# Relationship history for MSHA mine 4405096

Current hierarchy: **Collins Ted → Diamondback Mining Company Inc → No 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:** Hackney Buford & Herman T Wells → No 1; 1975-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Beth Ann Coal Corp → No 1; 1978-06-01 to 1979-08-06; source msha-controller-operator-history
- **controller_controls_operator:** Hackney Buford & Herman T Wells → Beth Ann Coal Corp; 1978-06-01 to 1979-08-06; source msha-controller-operator-history
- **operator_operates_mine:** Buckeye Mining Corp → No 1; 1979-08-07 to 1979-12-02; source msha-controller-operator-history
- **controller_controls_mine:** Hackney Buford-John R Lark Et Al → No 1; 1979-08-07 to 1979-12-02; source msha-controller-operator-history
- **controller_controls_operator:** Hackney Buford-John R Lark Et Al → Buckeye Mining Corp; 1979-08-07 to 1979-12-02; source msha-controller-operator-history
- **operator_operates_mine:** B & N Coal Company → No 1; 1979-12-03 to 1980-08-12; source msha-controller-operator-history
- **controller_controls_mine:** Meadows Gene → No 1; 1979-12-03 to 1980-08-12; source msha-controller-operator-history
- **controller_controls_operator:** Meadows Gene → B & N Coal Company; 1979-12-03 to 1980-08-12; source msha-controller-operator-history
- **operator_operates_mine:** Diamondback Mining Company Inc → No 1; 1980-08-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Collins Ted → No 1; 1980-08-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Collins Ted → Diamondback Mining Company Inc; 1980-08-13 to current/open; source msha-controller-operator-history