# Relationship history for MSHA mine 4608540

Current hierarchy: **Jimmy  Williams → K & J Energy Inc → 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

- **operator_operates_mine:** R C O Enterprises Inc → Mine No 1; 1995-11-01 to 1998-09-20; source msha-controller-operator-history
- **controller_controls_mine:** Clark Randy H → Mine No 1; 1995-11-01 to 1998-09-20; source msha-controller-operator-history
- **controller_controls_operator:** Clark Randy H → R C O Enterprises Inc; 1995-11-01 to 1998-09-20; source msha-controller-operator-history
- **controller_controls_mine:** Eddie W  Foster → Mine No 1; 1998-04-01 to 2000-07-09; source msha-controller-operator-history
- **operator_operates_mine:** Southern Gold Mining Inc → Mine No 1; 1998-09-21 to 2000-07-09; source msha-controller-operator-history
- **controller_controls_operator:** Eddie W  Foster → Southern Gold Mining Inc; 1998-09-21 to 2000-07-09; source msha-controller-operator-history
- **operator_operates_mine:** K & J Energy Inc → Mine No 1; 2000-07-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jimmy  Williams et al → Mine No 1; 2000-07-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jimmy  Williams et al → K & J Energy Inc; 2000-07-10 to current/open; source msha-controller-operator-history