# Relationship history for MSHA mine 2302446

Current hierarchy: **BMC Enterprises Inc → Base Rock Minerals → Base Rock Burfordville**

- 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:** Leroy  Tarr et al → Base Rock Burfordville; 1996-04-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Francis P  Fischer  et al → Base Rock Burfordville; 2001-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** T & M Stone Quarry LLC → Base Rock Burfordville; 2013-01-16 to 2016-11-28; source msha-controller-operator-history
- **controller_controls_operator:** Leroy  Tarr et al → T & M Stone Quarry LLC; 2013-01-16 to 2016-11-28; source msha-controller-operator-history
- **controller_controls_operator:** Wanda  Tarr et al → T & M Stone Quarry LLC; 2013-01-16 to 2016-11-28; source msha-controller-operator-history
- **controller_controls_mine:** Vernon J  Bauman → Base Rock Burfordville; 2013-06-01 to 2017-04-13; source msha-controller-operator-history
- **operator_operates_mine:** Fischer Quarry & Hauling, LLC → Base Rock Burfordville; 2016-11-29 to 2026-01-04; source msha-controller-operator-history
- **controller_controls_operator:** Francis P  Fischer  et al → Fischer Quarry & Hauling, LLC; 2016-11-29 to 2026-01-04; source msha-controller-operator-history
- **controller_controls_operator:** Robert G  Fischer  et al → Fischer Quarry & Hauling, LLC; 2016-11-29 to 2026-01-04; source msha-controller-operator-history
- **controller_controls_mine:** Kerry  Bauman et al → Base Rock Burfordville; 2017-04-14 to 2023-04-02; source msha-controller-operator-history
- **controller_controls_mine:** Aggregate Holdings LLC et al → Base Rock Burfordville; 2023-04-03 to 2024-04-24; source msha-controller-operator-history
- **controller_controls_mine:** BMC Enterprises Inc → Base Rock Burfordville; 2024-04-25 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Base Rock Minerals → Base Rock Burfordville; 2026-01-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** BMC Enterprises Inc → Base Rock Minerals; 2026-01-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kerry  Bauman et al → Base Rock Minerals; 2026-01-05 to 2023-04-02; source msha-controller-operator-history
- **controller_controls_operator:** Andy  Arnold et al → Base Rock Minerals; 2026-01-05 to 2023-04-02; source msha-controller-operator-history
- **controller_controls_operator:** Aggregate Holdings LLC et al → Base Rock Minerals; 2026-01-05 to 2024-04-24; source msha-controller-operator-history
- **controller_controls_operator:** Bauman Brothers LLC et al → Base Rock Minerals; 2026-01-05 to 2024-04-24; source msha-controller-operator-history
- **controller_controls_operator:** Vernon J  Bauman → Base Rock Minerals; 2026-01-05 to 2017-04-13; source msha-controller-operator-history