# Relationship history for MSHA mine 1102623

Current hierarchy: **Melvin Danny L → Ideal Energies Inc → Recycle Plant 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Carbon Energies → Recycle Plant No 1; 1977-09-01 to 1978-05-17; source msha-controller-operator-history
- **controller_controls_mine:** United Energies Inc → Recycle Plant No 1; 1977-09-01 to 1978-05-17; source msha-controller-operator-history
- **controller_controls_operator:** United Energies Inc → Carbon Energies; 1977-09-01 to 1978-05-17; source msha-controller-operator-history
- **operator_operates_mine:** Ideal Energies Inc → Recycle Plant No 1; 1978-05-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Melvin Danny L → Recycle Plant No 1; 1978-05-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Melvin Danny L → Ideal Energies Inc; 1978-05-18 to current/open; source msha-controller-operator-history