# Relationship history for MSHA mine 0102249

Current hierarchy: **Cole Charles E → Tri State Energy Inc → Tri-State Energy No 1**

- 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:** Tri-State Energy Inc → Tri-State Energy No 1; 1980-10-01 to 1981-07-14; source msha-controller-operator-history
- **controller_controls_mine:** Ganje Harold → Tri-State Energy No 1; 1980-10-01 to 1981-07-14; source msha-controller-operator-history
- **controller_controls_operator:** Ganje Harold → Tri-State Energy Inc; 1980-10-01 to 1981-07-14; source msha-controller-operator-history
- **controller_controls_mine:** Cole Charles E → Tri-State Energy No 1; 1981-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tri State Energy Inc → Tri-State Energy No 1; 1981-07-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cole Charles E → Tri State Energy Inc; 1981-07-15 to current/open; source msha-controller-operator-history