# Relationship history for MSHA mine 1515849

Current hierarchy: **Horizon Natural Resources Incorporated → Leslie Resources Inc → Pads Branch Prep Plant**

- 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:** Greg  Wells → Pads Branch Prep Plant; 1983-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Williams Companies Inc → Pads Branch Prep Plant; 1985-07-01 to 1995-06-19; source msha-controller-operator-history
- **operator_operates_mine:** Kem Coal Inc → Pads Branch Prep Plant; 1986-11-01 to 1995-06-19; source msha-controller-operator-history
- **controller_controls_operator:** Williams Companies Inc → Kem Coal Inc; 1986-11-01 to 1995-06-19; source msha-controller-operator-history
- **operator_operates_mine:** Kem Coal Company → Pads Branch Prep Plant; 1995-06-20 to 1995-12-20; source msha-controller-operator-history
- **controller_controls_mine:** James River Coal Company → Pads Branch Prep Plant; 1995-06-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James River Coal Company → Kem Coal Company; 1995-06-20 to 1995-12-20; source msha-controller-operator-history
- **operator_operates_mine:** Leslie Resources Inc → Pads Branch Prep Plant; 1995-12-21 to 1998-03-08; source msha-controller-operator-history
- **controller_controls_operator:** Greg  Wells → Leslie Resources Inc; 1995-12-21 to 1998-03-08; source msha-controller-operator-history
- **operator_operates_mine:** Leslie Resources Inc → Pads Branch Prep Plant; 1998-03-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Horizon Natural Resources Incorporated → Pads Branch Prep Plant; 1998-03-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Horizon Natural Resources Incorporated → Leslie Resources Inc; 1998-03-09 to current/open; source msha-controller-operator-history