# Relationship history for MSHA mine 4608916

Current hierarchy: **Edward A  Asbury → Superior Processing, Inc. → Refuse Operation**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Sure Services Inc → Refuse Operation; 2001-09-01 to 2008-08-04; source msha-controller-operator-history
- **controller_controls_mine:** Barry  Karnes → Refuse Operation; 2001-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Barry  Karnes → Sure Services Inc; 2001-09-01 to 2008-08-04; source msha-controller-operator-history
- **controller_controls_mine:** D L (Jack)  Bowling → Refuse Operation; 2004-10-18 to 2008-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Edward A  Asbury → Refuse Operation; 2008-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Superior Processing, Inc. → Refuse Operation; 2008-08-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Edward A  Asbury → Superior Processing, Inc.; 2008-08-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** D L (Jack)  Bowling → Superior Processing, Inc.; 2008-08-05 to 2008-03-31; source msha-controller-operator-history