# Relationship history for MSHA mine 4606961

Current hierarchy: **James E  Trent → Denairo Mining Inc → No2**

- 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:** Trust Coal Company Inc → No2; 1985-07-01 to 1986-09-07; source msha-controller-operator-history
- **controller_controls_mine:** Mounts Carl → No2; 1985-07-01 to 1986-09-07; source msha-controller-operator-history
- **controller_controls_operator:** Mounts Carl → Trust Coal Company Inc; 1985-07-01 to 1986-09-07; source msha-controller-operator-history
- **operator_operates_mine:** Denairo Mining Inc → No2; 1986-09-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James E  Trent → No2; 1986-09-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James E  Trent → Denairo Mining Inc; 1986-09-08 to current/open; source msha-controller-operator-history