# Relationship history for MSHA mine 4603184

Current hierarchy: **S & P Holding Company Inc → Gauley Eagle Holdings Inc → Tioga Strip**

- 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:** Island Creek Coal Company → Tioga Strip; 1950-01-01 to 1986-04-27; source msha-controller-operator-history
- **controller_controls_mine:** Occidental Petroleum Corp → Tioga Strip; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Occidental Petroleum Corp → Island Creek Coal Company; 1950-01-01 to 1986-04-27; source msha-controller-operator-history
- **operator_operates_mine:** Magnum Mining Company Inc → Tioga Strip; 1986-04-28 to 1986-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Coleman Russell D → Tioga Strip; 1986-04-28 to 1986-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Coleman Russell D → Magnum Mining Company Inc; 1986-04-28 to 1986-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Magnum Mining Company Inc → Tioga Strip; 1986-10-01 to 1987-04-21; source msha-controller-operator-history
- **controller_controls_mine:** Muse Scott → Tioga Strip; 1986-10-01 to 1987-04-21; source msha-controller-operator-history
- **controller_controls_operator:** Muse Scott → Magnum Mining Company Inc; 1986-10-01 to 1987-04-21; source msha-controller-operator-history
- **operator_operates_mine:** Island Creek Coal Company → Tioga Strip; 1987-04-22 to 1995-11-30; source msha-controller-operator-history
- **controller_controls_operator:** Occidental Petroleum Corp → Island Creek Coal Company; 1987-04-22 to 1995-11-30; source msha-controller-operator-history
- **operator_operates_mine:** Gauley Eagle Holdings Inc → Tioga Strip; 1995-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** S & P Holding Company Inc → Tioga Strip; 1995-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** S & P Holding Company Inc → Gauley Eagle Holdings Inc; 1995-12-01 to current/open; source msha-controller-operator-history