# Relationship history for MSHA mine 1519770

Current hierarchy: **Michelle L  Banks → Phelps Energy and Resources 2 LLC → No. 4**

- 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 K  Damron → No. 4; 2011-12-06 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** MJK Mining Inc. → No. 4; 2014-11-10 to 2020-02-12; source msha-controller-operator-history
- **controller_controls_operator:** Lloyd K  Damron → MJK Mining Inc.; 2014-11-10 to 2020-02-12; source msha-controller-operator-history
- **operator_operates_mine:** Phelps Energy and Resources 2 LLC → No. 4; 2020-02-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jairus W  Hall → No. 4; 2020-02-13 to 2022-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Jairus W  Hall → Phelps Energy and Resources 2 LLC; 2020-02-13 to 2022-04-30; source msha-controller-operator-history
- **controller_controls_mine:** Michelle L  Banks → No. 4; 2022-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michelle L  Banks → Phelps Energy and Resources 2 LLC; 2022-05-01 to current/open; source msha-controller-operator-history