# Relationship history for MSHA mine 1202368

Current hierarchy: **Aigner Jerry L → Jerry Aigner Construction, Inc. → Charter #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:** Gwenda L  Sellers Et Al → Charter #1; 1996-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** T & T Washing Co. Inc. → Charter #1; 2004-01-12 to 2017-10-24; source msha-controller-operator-history
- **controller_controls_operator:** Gwenda L  Sellers Et Al → T & T Washing Co. Inc.; 2004-01-12 to 2017-10-24; source msha-controller-operator-history
- **controller_controls_operator:** Eddie D  Tapp et al → T & T Washing Co. Inc.; 2004-01-12 to 2017-10-24; source msha-controller-operator-history
- **operator_operates_mine:** T&T Consulting, Inc. → Charter #1; 2017-10-25 to 2023-04-26; source msha-controller-operator-history
- **controller_controls_mine:** Robert S  Partenheimer et al → Charter #1; 2017-10-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert S  Partenheimer et al → T&T Consulting, Inc.; 2017-10-25 to 2023-04-26; source msha-controller-operator-history
- **controller_controls_operator:** Christopher L  Robling et al → T&T Consulting, Inc.; 2017-10-25 to 2023-04-26; source msha-controller-operator-history
- **operator_operates_mine:** Charter 1 → Charter #1; 2023-04-27 to 2026-01-25; source msha-controller-operator-history
- **controller_controls_mine:** Robert (Scott)  Partenheimer → Charter #1; 2023-04-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert (Scott)  Partenheimer → Charter 1; 2023-04-27 to 2026-01-25; source msha-controller-operator-history
- **operator_operates_mine:** Jerry Aigner Construction, Inc. → Charter #1; 2026-01-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Aigner Jerry L → Charter #1; 2026-01-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Aigner Jerry L → Jerry Aigner Construction, Inc.; 2026-01-26 to current/open; source msha-controller-operator-history