# Relationship history for MSHA mine 1201946

Current hierarchy: **Peabody Energy Corporation → Peabody Midwest Mining, LLC → Viking Mine - Corning Pit**

- 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:** Shand Alexander (Holdings) Ltd → Viking Mine - Corning Pit; 1983-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** B & Ls Contracting Inc → Viking Mine - Corning Pit; 1984-06-01 to 1991-09-08; source msha-controller-operator-history
- **controller_controls_operator:** Shand Alexander (Holdings) Ltd → B & Ls Contracting Inc; 1984-06-01 to 1991-09-08; source msha-controller-operator-history
- **operator_operates_mine:** Black Beauty Mining Inc → Viking Mine - Corning Pit; 1991-09-09 to 1999-04-11; source msha-controller-operator-history
- **controller_controls_mine:** Black Beauty Resources → Viking Mine - Corning Pit; 1991-09-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Black Beauty Resources → Black Beauty Mining Inc; 1991-09-09 to 1999-04-11; source msha-controller-operator-history
- **controller_controls_mine:** Peabody Energy Corporation → Viking Mine - Corning Pit; 1997-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Peabody Midwest Mining, LLC → Viking Mine - Corning Pit; 1999-04-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Peabody Energy Corporation → Peabody Midwest Mining, LLC; 1999-04-12 to current/open; source msha-controller-operator-history