# Relationship history for MSHA mine 1512305

Current hierarchy: **Meade Muncie Jr → M & M Extraction Inc → No 2 Mine**

- 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:** Leonard  Hall → No 2 Mine; 1976-09-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Music Tom Ed → No 2 Mine; 1977-08-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Johnson Burl → No 2 Mine; 1979-09-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** L & H Mining Company Inc → No 2 Mine; 1980-04-01 to 1980-07-17; source msha-controller-operator-history
- **controller_controls_operator:** Leonard  Hall → L & H Mining Company Inc; 1980-04-01 to 1980-07-17; source msha-controller-operator-history
- **operator_operates_mine:** Scotch Coal Company Inc → No 2 Mine; 1980-07-18 to 1981-04-01; source msha-controller-operator-history
- **controller_controls_operator:** Music Tom Ed → Scotch Coal Company Inc; 1980-07-18 to 1981-04-01; source msha-controller-operator-history
- **operator_operates_mine:** Spade Mining Company → No 2 Mine; 1981-04-02 to 1981-07-19; source msha-controller-operator-history
- **controller_controls_mine:** Music Billy P → No 2 Mine; 1981-04-02 to 1981-07-19; source msha-controller-operator-history
- **controller_controls_operator:** Music Billy P → Spade Mining Company; 1981-04-02 to 1981-07-19; source msha-controller-operator-history
- **operator_operates_mine:** Little Bit Coal Enterprises Inc → No 2 Mine; 1981-07-20 to 1984-06-04; source msha-controller-operator-history
- **controller_controls_operator:** Johnson Burl → Little Bit Coal Enterprises Inc; 1981-07-20 to 1984-06-04; source msha-controller-operator-history
- **controller_controls_mine:** Meade Muncie Jr → No 2 Mine; 1982-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** M & M Extraction Inc → No 2 Mine; 1984-06-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Meade Muncie Jr → M & M Extraction Inc; 1984-06-05 to current/open; source msha-controller-operator-history