# Relationship history for MSHA mine 4003053

Current hierarchy: **Scott E  Climer; Stephen F  Climer → Ruleman's Sand & Gravel Inc → Ruleman's Sand & Gravel Inc**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Ruleman'S Sand & Gravel Inc → Ruleman's Sand & Gravel Inc; 1992-02-01 to 2000-04-27; source msha-controller-operator-history
- **controller_controls_mine:** Norris H  Ruleman Jr → Ruleman's Sand & Gravel Inc; 1992-02-01 to 2000-04-27; source msha-controller-operator-history
- **controller_controls_operator:** Norris H  Ruleman Jr → Ruleman'S Sand & Gravel Inc; 1992-02-01 to 2000-04-27; source msha-controller-operator-history
- **operator_operates_mine:** Ruleman's Sand & Gravel Inc → Ruleman's Sand & Gravel Inc; 2000-04-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Frank  Climer → Ruleman's Sand & Gravel Inc; 2000-04-28 to 2013-07-30; source msha-controller-operator-history
- **controller_controls_operator:** Frank  Climer → Ruleman's Sand & Gravel Inc; 2000-04-28 to 2013-07-30; source msha-controller-operator-history
- **controller_controls_mine:** Scott E  Climer et al → Ruleman's Sand & Gravel Inc; 2013-07-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott E  Climer et al → Ruleman's Sand & Gravel Inc; 2013-07-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stephen F  Climer et al → Ruleman's Sand & Gravel Inc; 2013-07-31 to current/open; source msha-controller-operator-history