# Relationship history for MSHA mine 4608726

Current hierarchy: **James E  Trent → Century Energy Corporation → Still Run No. 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:** Chris  Cline → Still Run No. 4; 1996-02-03 to 2000-03-14; source msha-controller-operator-history
- **operator_operates_mine:** Riverside Energy Inc → Still Run No. 4; 1998-08-01 to 1998-09-06; source msha-controller-operator-history
- **controller_controls_mine:** R R D Inc → Still Run No. 4; 1998-08-01 to 2000-12-31; source msha-controller-operator-history
- **controller_controls_operator:** R R D Inc → Riverside Energy Inc; 1998-08-01 to 1998-09-06; source msha-controller-operator-history
- **operator_operates_mine:** Speed Mining Inc → Still Run No. 4; 1998-09-07 to 2000-03-14; source msha-controller-operator-history
- **controller_controls_operator:** Chris  Cline → Speed Mining Inc; 1998-09-07 to 2000-03-14; source msha-controller-operator-history
- **controller_controls_mine:** Luther  Bell → Still Run No. 4; 1998-10-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Bell Holding Inc → Still Run No. 4; 2000-03-15 to 2000-08-30; source msha-controller-operator-history
- **controller_controls_operator:** Luther  Bell → Bell Holding Inc; 2000-03-15 to 2000-08-30; source msha-controller-operator-history
- **operator_operates_mine:** Century Energy Corporation → Still Run No. 4; 2000-08-31 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James E  Trent → Still Run No. 4; 2000-08-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James E  Trent → Century Energy Corporation; 2000-08-31 to current/open; source msha-controller-operator-history