# Relationship history for MSHA mine 4003273

Current hierarchy: **Darrell  Wagner → Solid Fuel, Inc. → Watson Branch**

- 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:** Jackie (Mitch)  Fannin Et Al → Watson Branch; 1998-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Wilma  Wagner → Watson Branch; 2003-04-23 to 2011-08-11; source msha-controller-operator-history
- **operator_operates_mine:** Tennco, Inc. → Watson Branch; 2006-02-03 to 2012-01-02; source msha-controller-operator-history
- **controller_controls_operator:** Jackie (Mitch)  Fannin Et Al → Tennco, Inc.; 2006-02-03 to 2012-01-02; source msha-controller-operator-history
- **controller_controls_operator:** Jack  Stump Et Al → Tennco, Inc.; 2006-02-03 to 2012-01-02; source msha-controller-operator-history
- **controller_controls_mine:** Darrell  Wagner → Watson Branch; 2011-08-12 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Solid Fuel, Inc. → Watson Branch; 2012-01-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wilma  Wagner → Solid Fuel, Inc.; 2012-01-03 to 2011-08-11; source msha-controller-operator-history
- **controller_controls_operator:** Darrell  Wagner → Solid Fuel, Inc.; 2012-01-03 to current/open; source msha-controller-operator-history