# Relationship history for MSHA mine 4607216

Current hierarchy: **Compton Kennie D → War Eagle Construction Company Inc → No 4 Mine**

- 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:** Mounts Jimmy-Jerry Cline Et Al → No 4 Mine; 1981-09-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Kristi Ann Coal Inc → No 4 Mine; 1986-10-01 to 1987-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Mounts Jimmy-Jerry Cline Et Al → Kristi Ann Coal Inc; 1986-10-01 to 1987-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Compton Kennie D → No 4 Mine; 1986-10-30 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Little Man Coal Inc → No 4 Mine; 1987-10-01 to 1989-05-04; source msha-controller-operator-history
- **controller_controls_mine:** Lusk Bill → No 4 Mine; 1987-10-01 to 1989-05-04; source msha-controller-operator-history
- **controller_controls_operator:** Lusk Bill → Little Man Coal Inc; 1987-10-01 to 1989-05-04; source msha-controller-operator-history
- **operator_operates_mine:** Canrun Coal Inc → No 4 Mine; 1989-05-05 to 1990-01-15; source msha-controller-operator-history
- **controller_controls_mine:** Poe Clarence → No 4 Mine; 1989-05-05 to 1990-01-15; source msha-controller-operator-history
- **controller_controls_operator:** Poe Clarence → Canrun Coal Inc; 1989-05-05 to 1990-01-15; source msha-controller-operator-history
- **operator_operates_mine:** Coaler Coal Inc → No 4 Mine; 1990-01-16 to 1990-07-22; source msha-controller-operator-history
- **controller_controls_mine:** Hamrick William → No 4 Mine; 1990-01-16 to 1990-07-22; source msha-controller-operator-history
- **controller_controls_operator:** Hamrick William → Coaler Coal Inc; 1990-01-16 to 1990-07-22; source msha-controller-operator-history
- **operator_operates_mine:** War Eagle Construction Company Inc → No 4 Mine; 1990-07-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Compton Kennie D → War Eagle Construction Company Inc; 1990-07-23 to current/open; source msha-controller-operator-history