# Relationship history for MSHA mine 0103322

Current hierarchy: **Rodney  Mays → Quality Coal, Inc. → Pleasant Grove South**

- 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:** Mike  Bailey → Pleasant Grove South; 2001-12-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jon K  Ingle → Pleasant Grove South; 2004-12-31 to 2017-10-31; source msha-controller-operator-history
- **operator_operates_mine:** Bailey Excavating Company Inc → Pleasant Grove South; 2005-06-15 to 2006-06-27; source msha-controller-operator-history
- **controller_controls_operator:** Mike  Bailey → Bailey Excavating Company Inc; 2005-06-15 to 2006-06-27; source msha-controller-operator-history
- **operator_operates_mine:** Quality Coal, Inc. → Pleasant Grove South; 2006-06-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jon K  Ingle → Quality Coal, Inc.; 2006-06-28 to 2017-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Rodney  Mays → Pleasant Grove South; 2017-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rodney  Mays → Quality Coal, Inc.; 2017-11-01 to current/open; source msha-controller-operator-history