coal Company; 1984-08-24 to 1987-12-21; source msha-controller-operator-history
- **operator_operates_mine:** Pac 23 Mining Company → Packer Stripping; 1987-12-22 to 2003-04-23; source msha-controller-operator-history
- **controller_controls_mine:** Joseph  Kleeman  et al → Packer Stripping; 1987-12-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joseph  Kleeman  et al → Pac 23 Mining Company; 1987-12-22 to 2003-04-23; source msha-controller-operator-history
- **operator_operates_mine:** Shenandoah Mining Co. → Packer Stripping; 2003-04-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Joseph  Kleeman  et al → Packer Stripping; 2003-04-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joseph  Kleeman  et al → Shenandoah Mining Co.; 2003-04-24 to current/open; source msha-controller-operator-history