# Relationship history for MSHA mine 2300026

Current hierarchy: **Riverstone Group → Central Stone Company → Antire Quarry (CS-72)**

- 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:** Riverstone Group → Antire Quarry (CS-72); 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Bussen Quarries Inc → Antire Quarry (CS-72); 1950-01-01 to 1990-04-30; source msha-controller-operator-history
- **controller_controls_mine:** Bussen Realty Co et al → Antire Quarry (CS-72); 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bussen Realty Co et al → Bussen Quarries Inc; 1950-01-01 to 1990-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Missouri Gravel Co  et al → Bussen Quarries Inc; 1950-01-01 to 1990-04-30; source msha-controller-operator-history
- **operator_operates_mine:** BUSSEN QUARRIES INC → Antire Quarry (CS-72); 1990-05-01 to 2021-12-29; source msha-controller-operator-history
- **controller_controls_mine:** Riverstone Group → Antire Quarry (CS-72); 1990-05-01 to 2012-01-29; source msha-controller-operator-history
- **controller_controls_operator:** Riverstone Group → BUSSEN QUARRIES INC; 1990-05-01 to 2012-01-29; source msha-controller-operator-history
- **controller_controls_mine:** Bussen Quarries Inc et al → Antire Quarry (CS-72); 2012-01-30 to 2022-10-19; source msha-controller-operator-history
- **controller_controls_operator:** Bussen Quarries Inc et al → BUSSEN QUARRIES INC; 2012-01-30 to 2021-12-29; source msha-controller-operator-history
- **controller_controls_operator:** Riverstone Group et al → BUSSEN QUARRIES INC; 2012-01-30 to 2021-12-29; source msha-controller-operator-history
- **operator_operates_mine:** Central Stone Company → Antire Quarry (CS-72); 2021-12-30 to 2022-10-19; source msha-controller-operator-history
- **controller_controls_operator:** Riverstone Group → Central Stone Company; 2021-12-30 to 2022-10-19; source msha-controller-operator-history
- **operator_operates_mine:** Bussen Quarries, Inc. → Antire Quarry (CS-72); 2022-10-20 to 2024-07-15; source msha-controller-operator-history
- **controller_controls_operator:** Bussen Quarries Inc et al → Bussen Quarries, Inc.; 2022-10-20 to 2022-10-19; source msha-controller-operator-history
- **controller_controls_operator:** Riverstone Group et al → Bussen Quarries, Inc.; 2022-10-20 to 2022-10-19; source msha-controller-operator-history
- **controller_controls_operator:** Riverstone Group → Bussen Quarries, Inc.; 2022-10-20 to 2012-01-29; source msha-controller-operator-history
- **controller_controls_mine:** Riverstone Group → Antire Quarry (CS-72); 2022-10-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Riverstone Group → BUSSEN QUARRIES INC; 2022-10-20 to 2021-12-29; source msha-controller-operator-history
- **controller_controls_operator:** Riverstone Group → Bussen Quarries, Inc.; 2022-10-20 to 2024-07-15; source msha-controller-operator-history
- **operator_operates_mine:** Central Stone Company → Antire Quarry (CS-72); 2024-07-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Riverstone Group → Central Stone Company; 2024-07-16 to current/open; source msha-controller-operator-history