# Relationship history for MSHA mine 4406715

Current hierarchy: **Carl  Mullins → Minchar Coal Company → Mine No 1**

- 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:** MAPCO Inc → Mine No 1; 1989-10-25 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Race Fork Coal Corp → Mine No 1; 1992-09-01 to 1992-12-13; source msha-controller-operator-history
- **controller_controls_operator:** MAPCO Inc → Race Fork Coal Corp; 1992-09-01 to 1992-12-13; source msha-controller-operator-history
- **operator_operates_mine:** D D & E Mining Inc → Mine No 1; 1992-12-14 to 1998-12-09; source msha-controller-operator-history
- **controller_controls_mine:** Gary  Dotson  et al → Mine No 1; 1992-12-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gary  Dotson  et al → D D & E Mining Inc; 1992-12-14 to 1998-12-09; source msha-controller-operator-history
- **operator_operates_mine:** Minchar Coal Company → Mine No 1; 1998-12-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Carl  Mullins → Mine No 1; 1998-12-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carl  Mullins → Minchar Coal Company; 1998-12-10 to current/open; source msha-controller-operator-history