# Relationship history for MSHA mine 1001717

Current hierarchy: **Lane  Buchert; Evan  Buchert → Premier LLC → Rock Force 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:** Gene M  Ranstrom → Rock Force 1; 1985-04-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Ada Sand & Gravel & Construction Company → Rock Force 1; 1986-03-01 to 1989-07-17; source msha-controller-operator-history
- **controller_controls_operator:** Gene M  Ranstrom → Ada Sand & Gravel & Construction Company; 1986-03-01 to 1989-07-17; source msha-controller-operator-history
- **operator_operates_mine:** Wheeler Excavation & Trucking → Rock Force 1; 1989-07-18 to 1996-06-05; source msha-controller-operator-history
- **controller_controls_mine:** Carl  Wheeler → Rock Force 1; 1989-07-18 to 1996-06-05; source msha-controller-operator-history
- **controller_controls_operator:** Carl  Wheeler → Wheeler Excavation & Trucking; 1989-07-18 to 1996-06-05; source msha-controller-operator-history
- **operator_operates_mine:** Wheeler's Excavation & Trucking Inc → Rock Force 1; 1996-06-06 to 2019-12-30; source msha-controller-operator-history
- **controller_controls_mine:** Ron  Wheeler → Rock Force 1; 1996-06-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ron  Wheeler → Wheeler's Excavation & Trucking Inc; 1996-06-06 to 2019-12-30; source msha-controller-operator-history
- **controller_controls_mine:** Trae  Buchert et al → Rock Force 1; 2016-09-21 to 2024-11-05; source msha-controller-operator-history
- **operator_operates_mine:** Ada Sand & Gravel, Inc. → Rock Force 1; 2019-12-31 to 2025-04-30; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth B  Smith et al → Rock Force 1; 2019-12-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth B  Smith et al → Ada Sand & Gravel, Inc.; 2019-12-31 to 2025-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Robert A  Dean et al → Ada Sand & Gravel, Inc.; 2019-12-31 to 2025-04-30; source msha-controller-operator-history
- **controller_controls_mine:** Lane  Buchert et al → Rock Force 1; 2024-11-06 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Premier LLC → Rock Force 1; 2025-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Trae  Buchert et al → Premier LLC; 2025-05-01 to 2024-11-05; source msha-controller-operator-history
- **controller_controls_operator:** Lane  Buchert et al → Premier LLC; 2025-05-01 to 2024-11-05; source msha-controller-operator-history
- **controller_controls_operator:** Lane  Buchert et al → Premier LLC; 2025-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Evan  Buchert et al → Premier LLC; 2025-05-01 to current/open; source msha-controller-operator-history