# Relationship history for MSHA mine 4002912

Current hierarchy: **Capps David → W G S Coal Inc → No 3**

- 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:** Jeffery Gary A → No 3; 1979-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Trivett Henry & Garieth → No 3; 1983-12-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Beech Bottom Coal Company Inc → No 3; 1986-02-01 to 1986-10-23; source msha-controller-operator-history
- **controller_controls_operator:** Trivett Henry & Garieth → Beech Bottom Coal Company Inc; 1986-02-01 to 1986-10-23; source msha-controller-operator-history
- **operator_operates_mine:** Block Mountain Mining Inc → No 3; 1986-10-24 to 1990-08-09; source msha-controller-operator-history
- **controller_controls_mine:** Lee  Congleton → No 3; 1986-10-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lee  Congleton → Block Mountain Mining Inc; 1986-10-24 to 1990-08-09; source msha-controller-operator-history
- **operator_operates_mine:** Tri-J Coal Company Inc → No 3; 1990-08-10 to 1995-07-05; source msha-controller-operator-history
- **controller_controls_operator:** Jeffery Gary A → Tri-J Coal Company Inc; 1990-08-10 to 1995-07-05; source msha-controller-operator-history
- **controller_controls_mine:** Capps David Et Al → No 3; 1994-04-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Doug D  Moore → No 3; 1995-06-20 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tennessee Mining Inc → No 3; 1995-07-06 to 1995-09-24; source msha-controller-operator-history
- **controller_controls_operator:** Doug D  Moore → Tennessee Mining Inc; 1995-07-06 to 1995-09-24; source msha-controller-operator-history
- **operator_operates_mine:** W G S Coal Inc → No 3; 1995-09-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Capps David Et Al → W G S Coal Inc; 1995-09-25 to current/open; source msha-controller-operator-history