# Relationship history for MSHA mine 3303537

Current hierarchy: **Pittston Company → Addington Inc → Murray City Job**

- 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

- **operator_operates_mine:** Puckett Enterprise → Murray City Job; 1976-11-01 to 1979-03-01; source msha-controller-operator-history
- **controller_controls_mine:** Puckett Frank → Murray City Job; 1976-11-01 to 1979-03-01; source msha-controller-operator-history
- **controller_controls_operator:** Puckett Frank → Puckett Enterprise; 1976-11-01 to 1979-03-01; source msha-controller-operator-history
- **controller_controls_mine:** Daft Lawrence G → Murray City Job; 1976-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Daft Coal Company Inc → Murray City Job; 1979-03-02 to 1992-01-19; source msha-controller-operator-history
- **controller_controls_operator:** Daft Lawrence G → Daft Coal Company Inc; 1979-03-02 to 1992-01-19; source msha-controller-operator-history
- **controller_controls_mine:** Horizon Natural Resources Incorporated → Murray City Job; 1983-08-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Addington Inc → Murray City Job; 1992-01-20 to 1995-06-01; source msha-controller-operator-history
- **controller_controls_operator:** Horizon Natural Resources Incorporated → Addington Inc; 1992-01-20 to 1995-06-01; source msha-controller-operator-history
- **controller_controls_mine:** Pittston Company → Murray City Job; 1994-01-14 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Addington Inc → Murray City Job; 1995-06-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pittston Company → Addington Inc; 1995-06-02 to current/open; source msha-controller-operator-history