# Relationship history for MSHA mine 1518709

Current hierarchy: **Carl  Kirk → Marshall Mining Inc → No. 7**

- 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:** CONSOL Energy Inc → No. 7; 1986-07-31 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Carl  Kirk et al → No. 7; 2000-05-11 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Consol of Kentucky, Inc. → No. 7; 2004-01-29 to 2005-05-02; source msha-controller-operator-history
- **controller_controls_operator:** CONSOL Energy Inc → Consol of Kentucky, Inc.; 2004-01-29 to 2005-05-02; source msha-controller-operator-history
- **operator_operates_mine:** Gateway Energy Inc → No. 7; 2005-05-03 to 2005-08-30; source msha-controller-operator-history
- **controller_controls_mine:** Baily  Allred et al → No. 7; 2005-05-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Baily  Allred et al → Gateway Energy Inc; 2005-05-03 to 2005-08-30; source msha-controller-operator-history
- **operator_operates_mine:** Marshall Mining Inc → No. 7; 2005-08-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carl  Kirk et al → Marshall Mining Inc; 2005-08-31 to current/open; source msha-controller-operator-history