# Relationship history for MSHA mine 1518978

Current hierarchy: **Sev.en Global Investments a.s. → Rockwell Mining, LLC → SHM-44**

- 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:** James River Coal Company → SHM-44; 2006-01-30 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** James River Coal Service Company → SHM-44; 2006-03-29 to 2014-09-03; source msha-controller-operator-history
- **controller_controls_operator:** James River Coal Company → James River Coal Service Company; 2006-03-29 to 2014-09-03; source msha-controller-operator-history
- **operator_operates_mine:** Blue Diamond Mining, LLC → SHM-44; 2014-09-04 to 2016-02-12; source msha-controller-operator-history
- **controller_controls_mine:** Blackhawk Mining LLC → SHM-44; 2014-09-04 to 2020-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Blackhawk Mining LLC → Blue Diamond Mining, LLC; 2014-09-04 to 2016-02-12; source msha-controller-operator-history
- **controller_controls_mine:** Blackhawk Mining LLC → SHM-44; 2015-10-26 to 2020-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Panther Creek Mining, LLC → SHM-44; 2016-02-13 to 2017-12-04; source msha-controller-operator-history
- **controller_controls_operator:** Blackhawk Mining LLC → Panther Creek Mining, LLC; 2016-02-13 to 2017-12-04; source msha-controller-operator-history
- **operator_operates_mine:** Rockwell Mining LLC → SHM-44; 2017-12-05 to 2021-11-30; source msha-controller-operator-history
- **controller_controls_operator:** Blackhawk Mining LLC → Rockwell Mining LLC; 2017-12-05 to 2020-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Sev.en Global Investments a.s. → SHM-44; 2020-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sev.en Global Investments a.s. → Blue Diamond Mining, LLC; 2020-06-01 to 2016-02-12; source msha-controller-operator-history
- **controller_controls_operator:** Sev.en Global Investments a.s. → Panther Creek Mining, LLC; 2020-06-01 to 2017-12-04; source msha-controller-operator-history
- **controller_controls_operator:** Sev.en Global Investments a.s. → Rockwell Mining LLC; 2020-06-01 to 2021-11-30; source msha-controller-operator-history
- **operator_operates_mine:** Panther Creek Mining LLC → SHM-44; 2021-12-01 to 2024-04-10; source msha-controller-operator-history
- **controller_controls_operator:** Blackhawk Mining LLC → Panther Creek Mining LLC; 2021-12-01 to 2020-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Sev.en Global Investments a.s. → Panther Creek Mining LLC; 2021-12-01 to 2024-04-10; source msha-controller-operator-history
- **operator_operates_mine:** Rockwell Mining, LLC → SHM-44; 2024-04-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Blackhawk Mining LLC → Rockwell Mining, LLC; 2024-04-11 to 2020-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Sev.en Global Investments a.s. → Rockwell Mining, LLC; 2024-04-11 to current/open; source msha-controller-operator-history