# Relationship history for MSHA mine 1518652

Current hierarchy: **Pamela J  Allen → Sly Branch Energy Inc → #6**

- 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:** Pamela J  Allen → #6; 1999-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Sly Branch Energy Inc → #6; 2003-07-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pamela J  Allen → Sly Branch Energy Inc; 2003-07-28 to current/open; source msha-controller-operator-history