# Relationship history for MSHA mine 4608431

Current hierarchy: **Kenneth  Robinette → Tear Drop Mining Inc → Mine #1 (2)**

- 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:** Apple Ridge Inc → Mine #1 (2); 1994-08-01 to 1994-10-19; source msha-controller-operator-history
- **controller_controls_mine:** William C  Vinson et al → Mine #1 (2); 1994-08-01 to 1994-10-19; source msha-controller-operator-history
- **controller_controls_operator:** William C  Vinson et al → Apple Ridge Inc; 1994-08-01 to 1994-10-19; source msha-controller-operator-history
- **operator_operates_mine:** Seaboard Energy Inc → Mine #1 (2); 1994-10-20 to 1995-02-23; source msha-controller-operator-history
- **controller_controls_mine:** Sandra  Dotson → Mine #1 (2); 1994-10-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sandra  Dotson → Seaboard Energy Inc; 1994-10-20 to 1995-02-23; source msha-controller-operator-history
- **operator_operates_mine:** Alpha Sierra Resources Inc → Mine #1 (2); 1995-02-24 to 1996-02-12; source msha-controller-operator-history
- **controller_controls_mine:** Sidney  Cline → Mine #1 (2); 1995-02-24 to 1996-02-12; source msha-controller-operator-history
- **controller_controls_operator:** Sidney  Cline → Alpha Sierra Resources Inc; 1995-02-24 to 1996-02-12; source msha-controller-operator-history
- **operator_operates_mine:** Iaeger Smokeless Coal Company → Mine #1 (2); 1996-02-13 to 1996-10-01; source msha-controller-operator-history
- **controller_controls_mine:** Charles O  Davis Jr → Mine #1 (2); 1996-02-13 to 1996-10-01; source msha-controller-operator-history
- **controller_controls_operator:** Charles O  Davis Jr → Iaeger Smokeless Coal Company; 1996-02-13 to 1996-10-01; source msha-controller-operator-history
- **operator_operates_mine:** C & C Construction Inc → Mine #1 (2); 1996-10-02 to 1997-02-24; source msha-controller-operator-history
- **controller_controls_mine:** Joseph  Rogers → Mine #1 (2); 1996-10-02 to 1997-02-24; source msha-controller-operator-history
- **controller_controls_operator:** Joseph  Rogers → C & C Construction Inc; 1996-10-02 to 1997-02-24; source msha-controller-operator-history
- **operator_operates_mine:** Tear Drop Mining Inc → Mine #1 (2); 1997-02-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth  Robinette → Mine #1 (2); 1997-02-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth  Robinette → Tear Drop Mining Inc; 1997-02-25 to current/open; source msha-controller-operator-history