# Relationship history for MSHA mine 4607490

Current hierarchy: **James E  Stump; Randall  Stump → R J Mining Inc → No 1 (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

- **operator_operates_mine:** Wescar Resources Inc → No 1 (1); 1988-03-01 to 1991-07-08; source msha-controller-operator-history
- **controller_controls_mine:** Stevenson Dewey L → No 1 (1); 1988-03-01 to 1991-07-08; source msha-controller-operator-history
- **controller_controls_operator:** Stevenson Dewey L → Wescar Resources Inc; 1988-03-01 to 1991-07-08; source msha-controller-operator-history
- **operator_operates_mine:** West Miller Mining Company Inc → No 1 (1); 1991-07-09 to 1991-08-14; source msha-controller-operator-history
- **controller_controls_mine:** Arthur C  Miller → No 1 (1); 1991-07-09 to 1991-08-14; source msha-controller-operator-history
- **controller_controls_operator:** Arthur C  Miller → West Miller Mining Company Inc; 1991-07-09 to 1991-08-14; source msha-controller-operator-history
- **operator_operates_mine:** Alma Ridge Inc → No 1 (1); 1991-08-15 to 1993-01-18; source msha-controller-operator-history
- **controller_controls_mine:** Mayhorn Les & Steve → No 1 (1); 1991-08-15 to 1993-01-18; source msha-controller-operator-history
- **controller_controls_operator:** Mayhorn Les & Steve → Alma Ridge Inc; 1991-08-15 to 1993-01-18; source msha-controller-operator-history
- **operator_operates_mine:** Alma Ridge Inc → No 1 (1); 1993-01-19 to 1993-02-14; source msha-controller-operator-history
- **controller_controls_mine:** Hardin William F Et Al → No 1 (1); 1993-01-19 to 1993-02-14; source msha-controller-operator-history
- **controller_controls_operator:** Hardin William F Et Al → Alma Ridge Inc; 1993-01-19 to 1993-02-14; source msha-controller-operator-history
- **operator_operates_mine:** Alma Ridge Inc → No 1 (1); 1993-02-15 to 1993-10-19; source msha-controller-operator-history
- **controller_controls_mine:** Mayhorn Jimmy-Gary Et Al → No 1 (1); 1993-02-15 to 1993-10-19; source msha-controller-operator-history
- **controller_controls_operator:** Mayhorn Jimmy-Gary Et Al → Alma Ridge Inc; 1993-02-15 to 1993-10-19; source msha-controller-operator-history
- **operator_operates_mine:** R J Mining Inc → No 1 (1); 1993-10-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James E  Stump et al → No 1 (1); 1993-10-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James E  Stump et al → R J Mining Inc; 1993-10-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Randall  Stump et al → R J Mining Inc; 1993-10-20 to current/open; source msha-controller-operator-history