# Relationship history for MSHA mine 1515339

Current hierarchy: **Newsome Ollie → Newcoal Inc → Mine B**

- 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:** Newsome Ollie Et Al → Mine B; 1985-01-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lemar Reece → Mine B; 1985-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Shauna-Darease Coal Inc → Mine B; 1985-08-01 to 1985-09-29; source msha-controller-operator-history
- **controller_controls_operator:** Lemar Reece → Shauna-Darease Coal Inc; 1985-08-01 to 1985-09-29; source msha-controller-operator-history
- **operator_operates_mine:** D I J Coal Company → Mine B; 1985-09-30 to 1986-06-11; source msha-controller-operator-history
- **controller_controls_mine:** Lefevers Tim → Mine B; 1985-09-30 to 1986-06-11; source msha-controller-operator-history
- **controller_controls_operator:** Lefevers Tim → D I J Coal Company; 1985-09-30 to 1986-06-11; source msha-controller-operator-history
- **operator_operates_mine:** Newcoal Inc → Mine B; 1986-06-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Newsome Ollie Et Al → Newcoal Inc; 1986-06-12 to current/open; source msha-controller-operator-history