# Relationship history for MSHA mine 1512602

Current hierarchy: **Joseph T  Bennett → Harlan Cumberland Coal Company LLC → Highsplint Preparation 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Duke Power Company → Highsplint Preparation Plant; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Joseph T  Bennett  et al → Highsplint Preparation Plant; 1974-08-14 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Eastover Mining Company → Highsplint Preparation Plant; 1980-10-01 to 1983-08-03; source msha-controller-operator-history
- **controller_controls_operator:** Duke Power Company → Eastover Mining Company; 1980-10-01 to 1983-08-03; source msha-controller-operator-history
- **controller_controls_mine:** Benjamin R.  Bennett → Highsplint Preparation Plant; 1981-11-03 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Manalapan Mining Company Inc → Highsplint Preparation Plant; 1983-08-04 to 2003-10-05; source msha-controller-operator-history
- **controller_controls_operator:** Benjamin R.  Bennett → Manalapan Mining Company Inc; 1983-08-04 to 2003-10-05; source msha-controller-operator-history
- **operator_operates_mine:** Harlan Cumberland Coal Company LLC → Highsplint Preparation Plant; 2003-10-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joseph T  Bennett  et al → Harlan Cumberland Coal Company LLC; 2003-10-06 to current/open; source msha-controller-operator-history