# Relationship history for MSHA mine 3002294

Current hierarchy: **Charles  Friedman → CHARLES FRIEDMAN EXCAVATING INC → STILES PIT**

- 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:** Arthur M Stiles → STILES PIT; 1978-03-09 to 1993-05-24; source msha-controller-operator-history
- **controller_controls_mine:** Arthur M  Stiles → STILES PIT; 1978-03-09 to 1993-05-24; source msha-controller-operator-history
- **controller_controls_operator:** Arthur M  Stiles → Arthur M Stiles; 1978-03-09 to 1993-05-24; source msha-controller-operator-history
- **operator_operates_mine:** Frank Parrish → STILES PIT; 1993-05-25 to 1997-04-14; source msha-controller-operator-history
- **controller_controls_mine:** Frank  Parrish → STILES PIT; 1993-05-25 to 1997-04-14; source msha-controller-operator-history
- **controller_controls_operator:** Frank  Parrish → Frank Parrish; 1993-05-25 to 1997-04-14; source msha-controller-operator-history
- **operator_operates_mine:** Charles Friedman Excavating Inc → STILES PIT; 1997-04-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Charles  Friedman → STILES PIT; 1997-04-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles  Friedman → Charles Friedman Excavating Inc; 1997-04-15 to current/open; source msha-controller-operator-history