# Relationship history for MSHA mine 4406977

Current hierarchy: **Hagy E  Barnett; Lonnie (Gordon)  Holmes → Coalfield Mining Contractors Inc → Stonega Taggart #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:** Coalfield Mining Contractors Inc → Stonega Taggart #2; 2000-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hagy E  Barnett et al → Stonega Taggart #2; 2000-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hagy E  Barnett et al → Coalfield Mining Contractors Inc; 2000-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lonnie (Gordon)  Holmes et al → Coalfield Mining Contractors Inc; 2000-01-01 to current/open; source msha-controller-operator-history