# Relationship history for MSHA mine 1511940

Current hierarchy: **Mize Lanious & Jackie → L & J Coal Company Inc → Mine #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:** Capps Ronald E → Mine #1; 1973-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** New Hignite Coal Company Inc → Mine #1; 1979-06-01 to 1987-06-18; source msha-controller-operator-history
- **controller_controls_operator:** Capps Ronald E → New Hignite Coal Company Inc; 1979-06-01 to 1987-06-18; source msha-controller-operator-history
- **operator_operates_mine:** L & J Coal Company Inc → Mine #1; 1987-06-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mize Lanious & Jackie Et Al → Mine #1; 1987-06-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mize Lanious & Jackie Et Al → L & J Coal Company Inc; 1987-06-19 to current/open; source msha-controller-operator-history