# Relationship history for MSHA mine 1517044

Current hierarchy: **Alliance Resource Partners LP → Vision Mining, Inc. → Vision #9**

- 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:** Chevron Corporation → Vision #9; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Pittsburg & Midway Coal Mining Company → Vision #9; 1991-02-01 to 2000-05-11; source msha-controller-operator-history
- **controller_controls_operator:** Chevron Corporation → Pittsburg & Midway Coal Mining Company; 1991-02-01 to 2000-05-11; source msha-controller-operator-history
- **operator_operates_mine:** Cochise Coal Company Inc → Vision #9; 2000-05-12 to 2001-05-18; source msha-controller-operator-history
- **controller_controls_mine:** Chester  Thomas et al → Vision #9; 2000-05-12 to 2001-05-18; source msha-controller-operator-history
- **controller_controls_operator:** Chester  Thomas et al → Cochise Coal Company Inc; 2000-05-12 to 2001-05-18; source msha-controller-operator-history
- **operator_operates_mine:** Vision Mining, Inc. → Vision #9; 2001-05-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Chester M  Thomas → Vision #9; 2001-05-19 to 2012-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Chester M  Thomas → Vision Mining, Inc.; 2001-05-19 to 2012-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Alliance Resource Partners LP → Vision #9; 2012-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alliance Resource Partners LP → Vision Mining, Inc.; 2012-04-01 to current/open; source msha-controller-operator-history