# Relationship history for MSHA mine 4400419

Current hierarchy: **Sullivan Darius L & James R → S & S Fuels → #1 Tipple**

- 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:** Bull Creek Coal & Dock Company → #1 Tipple; 1950-01-01 to 1984-05-21; source msha-controller-operator-history
- **controller_controls_mine:** Belcher Earl Et Al → #1 Tipple; 1950-01-01 to 1984-05-21; source msha-controller-operator-history
- **controller_controls_operator:** Belcher Earl Et Al → Bull Creek Coal & Dock Company; 1950-01-01 to 1984-05-21; source msha-controller-operator-history
- **operator_operates_mine:** S & S Fuels → #1 Tipple; 1984-05-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Sullivan Darius L & James R → #1 Tipple; 1984-05-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sullivan Darius L & James R → S & S Fuels; 1984-05-22 to current/open; source msha-controller-operator-history