# Relationship history for MSHA mine 4403707

Current hierarchy: **Jerry  Skeens; Eddie  Skeens → Falcon Coal Corp → #1**

- 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:** Merritt Jerry L → #1; 1974-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Shady Branch Coal Company Inc → #1; 1974-01-01 to 1975-02-09; source msha-controller-operator-history
- **controller_controls_mine:** Shady Branch Coal Company Inc → #1; 1974-01-01 to 1975-07-13; source msha-controller-operator-history
- **controller_controls_operator:** Shady Branch Coal Company Inc → Shady Branch Coal Company Inc; 1974-01-01 to 1975-02-09; source msha-controller-operator-history
- **operator_operates_mine:** Sandy Ridge Coal Company → #1; 1975-02-10 to 1980-05-21; source msha-controller-operator-history
- **controller_controls_mine:** Salyers Bernard Et Al → #1; 1975-02-10 to 1980-05-21; source msha-controller-operator-history
- **controller_controls_operator:** Salyers Bernard Et Al → Sandy Ridge Coal Company; 1975-02-10 to 1980-05-21; source msha-controller-operator-history
- **operator_operates_mine:** Solid Fuel Company → #1; 1980-05-22 to 1987-06-18; source msha-controller-operator-history
- **controller_controls_operator:** Merritt Jerry L → Solid Fuel Company; 1980-05-22 to 1987-06-18; source msha-controller-operator-history
- **operator_operates_mine:** Falcon Coal Corp → #1; 1987-06-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jerry  Skeens  et al → #1; 1987-06-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerry  Skeens  et al → Falcon Coal Corp; 1987-06-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eddie  Skeens  et al → Falcon Coal Corp; 1987-06-19 to current/open; source msha-controller-operator-history