# Relationship history for MSHA mine 4102517

Current hierarchy: **Mc Neese John → John Mc Neese → JOHN MCNEESE**

- 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

- **operator_operates_mine:** Conoco Inc → JOHN MCNEESE; 1950-01-01 to 1989-08-09; source msha-controller-operator-history
- **controller_controls_mine:** Continental Oil Company & Pioneer Nuclear Inc → JOHN MCNEESE; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Continental Oil Company & Pioneer Nuclear Inc → Conoco Inc; 1950-01-01 to 1989-08-09; source msha-controller-operator-history
- **operator_operates_mine:** John Mc Neese → JOHN MCNEESE; 1989-08-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mc Neese John → JOHN MCNEESE; 1989-08-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mc Neese John → John Mc Neese; 1989-08-10 to current/open; source msha-controller-operator-history