# Relationship history for MSHA mine 3609259

Current hierarchy: **John  Lenick → Lone Eagle Coal Co. Inc. → Lone Eagle West**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Frank M  Neumeister → Lone Eagle West; 1981-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John  Lenick et al → Lone Eagle West; 1997-02-03 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Neumeister Coal Company → Lone Eagle West; 2004-06-25 to 2014-07-30; source msha-controller-operator-history
- **controller_controls_operator:** Frank M  Neumeister → Neumeister Coal Company; 2004-06-25 to 2014-07-30; source msha-controller-operator-history
- **operator_operates_mine:** Lone Eagle Coal Co. Inc. → Lone Eagle West; 2014-07-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Lenick et al → Lone Eagle Coal Co. Inc.; 2014-07-31 to current/open; source msha-controller-operator-history