# Relationship history for MSHA mine 4605275

Current hierarchy: **Endicott Shelby R → Endicott Enterprises Inc → Endicott I**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Valiunas J K → Endicott I; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Douglas Pocahontas Coal Corp → Endicott I; 1976-08-13 to 1978-10-05; source msha-controller-operator-history
- **controller_controls_operator:** Valiunas J K → Douglas Pocahontas Coal Corp; 1976-08-13 to 1978-10-05; source msha-controller-operator-history
- **operator_operates_mine:** Douglas Pocahontas Coal Company → Endicott I; 1978-10-06 to 1992-08-02; source msha-controller-operator-history
- **controller_controls_mine:** Massey Energy Company → Endicott I; 1978-10-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Douglas Pocahontas Coal Company; 1978-10-06 to 1992-08-02; source msha-controller-operator-history
- **controller_controls_mine:** Raymond  Cline → Endicott I; 1990-01-29 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Amron Corp → Endicott I; 1992-08-03 to 1994-01-02; source msha-controller-operator-history
- **controller_controls_operator:** Raymond  Cline → Amron Corp; 1992-08-03 to 1994-01-02; source msha-controller-operator-history
- **operator_operates_mine:** Lumbar Inc → Endicott I; 1994-01-03 to 1994-02-28; source msha-controller-operator-history
- **controller_controls_mine:** Cline Frank → Endicott I; 1994-01-03 to 1997-07-27; source msha-controller-operator-history
- **controller_controls_operator:** Cline Frank → Lumbar Inc; 1994-01-03 to 1994-02-28; source msha-controller-operator-history
- **operator_operates_mine:** Endicott Enterprises Inc → Endicott I; 1994-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Endicott Shelby R → Endicott I; 1994-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Endicott Shelby R → Endicott Enterprises Inc; 1994-03-01 to current/open; source msha-controller-operator-history