# Relationship history for MSHA mine 1103217

Current hierarchy: **Monty L Swearingen; Matthew L Swearingen → River Bend Materials LLC → Pit #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

- **controller_controls_mine:** Monty L Swearingen et al → Pit #1; 1980-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Swearingen Excavating → Pit #1; 2009-08-07 to 2012-01-24; source msha-controller-operator-history
- **controller_controls_operator:** Monty L Swearingen et al → Swearingen Excavating; 2009-08-07 to 2012-01-24; source msha-controller-operator-history
- **controller_controls_operator:** Matthew L Swearingen et al → Swearingen Excavating; 2009-08-07 to 2012-01-24; source msha-controller-operator-history
- **operator_operates_mine:** River Bend Materials LLC → Pit #1; 2012-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Monty L Swearingen et al → Pit #1; 2012-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Monty L Swearingen et al → River Bend Materials LLC; 2012-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Matthew L Swearingen et al → River Bend Materials LLC; 2012-01-25 to current/open; source msha-controller-operator-history