# Relationship history for MSHA mine 1509942

Current hierarchy: **Miller Paul J → Peanut Coal Company → No 2 Mine (D)**

- 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:** Adkins James L & Mike Little → No 2 Mine (D); 1975-11-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Boyd Chester → No 2 Mine (D); 1976-08-25 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jimmy Carter Coal Company → No 2 Mine (D); 1976-09-08 to 1977-09-22; source msha-controller-operator-history
- **controller_controls_operator:** Boyd Chester → Jimmy Carter Coal Company; 1976-09-08 to 1977-09-22; source msha-controller-operator-history
- **operator_operates_mine:** Puncheon Coal Inc → No 2 Mine (D); 1977-09-23 to 1980-10-21; source msha-controller-operator-history
- **controller_controls_operator:** Adkins James L & Mike Little → Puncheon Coal Inc; 1977-09-23 to 1980-10-21; source msha-controller-operator-history
- **controller_controls_mine:** Miller Paul J → No 2 Mine (D); 1980-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Peanut Coal Company → No 2 Mine (D); 1980-10-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Miller Paul J → Peanut Coal Company; 1980-10-22 to current/open; source msha-controller-operator-history