# Relationship history for MSHA mine 0101694

Current hierarchy: **American Industries & Resources Corp → International Energy Corp → Pit 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

- **controller_controls_mine:** Kizziah Robert E → Pit No 1; 1975-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Kenala Coal Company Inc → Pit No 1; 1977-04-01 to 1977-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Kizziah Robert E → Kenala Coal Company Inc; 1977-04-01 to 1977-09-30; source msha-controller-operator-history
- **operator_operates_mine:** International Energy Corp → Pit No 1; 1977-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** American Industries & Resources Corp → Pit No 1; 1977-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** American Industries & Resources Corp → International Energy Corp; 1977-10-01 to current/open; source msha-controller-operator-history