# Relationship history for MSHA mine 1517516

Current hierarchy: **Street Clifton → C & G Energy Inc → No 2**

- 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:** Gary D  Fields → No 2; 1986-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Street Clifton → No 2; 1989-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Topper Coal Company Inc → No 2; 1994-03-01 to 1995-06-13; source msha-controller-operator-history
- **controller_controls_operator:** Gary D  Fields → Topper Coal Company Inc; 1994-03-01 to 1995-06-13; source msha-controller-operator-history
- **operator_operates_mine:** Shawna Lea Coal Company Inc → No 2; 1995-06-14 to 1996-05-16; source msha-controller-operator-history
- **controller_controls_mine:** Peters Johnny → No 2; 1995-06-14 to 1996-07-01; source msha-controller-operator-history
- **controller_controls_operator:** Peters Johnny → Shawna Lea Coal Company Inc; 1995-06-14 to 1996-05-16; source msha-controller-operator-history
- **operator_operates_mine:** C & G Energy Inc → No 2; 1996-05-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Street Clifton → C & G Energy Inc; 1996-05-17 to current/open; source msha-controller-operator-history