# Relationship history for MSHA mine 4002114

Current hierarchy: **Penn Virginia Corp → Tenn Luttrell Company → Tenn Luttrell Company**

- 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:** Luttrell Mining Company Inc → Tenn Luttrell Company; 1950-01-01 to 1984-09-03; source msha-controller-operator-history
- **controller_controls_mine:** Preston Carroll Enterprises Inc → Tenn Luttrell Company; 1950-01-01 to 1984-09-03; source msha-controller-operator-history
- **controller_controls_operator:** Preston Carroll Enterprises Inc → Luttrell Mining Company Inc; 1950-01-01 to 1984-09-03; source msha-controller-operator-history
- **controller_controls_mine:** Morrison Knudsen Corp (Old) → Tenn Luttrell Company; 1983-06-22 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Blue Ridge Mining Company Inc → Tenn Luttrell Company; 1984-09-04 to 1988-10-27; source msha-controller-operator-history
- **controller_controls_operator:** Morrison Knudsen Corp (Old) → Blue Ridge Mining Company Inc; 1984-09-04 to 1988-10-27; source msha-controller-operator-history
- **controller_controls_mine:** Penn Virginia Corp → Tenn Luttrell Company; 1988-09-15 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tenn Luttrell Company → Tenn Luttrell Company; 1988-10-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Penn Virginia Corp → Tenn Luttrell Company; 1988-10-28 to current/open; source msha-controller-operator-history