# Relationship history for MSHA mine 4406258

Current hierarchy: **Mack  Stiltner → Lucky J Coal Company → Mine No 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

- **controller_controls_mine:** Mack  Stiltner et al → Mine No 2; 1983-07-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Arrow Mining Inc → Mine No 2; 1985-10-01 to 1986-05-08; source msha-controller-operator-history
- **controller_controls_mine:** Farmer Charles T → Mine No 2; 1985-10-01 to 1986-05-08; source msha-controller-operator-history
- **controller_controls_operator:** Farmer Charles T → Arrow Mining Inc; 1985-10-01 to 1986-05-08; source msha-controller-operator-history
- **operator_operates_mine:** Lucky J Coal Company → Mine No 2; 1986-05-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mack  Stiltner et al → Lucky J Coal Company; 1986-05-09 to current/open; source msha-controller-operator-history