# Relationship history for MSHA mine 3401968

Current hierarchy: **Billy J  Gillham → Mule Creek Stone LLC → Mule Creek**

- 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:** Mule Creek Stone → Mule Creek; 2005-07-19 to 2019-04-09; source msha-controller-operator-history
- **controller_controls_mine:** Billy J  Gillham → Mule Creek; 2005-07-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Billy J  Gillham → Mule Creek Stone; 2005-07-19 to 2019-04-09; source msha-controller-operator-history
- **controller_controls_mine:** Billy J  Gillham → Mule Creek; 2018-08-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Mule Creek Stone LLC → Mule Creek; 2019-04-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Billy J  Gillham → Mule Creek Stone LLC; 2019-04-10 to current/open; source msha-controller-operator-history