# Relationship history for MSHA mine 4607646

Current hierarchy: **Mc Court Loye → Consolidated Management Inc → Laurel Creek Mine #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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Mc Million Virgil & Jerry Hatley → Laurel Creek Mine #1; 1987-09-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Klaproth Abner H & Joe Bill Bowers → Laurel Creek Mine #1; 1988-11-03 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Shaker Run Coal Company Inc → Laurel Creek Mine #1; 1989-01-01 to 1989-05-11; source msha-controller-operator-history
- **controller_controls_operator:** Mc Million Virgil & Jerry Hatley → Shaker Run Coal Company Inc; 1989-01-01 to 1989-05-11; source msha-controller-operator-history
- **operator_operates_mine:** Northern Lights Coal Corp → Laurel Creek Mine #1; 1989-05-12 to 1990-04-02; source msha-controller-operator-history
- **controller_controls_mine:** Phillips James D Et Al → Laurel Creek Mine #1; 1989-05-12 to 1990-04-02; source msha-controller-operator-history
- **controller_controls_operator:** Phillips James D Et Al → Northern Lights Coal Corp; 1989-05-12 to 1990-04-02; source msha-controller-operator-history
- **operator_operates_mine:** Crawford Coal Inc → Laurel Creek Mine #1; 1990-04-03 to 1990-08-22; source msha-controller-operator-history
- **controller_controls_mine:** Mc Coy Henry M → Laurel Creek Mine #1; 1990-04-03 to 1990-08-22; source msha-controller-operator-history
- **controller_controls_operator:** Mc Coy Henry M → Crawford Coal Inc; 1990-04-03 to 1990-08-22; source msha-controller-operator-history
- **operator_operates_mine:** Spring Ridge Coal Company → Laurel Creek Mine #1; 1990-08-23 to 1992-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Carpenter Michael R & Charles G Roberts Sr → Laurel Creek Mine #1; 1990-08-23 to 1992-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Carpenter Michael R & Charles G Roberts Sr → Spring Ridge Coal Company; 1990-08-23 to 1992-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Big Valley Coal Corp → Laurel Creek Mine #1; 1992-04-01 to 1992-08-05; source msha-controller-operator-history
- **controller_controls_operator:** Klaproth Abner H & Joe Bill Bowers → Big Valley Coal Corp; 1992-04-01 to 1992-08-05; source msha-controller-operator-history
- **controller_controls_mine:** Mc Court Loye → Laurel Creek Mine #1; 1992-07-07 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Consolidated Management Inc → Laurel Creek Mine #1; 1992-08-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mc Court Loye → Consolidated Management Inc; 1992-08-06 to current/open; source msha-controller-operator-history