# Relationship history for MSHA mine 4503295

Current hierarchy: **Robert  Braunworth; Brad  Reeves → Tenino Group Llc → HERCULES**

- 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:** Doug Remmick Northwest Stone Inc → HERCULES; 1993-05-01 to 1997-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Doug  Remmick → HERCULES; 1993-05-01 to 1997-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Doug  Remmick → Doug Remmick Northwest Stone Inc; 1993-05-01 to 1997-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Tenino Group Llc → HERCULES; 1998-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Robert  Braunworth et al → HERCULES; 1998-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert  Braunworth et al → Tenino Group Llc; 1998-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brad  Reeves et al → Tenino Group Llc; 1998-01-01 to current/open; source msha-controller-operator-history