# Relationship history for MSHA mine 3602685

Current hierarchy: **John P  Garcia → Genesis Inc → Jenners Plant**

- 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:** Coal Junction Coal Company Inc → Jenners Plant; 1950-01-01 to 1978-01-08; source msha-controller-operator-history
- **controller_controls_mine:** Critchfield N S → Jenners Plant; 1950-01-01 to 1978-01-08; source msha-controller-operator-history
- **controller_controls_operator:** Critchfield N S → Coal Junction Coal Company Inc; 1950-01-01 to 1978-01-08; source msha-controller-operator-history
- **operator_operates_mine:** Coal Junction Coal Company → Jenners Plant; 1978-01-09 to 1985-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Donovan Construction Company → Jenners Plant; 1978-01-09 to 1985-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Donovan Construction Company → Coal Junction Coal Company; 1978-01-09 to 1985-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Coal Junction Coal Company Inc → Jenners Plant; 1985-07-01 to 1987-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Dixon Russell-Millard D Thomas Et Al → Jenners Plant; 1985-07-01 to 1987-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Dixon Russell-Millard D Thomas Et Al → Coal Junction Coal Company Inc; 1985-07-01 to 1987-12-31; source msha-controller-operator-history
- **controller_controls_mine:** David C  Klementik  et al → Jenners Plant; 1986-03-14 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Coal Junction Coal Company Inc → Jenners Plant; 1988-01-01 to 1992-07-16; source msha-controller-operator-history
- **controller_controls_mine:** Debra  Buchleitner → Jenners Plant; 1988-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Debra  Buchleitner → Coal Junction Coal Company Inc; 1988-01-01 to 1992-07-16; source msha-controller-operator-history
- **controller_controls_mine:** John P  Garcia et al → Jenners Plant; 1990-09-04 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Solar Fuel Company Inc → Jenners Plant; 1992-07-17 to 1994-10-24; source msha-controller-operator-history
- **controller_controls_operator:** David C  Klementik  et al → Solar Fuel Company Inc; 1992-07-17 to 1994-10-24; source msha-controller-operator-history
- **operator_operates_mine:** Genesis Inc → Jenners Plant; 1994-10-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John P  Garcia et al → Genesis Inc; 1994-10-25 to current/open; source msha-controller-operator-history