# Relationship history for MSHA mine 1518508

Current hierarchy: **Jamie L  Burkett; Teddy  Casebolt → B & C Energy, Inc. → No. 1**

- 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:** B & C Energy, Inc. → No. 1; 2002-01-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jamie L  Burkett  et al → No. 1; 2002-01-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jamie L  Burkett  et al → B & C Energy, Inc.; 2002-01-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Teddy  Casebolt  et al → B & C Energy, Inc.; 2002-01-28 to current/open; source msha-controller-operator-history