# Relationship history for MSHA mine 1510534

Current hierarchy: **Neal Pete → Five States Coal Sales Inc → #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:** Smith & Owens Elkhorn Coal Corp → #1; 1977-06-01 to 1980-03-18; source msha-controller-operator-history
- **controller_controls_mine:** Owens Mark → #1; 1977-06-01 to 1980-03-18; source msha-controller-operator-history
- **controller_controls_operator:** Owens Mark → Smith & Owens Elkhorn Coal Corp; 1977-06-01 to 1980-03-18; source msha-controller-operator-history
- **operator_operates_mine:** Pierre Mining Corp → #1; 1980-03-19 to 1980-07-01; source msha-controller-operator-history
- **controller_controls_mine:** Stumbo Ivan → #1; 1980-03-19 to 1980-07-01; source msha-controller-operator-history
- **controller_controls_operator:** Stumbo Ivan → Pierre Mining Corp; 1980-03-19 to 1980-07-01; source msha-controller-operator-history
- **operator_operates_mine:** Five States Coal Sales Inc → #1; 1980-07-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Neal Pete → #1; 1980-07-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Neal Pete → Five States Coal Sales Inc; 1980-07-02 to current/open; source msha-controller-operator-history