# Relationship history for MSHA mine 4002775

Current hierarchy: **Dyer Steve → Reatta Mining → Mine No 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

- **controller_controls_mine:** Jeffery Gary A → Mine No 1; 1979-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** E R C Coal Corp → Mine No 1; 1982-03-01 to 1987-09-27; source msha-controller-operator-history
- **controller_controls_mine:** Phillips Elmer → Mine No 1; 1982-03-01 to 1987-09-27; source msha-controller-operator-history
- **controller_controls_operator:** Phillips Elmer → E R C Coal Corp; 1982-03-01 to 1987-09-27; source msha-controller-operator-history
- **controller_controls_mine:** Lee  Congleton → Mine No 1; 1986-10-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Block Mountain Mining Inc → Mine No 1; 1987-09-28 to 1990-08-09; source msha-controller-operator-history
- **controller_controls_operator:** Lee  Congleton → Block Mountain Mining Inc; 1987-09-28 to 1990-08-09; source msha-controller-operator-history
- **operator_operates_mine:** Tri-J Coal Company Inc → Mine No 1; 1990-08-10 to 1995-02-28; source msha-controller-operator-history
- **controller_controls_operator:** Jeffery Gary A → Tri-J Coal Company Inc; 1990-08-10 to 1995-02-28; source msha-controller-operator-history
- **controller_controls_mine:** Onyx International Inc & Coalfield Consultants Inc → Mine No 1; 1992-02-14 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** West Prg 1 Inc → Mine No 1; 1995-03-01 to 1995-07-05; source msha-controller-operator-history
- **controller_controls_operator:** Onyx International Inc & Coalfield Consultants Inc → West Prg 1 Inc; 1995-03-01 to 1995-07-05; source msha-controller-operator-history
- **controller_controls_mine:** Doug D  Moore → Mine No 1; 1995-06-20 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tennessee Mining Inc → Mine No 1; 1995-07-06 to 1995-10-11; source msha-controller-operator-history
- **controller_controls_operator:** Doug D  Moore → Tennessee Mining Inc; 1995-07-06 to 1995-10-11; source msha-controller-operator-history
- **operator_operates_mine:** Lone Mountain 1 Inc → Mine No 1; 1995-10-12 to 1996-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Perry Robert & Jack Sumner Et Al → Mine No 1; 1995-10-12 to 1996-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Perry Robert & Jack Sumner Et Al → Lone Mountain 1 Inc; 1995-10-12 to 1996-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Allison Mining Inc → Mine No 1; 1997-01-01 to 1997-03-02; source msha-controller-operator-history
- **controller_controls_mine:** James R  Givens → Mine No 1; 1997-01-01 to 1997-03-02; source msha-controller-operator-history
- **controller_controls_operator:** James R  Givens → Allison Mining Inc; 1997-01-01 to 1997-03-02; source msha-controller-operator-history
- **operator_operates_mine:** Reatta Mining → Mine No 1; 1997-03-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Dyer Steve → Mine No 1; 1997-03-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dyer Steve → Reatta Mining; 1997-03-03 to current/open; source msha-controller-operator-history