# Relationship history for MSHA mine 3606119

Current hierarchy: **Fetterolf Donald L → Commonwealth Coals Inc → Kennell Strip - Job #5**

- 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

- **operator_operates_mine:** Blue Lick Coal Company Inc → Kennell Strip - Job #5; 1976-06-01 to 1977-12-06; source msha-controller-operator-history
- **controller_controls_mine:** Moran Thomas L → Kennell Strip - Job #5; 1976-06-01 to 1981-04-20; source msha-controller-operator-history
- **controller_controls_operator:** Moran Thomas L → Blue Lick Coal Company Inc; 1976-06-01 to 1977-12-06; source msha-controller-operator-history
- **operator_operates_mine:** Blue Lick Coal Company Inc → Kennell Strip - Job #5; 1977-12-07 to 1978-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Blum Bentley J → Kennell Strip - Job #5; 1977-12-07 to 1978-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Blum Bentley J → Blue Lick Coal Company Inc; 1977-12-07 to 1978-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Blue Lick Coal Company Inc → Kennell Strip - Job #5; 1979-01-01 to 1981-04-20; source msha-controller-operator-history
- **controller_controls_operator:** Moran Thomas L → Blue Lick Coal Company Inc; 1979-01-01 to 1981-04-20; source msha-controller-operator-history
- **controller_controls_mine:** Fetterolf Donald L → Kennell Strip - Job #5; 1979-05-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Blue Lick Coal Company Inc → Kennell Strip - Job #5; 1981-04-21 to 1981-06-04; source msha-controller-operator-history
- **controller_controls_mine:** Freeman Burgess → Kennell Strip - Job #5; 1981-04-21 to 1981-06-04; source msha-controller-operator-history
- **controller_controls_operator:** Freeman Burgess → Blue Lick Coal Company Inc; 1981-04-21 to 1981-06-04; source msha-controller-operator-history
- **operator_operates_mine:** Commonwealth Coals Inc → Kennell Strip - Job #5; 1981-06-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Fetterolf Donald L → Commonwealth Coals Inc; 1981-06-05 to current/open; source msha-controller-operator-history