# Relationship history for MSHA mine 5001504

Current hierarchy: **Chris  Jenks → APP Mining → APP Mining**

- 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:** Go-Fer Mining → APP Mining; 1986-06-01 to 1987-06-17; source msha-controller-operator-history
- **controller_controls_mine:** Snyder Bill → APP Mining; 1986-06-01 to 1987-06-17; source msha-controller-operator-history
- **controller_controls_operator:** Snyder Bill → Go-Fer Mining; 1986-06-01 to 1987-06-17; source msha-controller-operator-history
- **operator_operates_mine:** APP Mining → APP Mining; 1987-06-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bert  Pettigrew → APP Mining; 1987-06-18 to 2005-08-10; source msha-controller-operator-history
- **controller_controls_operator:** Bert  Pettigrew → APP Mining; 1987-06-18 to 2005-08-10; source msha-controller-operator-history
- **controller_controls_mine:** Chris  Jenks → APP Mining; 2005-08-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Chris  Jenks → APP Mining; 2005-08-11 to current/open; source msha-controller-operator-history