# Relationship history for MSHA mine 3401273

Current hierarchy: **Dolese Brothers Company → The Quapaw Company → Drumright Quarry**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Dolese Brothers Company → Drumright Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Robert L  Childress et al → Drumright Quarry; 1950-01-01 to 2019-07-31; source msha-controller-operator-history
- **operator_operates_mine:** The Quapaw Co → Drumright Quarry; 1980-05-01 to 2020-06-26; source msha-controller-operator-history
- **controller_controls_operator:** Robert L  Childress et al → The Quapaw Co; 1980-05-01 to 2019-07-31; source msha-controller-operator-history
- **controller_controls_operator:** Donald B  Childress et al → The Quapaw Co; 1980-05-01 to 2019-07-31; source msha-controller-operator-history
- **controller_controls_mine:** Robert L  Childress et al → Drumright Quarry; 2019-08-01 to 2020-06-25; source msha-controller-operator-history
- **controller_controls_operator:** Robert L  Childress et al → The Quapaw Co; 2019-08-01 to 2020-06-25; source msha-controller-operator-history
- **controller_controls_operator:** Tommy  Kiser et al → The Quapaw Co; 2019-08-01 to 2020-06-25; source msha-controller-operator-history
- **controller_controls_mine:** Dolese Brothers Company → Drumright Quarry; 2020-06-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dolese Brothers Company → The Quapaw Co; 2020-06-26 to 2020-06-26; source msha-controller-operator-history
- **operator_operates_mine:** Dolese Bros. Co. → Drumright Quarry; 2020-06-27 to 2021-02-11; source msha-controller-operator-history
- **controller_controls_operator:** Dolese Brothers Company → Dolese Bros. Co.; 2020-06-27 to 2021-02-11; source msha-controller-operator-history
- **operator_operates_mine:** The Quapaw Company → Drumright Quarry; 2021-02-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert L  Childress et al → The Quapaw Company; 2021-02-12 to 2020-06-25; source msha-controller-operator-history
- **controller_controls_operator:** Tommy  Kiser et al → The Quapaw Company; 2021-02-12 to 2020-06-25; source msha-controller-operator-history
- **controller_controls_operator:** Dolese Brothers Company → The Quapaw Company; 2021-02-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donald B  Childress et al → The Quapaw Company; 2021-02-12 to 2019-07-31; source msha-controller-operator-history
- **controller_controls_operator:** Robert L  Childress et al → The Quapaw Company; 2021-02-12 to 2019-07-31; source msha-controller-operator-history