# Relationship history for MSHA mine 4003060

Current hierarchy: **Lee A  Brown → Big Lee Coal Inc → No 1**

- 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:** Rodney  Sanders → No 1; 1991-01-10 to 1992-09-27; source msha-controller-operator-history
- **operator_operates_mine:** Sanders Enterprises Inc → No 1; 1992-06-01 to 1992-09-27; source msha-controller-operator-history
- **controller_controls_operator:** Rodney  Sanders → Sanders Enterprises Inc; 1992-06-01 to 1992-09-27; source msha-controller-operator-history
- **operator_operates_mine:** Freedom Energy Corp → No 1; 1992-09-28 to 1997-10-19; source msha-controller-operator-history
- **controller_controls_mine:** Albert  Haynes → No 1; 1992-09-28 to 1997-10-19; source msha-controller-operator-history
- **controller_controls_operator:** Albert  Haynes → Freedom Energy Corp; 1992-09-28 to 1997-10-19; source msha-controller-operator-history
- **controller_controls_mine:** Bryan  Robbins → No 1; 1996-07-11 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Allison Coal Company Inc → No 1; 1997-10-20 to 1998-11-04; source msha-controller-operator-history
- **controller_controls_operator:** Bryan  Robbins → Allison Coal Company Inc; 1997-10-20 to 1998-11-04; source msha-controller-operator-history
- **operator_operates_mine:** Omni Coal Company → No 1; 1998-11-05 to 1999-02-09; source msha-controller-operator-history
- **controller_controls_mine:** Jimmy  Violet → No 1; 1998-11-05 to 1999-02-09; source msha-controller-operator-history
- **controller_controls_operator:** Jimmy  Violet → Omni Coal Company; 1998-11-05 to 1999-02-09; source msha-controller-operator-history
- **operator_operates_mine:** Big Lee Coal Inc → No 1; 1999-02-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lee A  Brown → No 1; 1999-02-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lee A  Brown → Big Lee Coal Inc; 1999-02-10 to current/open; source msha-controller-operator-history