# Relationship history for MSHA mine 4300618

Current hierarchy: **Michael  O'Neil → M&M EXCAVATING, INC. → PELKEY 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

- **controller_controls_mine:** Michael  O'Neil → PELKEY PIT; 1990-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** George B. Tucker, Inc. → PELKEY PIT; 2004-10-26 to 2024-07-09; source msha-controller-operator-history
- **controller_controls_mine:** George B  Tucker → PELKEY PIT; 2004-10-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** George B  Tucker → George B. Tucker, Inc.; 2004-10-26 to 2024-07-09; source msha-controller-operator-history
- **operator_operates_mine:** M&M Excavating, Inc. → PELKEY PIT; 2024-07-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael  O'Neil → M&M Excavating, Inc.; 2024-07-10 to current/open; source msha-controller-operator-history