# Relationship history for MSHA mine 2200711

Current hierarchy: **Steve  Salkind; Mort  Salkind → Sabal Corp → HILL PIT**

- 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:** Sabal Corp → HILL PIT; 1999-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mort  Salkind et al → HILL PIT; 1999-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mort  Salkind et al → Sabal Corp; 1999-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steve  Salkind et al → Sabal Corp; 1999-04-01 to current/open; source msha-controller-operator-history