# Relationship history for MSHA mine 4609519

Current hierarchy: **Lucy M  Taylor → Black Water, Inc → Sewell Valley #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:** David L  Huffman → Sewell Valley #2; 2003-12-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Warrior Energy Resources, LLC → Sewell Valley #2; 2016-10-18 to 2017-04-12; source msha-controller-operator-history
- **controller_controls_mine:** Targe Energy LLC → Sewell Valley #2; 2016-10-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Targe Energy LLC → Warrior Energy Resources, LLC; 2016-10-18 to 2017-04-12; source msha-controller-operator-history
- **controller_controls_mine:** Lucy M  Taylor → Sewell Valley #2; 2017-03-10 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Resources Limited, LLC → Sewell Valley #2; 2017-04-13 to 2017-07-17; source msha-controller-operator-history
- **controller_controls_operator:** David L  Huffman → Resources Limited, LLC; 2017-04-13 to 2017-07-17; source msha-controller-operator-history
- **operator_operates_mine:** Warrior Energy Resources, LLC → Sewell Valley #2; 2017-07-18 to 2025-10-14; source msha-controller-operator-history
- **controller_controls_operator:** Targe Energy LLC → Warrior Energy Resources, LLC; 2017-07-18 to 2025-10-14; source msha-controller-operator-history
- **operator_operates_mine:** Black Water, Inc → Sewell Valley #2; 2025-10-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lucy M  Taylor → Black Water, Inc; 2025-10-15 to current/open; source msha-controller-operator-history