# Relationship history for MSHA mine 4605978

Current hierarchy: **CONSOL Energy Inc → Consol of Kentucky Inc → Bronzite III**

- 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:** Eastern Mingo Coal Company → Bronzite III; 1979-03-01 to 1987-07-09; source msha-controller-operator-history
- **controller_controls_mine:** Massey Energy Company → Bronzite III; 1979-03-01 to 1987-07-09; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Eastern Mingo Coal Company; 1979-03-01 to 1987-07-09; source msha-controller-operator-history
- **controller_controls_mine:** CONSOL Energy Inc → Bronzite III; 1986-07-31 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Eastern Mingo Coal Company → Bronzite III; 1987-07-10 to 1992-12-18; source msha-controller-operator-history
- **controller_controls_mine:** Shell Oil Company → Bronzite III; 1987-07-10 to 1992-12-18; source msha-controller-operator-history
- **controller_controls_operator:** Shell Oil Company → Eastern Mingo Coal Company; 1987-07-10 to 1992-12-18; source msha-controller-operator-history
- **operator_operates_mine:** Eastern Mingo Coal Company → Bronzite III; 1992-12-19 to 1998-09-01; source msha-controller-operator-history
- **controller_controls_mine:** Zeigler Coal Holding Company → Bronzite III; 1992-12-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Zeigler Coal Holding Company → Eastern Mingo Coal Company; 1992-12-19 to 1998-09-01; source msha-controller-operator-history
- **operator_operates_mine:** Eastern Mingo Coal Company → Bronzite III; 1998-09-02 to 2004-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Horizon Natural Resources Incorporated → Bronzite III; 1998-09-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Horizon Natural Resources Incorporated → Eastern Mingo Coal Company; 1998-09-02 to 2004-09-30; source msha-controller-operator-history
- **operator_operates_mine:** LCC West Virginia, LLC → Bronzite III; 2004-10-01 to 2005-03-28; source msha-controller-operator-history
- **controller_controls_mine:** Lexington Coal Company LLC → Bronzite III; 2004-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lexington Coal Company LLC → LCC West Virginia, LLC; 2004-10-01 to 2005-03-28; source msha-controller-operator-history
- **operator_operates_mine:** Southern West Virginia Resources, LLC → Bronzite III; 2005-03-29 to 2005-06-12; source msha-controller-operator-history
- **controller_controls_mine:** CONSOL Energy Inc → Bronzite III; 2005-03-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CONSOL Energy Inc → Southern West Virginia Resources, LLC; 2005-03-29 to 2005-06-12; source msha-controller-operator-history
- **operator_operates_mine:** Jacob Mining Co LLC → Bronzite III; 2005-06-13 to 2009-07-01; source msha-controller-operator-history
- **controller_controls_mine:** Wolford Jeffrey → Bronzite III; 2005-06-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wolford Jeffrey → Jacob Mining Co LLC; 2005-06-13 to 2009-07-01; source msha-controller-operator-history
- **operator_operates_mine:** Consol of Kentucky Inc → Bronzite III; 2009-07-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CONSOL Energy Inc → Consol of Kentucky Inc; 2009-07-02 to current/open; source msha-controller-operator-history