# Relationship history for MSHA mine 4606955

Current hierarchy: **S & P Holding Company Inc → Gauley Eagle Holdings Inc → Chestnut Mine**

- 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:** Occidental Petroleum Corp → Chestnut Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** R S W Coals Inc → Chestnut Mine; 1985-07-01 to 1986-03-03; source msha-controller-operator-history
- **controller_controls_mine:** Webb Raymond R → Chestnut Mine; 1985-07-01 to 1986-03-03; source msha-controller-operator-history
- **controller_controls_operator:** Webb Raymond R → R S W Coals Inc; 1985-07-01 to 1986-03-03; source msha-controller-operator-history
- **operator_operates_mine:** Expansion Energy Corp → Chestnut Mine; 1986-03-04 to 1986-08-07; source msha-controller-operator-history
- **controller_controls_mine:** Mack  Lester → Chestnut Mine; 1986-03-04 to 1986-08-07; source msha-controller-operator-history
- **controller_controls_operator:** Mack  Lester → Expansion Energy Corp; 1986-03-04 to 1986-08-07; source msha-controller-operator-history
- **operator_operates_mine:** Buffalo Land Company Inc → Chestnut Mine; 1986-08-08 to 1987-04-26; source msha-controller-operator-history
- **controller_controls_mine:** Thompson Robert → Chestnut Mine; 1986-08-08 to 1987-04-26; source msha-controller-operator-history
- **controller_controls_operator:** Thompson Robert → Buffalo Land Company Inc; 1986-08-08 to 1987-04-26; source msha-controller-operator-history
- **operator_operates_mine:** Island Creek Coal Company → Chestnut Mine; 1987-04-27 to 1995-11-30; source msha-controller-operator-history
- **controller_controls_operator:** Occidental Petroleum Corp → Island Creek Coal Company; 1987-04-27 to 1995-11-30; source msha-controller-operator-history
- **operator_operates_mine:** Gauley Eagle Holdings Inc → Chestnut Mine; 1995-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** S & P Holding Company Inc → Chestnut Mine; 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