# Relationship history for MSHA mine 4003121

Current hierarchy: **Jackie (Mitch)  Fannin; Jack  Stump → Tennco Inc → Mine 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:** Tennco Inc → Mine No 1; 1998-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jackie (Mitch)  Fannin Et Al → Mine No 1; 1998-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jackie (Mitch)  Fannin Et Al → Tennco Inc; 1998-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jack  Stump Et Al → Tennco Inc; 1998-02-01 to current/open; source msha-controller-operator-history