# Relationship history for MSHA mine 1517679

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

- 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

- **controller_controls_mine:** Taylor Fields Et Al → Sly Branch Energy Inc; 1981-09-17 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** F Taylor Mining Corp → Sly Branch Energy Inc; 1995-05-01 to 1999-04-06; source msha-controller-operator-history
- **controller_controls_operator:** Taylor Fields Et Al → F Taylor Mining Corp; 1995-05-01 to 1999-04-06; source msha-controller-operator-history
- **controller_controls_mine:** Pamela J  Allen → Sly Branch Energy Inc; 1999-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Sly Branch Energy Inc → Sly Branch Energy Inc; 1999-04-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pamela J  Allen → Sly Branch Energy Inc; 1999-04-07 to current/open; source msha-controller-operator-history