# Relationship history for MSHA mine 3608288

Current hierarchy: **James  Lenig → L Coal Company → Lenig Tunnel**

- 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:** West Cameron Mining → Lenig Tunnel; 1991-10-01 to 1999-01-07; source msha-controller-operator-history
- **controller_controls_mine:** James  Lenig → Lenig Tunnel; 1991-10-01 to 1999-01-07; source msha-controller-operator-history
- **controller_controls_operator:** James  Lenig → West Cameron Mining; 1991-10-01 to 1999-01-07; source msha-controller-operator-history
- **operator_operates_mine:** K Town Mining → Lenig Tunnel; 1999-01-08 to 1999-12-22; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth  Rothermel et al → Lenig Tunnel; 1999-01-08 to 1999-12-22; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth  Rothermel et al → K Town Mining; 1999-01-08 to 1999-12-22; source msha-controller-operator-history
- **operator_operates_mine:** H & R Coal Company → Lenig Tunnel; 1999-12-23 to 2000-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Sharp Walter & Randy Boyer → Lenig Tunnel; 1999-12-23 to 2000-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Sharp Walter & Randy Boyer → H & R Coal Company; 1999-12-23 to 2000-05-31; source msha-controller-operator-history
- **operator_operates_mine:** L Coal Company → Lenig Tunnel; 2000-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James  Lenig → Lenig Tunnel; 2000-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James  Lenig → L Coal Company; 2000-06-01 to current/open; source msha-controller-operator-history