# Relationship history for MSHA mine 3402154

Current hierarchy: **Joe L  Martin → Wister Stone L.L.C. → Martin No. 1**

- 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

- **operator_operates_mine:** Wister Stone L.L.C. → Martin No. 1; 2016-02-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Tony R Martin et al → Martin No. 1; 2016-02-16 to 2017-12-21; source msha-controller-operator-history
- **controller_controls_operator:** Tony R Martin et al → Wister Stone L.L.C.; 2016-02-16 to 2017-12-21; source msha-controller-operator-history
- **controller_controls_operator:** Joe I Martin et al → Wister Stone L.L.C.; 2016-02-16 to 2017-12-21; source msha-controller-operator-history
- **controller_controls_mine:** Joe L  Martin → Martin No. 1; 2017-12-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joe L  Martin → Wister Stone L.L.C.; 2017-12-22 to current/open; source msha-controller-operator-history