# Relationship history for MSHA mine 4002962

Current hierarchy: **Lindsay Paris Mac → B & D Coal Company → Buffalo Mtn #4**

- 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:** Reeves Terry C → Buffalo Mtn #4; 1984-04-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lindsay Paris Mac → Buffalo Mtn #4; 1987-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Scarab Energy Corp → Buffalo Mtn #4; 1987-10-01 to 1989-03-30; source msha-controller-operator-history
- **controller_controls_operator:** Reeves Terry C → Scarab Energy Corp; 1987-10-01 to 1989-03-30; source msha-controller-operator-history
- **operator_operates_mine:** B & D Coal Company → Buffalo Mtn #4; 1989-03-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lindsay Paris Mac → B & D Coal Company; 1989-03-31 to current/open; source msha-controller-operator-history