# Relationship history for MSHA mine 1515392

Current hierarchy: **Dawson Fred → Steven Lee Enterprises → 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:** Meade Muncie Jr → No 2; 1982-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Dawson Fred → No 2; 1984-04-30 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Steven Lee Enterprises → No 2; 1985-10-01 to 1986-01-21; source msha-controller-operator-history
- **controller_controls_operator:** Dawson Fred → Steven Lee Enterprises; 1985-10-01 to 1986-01-21; source msha-controller-operator-history
- **operator_operates_mine:** L Clark Energy Inc → No 2; 1986-01-22 to 1986-07-27; source msha-controller-operator-history
- **controller_controls_mine:** Clark Leonard → No 2; 1986-01-22 to 1986-07-27; source msha-controller-operator-history
- **controller_controls_operator:** Clark Leonard → L Clark Energy Inc; 1986-01-22 to 1986-07-27; source msha-controller-operator-history
- **operator_operates_mine:** M & M Extraction Inc → No 2; 1986-07-28 to 1987-01-05; source msha-controller-operator-history
- **controller_controls_operator:** Meade Muncie Jr → M & M Extraction Inc; 1986-07-28 to 1987-01-05; source msha-controller-operator-history
- **operator_operates_mine:** Little D Coal Company Inc → No 2; 1987-01-06 to 1987-10-29; source msha-controller-operator-history
- **controller_controls_mine:** Dianna  Meade → No 2; 1987-01-06 to 1992-09-22; source msha-controller-operator-history
- **controller_controls_operator:** Dianna  Meade → Little D Coal Company Inc; 1987-01-06 to 1987-10-29; source msha-controller-operator-history
- **operator_operates_mine:** Steven Lee Enterprises → No 2; 1987-10-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dawson Fred → Steven Lee Enterprises; 1987-10-30 to current/open; source msha-controller-operator-history