# Relationship history for MSHA mine 4605068

Current hierarchy: **Branham Howard → Benafuels Processing Inc → 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Kelly John A → Plant No 1; 1975-07-01 to 1979-05-13; source msha-controller-operator-history
- **operator_operates_mine:** Metco Mining Corp → Plant No 1; 1976-01-01 to 1979-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Kelly John A → Metco Mining Corp; 1976-01-01 to 1979-04-30; source msha-controller-operator-history
- **operator_operates_mine:** Metco Mining Corp → Plant No 1; 1979-05-01 to 1983-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Continental Resources & Mineral Corp → Plant No 1; 1979-05-01 to 1983-08-31; source msha-controller-operator-history
- **controller_controls_operator:** Continental Resources & Mineral Corp → Metco Mining Corp; 1979-05-01 to 1983-08-31; source msha-controller-operator-history
- **operator_operates_mine:** Metco Mining Corp → Plant No 1; 1983-09-01 to 1985-10-01; source msha-controller-operator-history
- **controller_controls_mine:** Mathias Jack R → Plant No 1; 1983-09-01 to 1985-10-01; source msha-controller-operator-history
- **controller_controls_operator:** Mathias Jack R → Metco Mining Corp; 1983-09-01 to 1985-10-01; source msha-controller-operator-history
- **operator_operates_mine:** Metco Mining Corp → Plant No 1; 1985-10-02 to 1986-11-09; source msha-controller-operator-history
- **controller_controls_mine:** Thacker Lawrence → Plant No 1; 1985-10-02 to 1986-11-09; source msha-controller-operator-history
- **controller_controls_operator:** Thacker Lawrence → Metco Mining Corp; 1985-10-02 to 1986-11-09; source msha-controller-operator-history
- **operator_operates_mine:** Benafuels Processing Inc → Plant No 1; 1986-11-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Branham Howard → Plant No 1; 1986-11-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Branham Howard → Benafuels Processing Inc; 1986-11-10 to current/open; source msha-controller-operator-history