# Relationship history for MSHA mine 1515472

Current hierarchy: **Fuson Ronnie → Mountain Coal Company → Mine #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

- **controller_controls_mine:** Fuson Lloyd → Mine #1; 1983-07-01 to 1987-02-18; source msha-controller-operator-history
- **controller_controls_mine:** Croley A J → Mine #1; 1984-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Becky Coal Corp → Mine #1; 1985-12-01 to 1986-05-01; source msha-controller-operator-history
- **controller_controls_operator:** Croley A J → Becky Coal Corp; 1985-12-01 to 1986-05-01; source msha-controller-operator-history
- **operator_operates_mine:** Fuson Coal Company → Mine #1; 1986-05-02 to 1987-02-18; source msha-controller-operator-history
- **controller_controls_operator:** Fuson Lloyd → Fuson Coal Company; 1986-05-02 to 1987-02-18; source msha-controller-operator-history
- **controller_controls_mine:** Fuson Ronnie → Mine #1; 1986-05-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Mountain Coal Company → Mine #1; 1987-02-19 to 1987-07-26; source msha-controller-operator-history
- **controller_controls_operator:** Fuson Ronnie → Mountain Coal Company; 1987-02-19 to 1987-07-26; source msha-controller-operator-history
- **operator_operates_mine:** Dan Bailey Enterprises Inc → Mine #1; 1987-07-27 to 1988-01-27; source msha-controller-operator-history
- **controller_controls_mine:** Bailey Dan → Mine #1; 1987-07-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bailey Dan → Dan Bailey Enterprises Inc; 1987-07-27 to 1988-01-27; source msha-controller-operator-history
- **operator_operates_mine:** M & R Coal Company → Mine #1; 1988-01-28 to 1989-05-08; source msha-controller-operator-history
- **controller_controls_mine:** Fuson Ronnie & Michael Warren → Mine #1; 1988-01-28 to 1989-05-08; source msha-controller-operator-history
- **controller_controls_operator:** Fuson Ronnie & Michael Warren → M & R Coal Company; 1988-01-28 to 1989-05-08; source msha-controller-operator-history
- **operator_operates_mine:** Mountain Coal Company → Mine #1; 1989-05-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Fuson Ronnie → Mountain Coal Company; 1989-05-09 to current/open; source msha-controller-operator-history