# Relationship history for MSHA mine 4605365

Current hierarchy: **Swim Ted → Mercer R & S Energy Inc → No 17**

- 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:** Oakwood Fuel Inc → No 17; 1976-11-01 to 1978-10-03; source msha-controller-operator-history
- **controller_controls_mine:** Collins Ted → No 17; 1976-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Collins Ted → Oakwood Fuel Inc; 1976-11-01 to 1978-10-03; source msha-controller-operator-history
- **operator_operates_mine:** Mercer R & S Energy Corp → No 17; 1978-10-04 to 1980-04-24; source msha-controller-operator-history
- **controller_controls_mine:** Estil  Stillwell → No 17; 1978-10-04 to 1980-04-24; source msha-controller-operator-history
- **controller_controls_operator:** Estil  Stillwell → Mercer R & S Energy Corp; 1978-10-04 to 1980-04-24; source msha-controller-operator-history
- **operator_operates_mine:** Mercer R & S Energy Inc → No 17; 1980-04-25 to 1981-06-24; source msha-controller-operator-history
- **controller_controls_mine:** Elmore C C → No 17; 1980-04-25 to 1981-06-24; source msha-controller-operator-history
- **controller_controls_operator:** Elmore C C → Mercer R & S Energy Inc; 1980-04-25 to 1981-06-24; source msha-controller-operator-history
- **operator_operates_mine:** Mercer R & S Energy Inc → No 17; 1981-06-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Swim Ted → No 17; 1981-06-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Swim Ted → Mercer R & S Energy Inc; 1981-06-25 to current/open; source msha-controller-operator-history