# Relationship history for MSHA mine 1507162

Current hierarchy: **Hatfield Richard & J Charles Lockhart → Lockfield Energy Inc → No 1 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Banacheck Mining Company Inc → No 1 Mine; 1974-01-01 to 1978-10-17; source msha-controller-operator-history
- **controller_controls_mine:** Thacker Donald → No 1 Mine; 1974-01-01 to 1978-10-17; source msha-controller-operator-history
- **controller_controls_operator:** Thacker Donald → Banacheck Mining Company Inc; 1974-01-01 to 1978-10-17; source msha-controller-operator-history
- **controller_controls_mine:** Reynolds Billy Joe--P J Hurley & Charles Dixon → No 1 Mine; 1978-05-23 to 1981-06-21; source msha-controller-operator-history
- **operator_operates_mine:** Riverfront Coal Company → No 1 Mine; 1978-10-18 to 1979-06-20; source msha-controller-operator-history
- **controller_controls_mine:** Williamson Terry & Leck Puckett → No 1 Mine; 1978-10-18 to 1979-06-20; source msha-controller-operator-history
- **controller_controls_operator:** Williamson Terry & Leck Puckett → Riverfront Coal Company; 1978-10-18 to 1979-06-20; source msha-controller-operator-history
- **operator_operates_mine:** Lori Ann Coal Company Inc → No 1 Mine; 1979-06-21 to 1979-08-07; source msha-controller-operator-history
- **controller_controls_mine:** Marcum Thomas Wayne → No 1 Mine; 1979-06-21 to 1979-08-07; source msha-controller-operator-history
- **controller_controls_operator:** Marcum Thomas Wayne → Lori Ann Coal Company Inc; 1979-06-21 to 1979-08-07; source msha-controller-operator-history
- **operator_operates_mine:** Lori Ann Coal Company Inc → No 1 Mine; 1979-08-08 to 1980-02-28; source msha-controller-operator-history
- **controller_controls_mine:** Curtis  Francis → No 1 Mine; 1979-08-08 to 1980-02-28; source msha-controller-operator-history
- **controller_controls_operator:** Curtis  Francis → Lori Ann Coal Company Inc; 1979-08-08 to 1980-02-28; source msha-controller-operator-history
- **operator_operates_mine:** Lori Ann Coal Company → No 1 Mine; 1980-03-01 to 1980-08-12; source msha-controller-operator-history
- **controller_controls_mine:** Bishop Bill Ray → No 1 Mine; 1980-03-01 to 1980-08-12; source msha-controller-operator-history
- **controller_controls_operator:** Bishop Bill Ray → Lori Ann Coal Company; 1980-03-01 to 1980-08-12; source msha-controller-operator-history
- **operator_operates_mine:** Angie Coal Company → No 1 Mine; 1980-08-13 to 1980-10-14; source msha-controller-operator-history
- **controller_controls_mine:** John E  Hall → No 1 Mine; 1980-08-13 to 1980-10-14; source msha-controller-operator-history
- **controller_controls_operator:** John E  Hall → Angie Coal Company; 1980-08-13 to 1980-10-14; source msha-controller-operator-history
- **operator_operates_mine:** Merit Coal Company Inc → No 1 Mine; 1980-10-15 to 1981-06-21; source msha-controller-operator-history
- **controller_controls_operator:** Reynolds Billy Joe--P J Hurley & Charles Dixon → Merit Coal Company Inc; 1980-10-15 to 1981-06-21; source msha-controller-operator-history
- **operator_operates_mine:** Dove Energy Inc → No 1 Mine; 1981-06-22 to 1983-03-08; source msha-controller-operator-history
- **controller_controls_mine:** Ward Ralph → No 1 Mine; 1981-06-22 to 1983-03-08; source msha-controller-operator-history
- **controller_controls_operator:** Ward Ralph → Dove Energy Inc; 1981-06-22 to 1983-03-08; source msha-controller-operator-history
- **operator_operates_mine:** Lori Ann Coal Company Inc → No 1 Mine; 1983-03-09 to 1983-05-05; source msha-controller-operator-history
- **controller_controls_mine:** Rash Gary → No 1 Mine; 1983-03-09 to 1983-05-05; source msha-controller-operator-history
- **controller_controls_operator:** Rash Gary → Lori Ann Coal Company Inc; 1983-03-09 to 1983-05-05; source msha-controller-operator-history
- **operator_operates_mine:** Lockfield Energy Inc → No 1 Mine; 1983-05-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hatfield Richard & J Charles Lockhart Et Al → No 1 Mine; 1983-05-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hatfield Richard & J Charles Lockhart Et Al → Lockfield Energy Inc; 1983-05-06 to current/open; source msha-controller-operator-history