# Relationship history for MSHA mine 1517412

Current hierarchy: **Jerry  Volk; Bob  Bays → Dusty Diamond Co., Inc. → 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:** Stanley W Osborne → 1; 1990-06-19 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Stoney Mountain Mining Inc → 1; 1993-06-01 to 1995-05-08; source msha-controller-operator-history
- **controller_controls_mine:** Coleman Roy Darrell → 1; 1993-06-01 to 1995-05-08; source msha-controller-operator-history
- **controller_controls_operator:** Coleman Roy Darrell → Stoney Mountain Mining Inc; 1993-06-01 to 1995-05-08; source msha-controller-operator-history
- **operator_operates_mine:** Joshco Mining Inc → 1; 1995-05-09 to 1995-12-13; source msha-controller-operator-history
- **controller_controls_operator:** Stanley W Osborne → Joshco Mining Inc; 1995-05-09 to 1995-12-13; source msha-controller-operator-history
- **operator_operates_mine:** Backwoods Mining Inc → 1; 1995-12-14 to 1996-06-18; source msha-controller-operator-history
- **controller_controls_mine:** Hall Clemit → 1; 1995-12-14 to 1996-06-18; source msha-controller-operator-history
- **controller_controls_operator:** Hall Clemit → Backwoods Mining Inc; 1995-12-14 to 1996-06-18; source msha-controller-operator-history
- **operator_operates_mine:** Pine Mountain Coal Inc → 1; 1996-06-19 to 2000-06-21; source msha-controller-operator-history
- **controller_controls_mine:** Heflin William T → 1; 1996-06-19 to 2000-06-21; source msha-controller-operator-history
- **controller_controls_operator:** Heflin William T → Pine Mountain Coal Inc; 1996-06-19 to 2000-06-21; source msha-controller-operator-history
- **operator_operates_mine:** Eastern Star Coal Corp → 1; 2000-06-22 to 2004-02-29; source msha-controller-operator-history
- **controller_controls_mine:** James P  Lowe → 1; 2000-06-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James P  Lowe → Eastern Star Coal Corp; 2000-06-22 to 2004-02-29; source msha-controller-operator-history
- **operator_operates_mine:** Dusty Diamond Co., Inc. → 1; 2004-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jerry  Volk  et al → 1; 2004-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerry  Volk  et al → Dusty Diamond Co., Inc.; 2004-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bob  Bays  et al → Dusty Diamond Co., Inc.; 2004-03-01 to current/open; source msha-controller-operator-history