# Relationship history for MSHA mine 1519909

Current hierarchy: **Keri Alyssa Findley → Cumberland Coal Corporation → Trace Fork #2**

- 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:** Lloyd  Hill et al → Trace Fork #2; 2019-10-17 to 2019-11-14; source msha-controller-operator-history
- **controller_controls_mine:** Ascentia Inc → Trace Fork #2; 2019-11-15 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Coking Coal, LLC → Trace Fork #2; 2021-12-15 to 2025-09-29; source msha-controller-operator-history
- **controller_controls_operator:** Lloyd  Hill et al → Coking Coal, LLC; 2021-12-15 to 2019-11-14; source msha-controller-operator-history
- **controller_controls_operator:** Charles  Whitfield et al → Coking Coal, LLC; 2021-12-15 to 2019-11-14; source msha-controller-operator-history
- **controller_controls_operator:** James  Chisholm et al → Coking Coal, LLC; 2021-12-15 to 2019-11-14; source msha-controller-operator-history
- **controller_controls_operator:** Ascentia Inc → Coking Coal, LLC; 2021-12-15 to 2025-09-29; source msha-controller-operator-history
- **controller_controls_mine:** Keri Alyssa Findley → Trace Fork #2; 2025-09-22 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cumberland Coal Corporation → Trace Fork #2; 2025-09-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Keri Alyssa Findley → Cumberland Coal Corporation; 2025-09-30 to current/open; source msha-controller-operator-history