# Relationship history for MSHA mine 4201533

Current hierarchy: **Ron A  Pene → Pene Mining → Lucky Strike**

- 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:** Leo D & John Jackson Mining Company → Lucky Strike; 1978-03-09 to 1979-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Jackson John & Leo D → Lucky Strike; 1978-03-09 to 1979-08-31; source msha-controller-operator-history
- **controller_controls_operator:** Jackson John & Leo D → Leo D & John Jackson Mining Company; 1978-03-09 to 1979-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Ron A  Pene → Lucky Strike; 1979-08-25 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Pene Mining → Lucky Strike; 1979-09-01 to 1981-06-09; source msha-controller-operator-history
- **controller_controls_operator:** Ron A  Pene → Pene Mining; 1979-09-01 to 1981-06-09; source msha-controller-operator-history
- **operator_operates_mine:** A & R Mining → Lucky Strike; 1981-06-10 to 2009-01-19; source msha-controller-operator-history
- **controller_controls_mine:** Pene Anthony Jr Et Al → Lucky Strike; 1981-06-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pene Anthony Jr Et Al → A & R Mining; 1981-06-10 to 2009-01-19; source msha-controller-operator-history
- **operator_operates_mine:** Pene Mining → Lucky Strike; 2009-01-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ron A  Pene → Pene Mining; 2009-01-20 to current/open; source msha-controller-operator-history