# Relationship history for MSHA mine 1517158

Current hierarchy: **Lisa B  Parrott → Lonesome Pines Inc → #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:** Sandra  Roberts et al → #2; 1991-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Dixie-Blend Coal Company Inc → #2; 1991-11-01 to 1993-01-31; source msha-controller-operator-history
- **controller_controls_mine:** Blanton Stanley → #2; 1991-11-01 to 1993-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Blanton Stanley → Dixie-Blend Coal Company Inc; 1991-11-01 to 1993-01-31; source msha-controller-operator-history
- **operator_operates_mine:** Black Mountain Enterprises Inc → #2; 1993-02-01 to 1994-02-21; source msha-controller-operator-history
- **controller_controls_mine:** Lewis Carlos Lee → #2; 1993-02-01 to 1994-02-21; source msha-controller-operator-history
- **controller_controls_operator:** Lewis Carlos Lee → Black Mountain Enterprises Inc; 1993-02-01 to 1994-02-21; source msha-controller-operator-history
- **operator_operates_mine:** Wallins Creek Mining Inc → #2; 1994-02-22 to 1994-04-21; source msha-controller-operator-history
- **controller_controls_operator:** Sandra  Roberts et al → Wallins Creek Mining Inc; 1994-02-22 to 1994-04-21; source msha-controller-operator-history
- **controller_controls_operator:** Connie  Roberts et al → Wallins Creek Mining Inc; 1994-02-22 to 1994-04-21; source msha-controller-operator-history
- **controller_controls_mine:** Lisa B  Parrott → #2; 1994-03-22 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Lonesome Pines Inc → #2; 1994-04-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lisa B  Parrott → Lonesome Pines Inc; 1994-04-22 to current/open; source msha-controller-operator-history