# Relationship history for MSHA mine 4606184

Current hierarchy: **C Greg  Cline → Jude Energy Inc → No2 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

- **operator_operates_mine:** Mar-Anns Mining Corp → No2 Mine; 1980-07-01 to 1987-06-14; source msha-controller-operator-history
- **controller_controls_mine:** Lugar William C → No2 Mine; 1980-07-01 to 1987-06-14; source msha-controller-operator-history
- **controller_controls_operator:** Lugar William C → Mar-Anns Mining Corp; 1980-07-01 to 1987-06-14; source msha-controller-operator-history
- **operator_operates_mine:** Oceana I Inc → No2 Mine; 1987-06-15 to 1988-08-21; source msha-controller-operator-history
- **controller_controls_mine:** Blankenship Harrison → No2 Mine; 1987-06-15 to 1988-08-21; source msha-controller-operator-history
- **controller_controls_operator:** Blankenship Harrison → Oceana I Inc; 1987-06-15 to 1988-08-21; source msha-controller-operator-history
- **controller_controls_mine:** Maynor Steve → No2 Mine; 1988-02-23 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jude Energy Inc → No2 Mine; 1988-08-22 to 1989-03-05; source msha-controller-operator-history
- **controller_controls_operator:** Maynor Steve → Jude Energy Inc; 1988-08-22 to 1989-03-05; source msha-controller-operator-history
- **operator_operates_mine:** Jude Energy Inc → No2 Mine; 1989-03-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** C Greg  Cline → No2 Mine; 1989-03-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** C Greg  Cline → Jude Energy Inc; 1989-03-06 to current/open; source msha-controller-operator-history