# Relationship history for MSHA mine 5001667

Current hierarchy: **Mitch  Loveless → Rolling Stone Inc. → Extec 6000**

- 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:** Killion Land Company, LLC → Extec 6000; 2000-08-01 to 2011-04-04; source msha-controller-operator-history
- **controller_controls_mine:** Mary Lou  Killion et al → Extec 6000; 2000-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mary Lou  Killion et al → Killion Land Company, LLC; 2000-08-01 to 2011-04-04; source msha-controller-operator-history
- **controller_controls_operator:** Mick  Killion et al → Killion Land Company, LLC; 2000-08-01 to 2011-04-04; source msha-controller-operator-history
- **operator_operates_mine:** Rolling Stone Inc. → Extec 6000; 2011-04-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mitch  Loveless → Extec 6000; 2011-04-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mitch  Loveless → Rolling Stone Inc.; 2011-04-05 to current/open; source msha-controller-operator-history