# Relationship history for MSHA mine 1507139

Current hierarchy: **Reading & Bates Corp → Golden Oak Mining Company Inc → Black Oak #2 Deep Mine**

- 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:** Creekway Coal Company Inc → Black Oak #2 Deep Mine; 1974-01-01 to 1978-08-02; source msha-controller-operator-history
- **controller_controls_mine:** Kincer Delmar → Black Oak #2 Deep Mine; 1974-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kincer Delmar → Creekway Coal Company Inc; 1974-01-01 to 1978-08-02; source msha-controller-operator-history
- **controller_controls_mine:** Baker Renfrow → Black Oak #2 Deep Mine; 1978-04-14 to 1983-09-20; source msha-controller-operator-history
- **controller_controls_mine:** Legg Morgan W Sr → Black Oak #2 Deep Mine; 1978-06-15 to 1980-08-17; source msha-controller-operator-history
- **operator_operates_mine:** Creek Way Coal Company Inc → Black Oak #2 Deep Mine; 1978-08-03 to 1980-08-17; source msha-controller-operator-history
- **controller_controls_operator:** Legg Morgan W Sr → Creek Way Coal Company Inc; 1978-08-03 to 1980-08-17; source msha-controller-operator-history
- **operator_operates_mine:** P & C Mining Company Inc → Black Oak #2 Deep Mine; 1980-08-18 to 1983-09-12; source msha-controller-operator-history
- **controller_controls_operator:** Baker Renfrow → P & C Mining Company Inc; 1980-08-18 to 1983-09-12; source msha-controller-operator-history
- **controller_controls_mine:** Reading & Bates Corp → Black Oak #2 Deep Mine; 1981-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Golden Oak Mining Company Inc → Black Oak #2 Deep Mine; 1983-09-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Reading & Bates Corp → Golden Oak Mining Company Inc; 1983-09-13 to current/open; source msha-controller-operator-history