# Relationship history for MSHA mine 1513400

Current hierarchy: **Partin Earl → B & E Coal Company → B & E #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

- **operator_operates_mine:** Hardrock Coal Company → B & E #1; 1982-03-01 to 1983-01-03; source msha-controller-operator-history
- **controller_controls_mine:** Moore Edward-Alonzo Lanham Et Al → B & E #1; 1982-03-01 to 1983-01-03; source msha-controller-operator-history
- **controller_controls_operator:** Moore Edward-Alonzo Lanham Et Al → Hardrock Coal Company; 1982-03-01 to 1983-01-03; source msha-controller-operator-history
- **operator_operates_mine:** Sylvia Anne Coal Company → B & E #1; 1983-01-04 to 1983-04-07; source msha-controller-operator-history
- **controller_controls_mine:** Donahoe Clifford → B & E #1; 1983-01-04 to 1988-05-25; source msha-controller-operator-history
- **controller_controls_operator:** Donahoe Clifford → Sylvia Anne Coal Company; 1983-01-04 to 1983-04-07; source msha-controller-operator-history
- **controller_controls_mine:** Smith Joey → B & E #1; 1983-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Amy-Joe Coal Company Inc → B & E #1; 1983-04-08 to 1984-04-17; source msha-controller-operator-history
- **controller_controls_operator:** Smith Joey → Amy-Joe Coal Company Inc; 1983-04-08 to 1984-04-17; source msha-controller-operator-history
- **operator_operates_mine:** B & E Coal Company → B & E #1; 1984-04-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Partin Earl Et Al → B & E #1; 1984-04-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Partin Earl Et Al → B & E Coal Company; 1984-04-18 to current/open; source msha-controller-operator-history