# Relationship history for MSHA mine 4604678

Current hierarchy: **David  Cline → Rock N Roll Coal Company Inc → Mine No 2 (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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Rose Branch Development Company → Mine No 2 (1); 1975-08-15 to 1978-03-21; source msha-controller-operator-history
- **controller_controls_mine:** Massey Energy Company → Mine No 2 (1); 1975-08-15 to 1978-03-21; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Rose Branch Development Company; 1975-08-15 to 1978-03-21; source msha-controller-operator-history
- **operator_operates_mine:** Rose Branch Development Company → Mine No 2 (1); 1978-03-22 to 1981-11-30; source msha-controller-operator-history
- **controller_controls_mine:** Voest-Alpine International Corp → Mine No 2 (1); 1978-03-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Voest-Alpine International Corp → Rose Branch Development Company; 1978-03-22 to 1981-11-30; source msha-controller-operator-history
- **operator_operates_mine:** Faith Mining Company → Mine No 2 (1); 1981-12-01 to 1988-03-10; source msha-controller-operator-history
- **controller_controls_mine:** William  Smith et al → Mine No 2 (1); 1981-12-01 to 1988-03-10; source msha-controller-operator-history
- **controller_controls_operator:** William  Smith et al → Faith Mining Company; 1981-12-01 to 1988-03-10; source msha-controller-operator-history
- **operator_operates_mine:** Casper Coals Inc → Mine No 2 (1); 1988-03-11 to 1988-09-08; source msha-controller-operator-history
- **controller_controls_mine:** Staten Roland → Mine No 2 (1); 1988-03-11 to 1988-09-08; source msha-controller-operator-history
- **controller_controls_operator:** Staten Roland → Casper Coals Inc; 1988-03-11 to 1988-09-08; source msha-controller-operator-history
- **operator_operates_mine:** Casper Coals Inc → Mine No 2 (1); 1988-09-09 to 1989-08-22; source msha-controller-operator-history
- **controller_controls_mine:** Trent Robert G → Mine No 2 (1); 1988-09-09 to 1989-08-22; source msha-controller-operator-history
- **controller_controls_operator:** Trent Robert G → Casper Coals Inc; 1988-09-09 to 1989-08-22; source msha-controller-operator-history
- **operator_operates_mine:** Blow Out Inc → Mine No 2 (1); 1989-08-23 to 1995-06-11; source msha-controller-operator-history
- **controller_controls_mine:** Dameron Elliot Et Al → Mine No 2 (1); 1989-08-23 to 1995-06-11; source msha-controller-operator-history
- **controller_controls_operator:** Dameron Elliot Et Al → Blow Out Inc; 1989-08-23 to 1995-06-11; source msha-controller-operator-history
- **controller_controls_mine:** David  Hopkins → Mine No 2 (1); 1995-01-23 to 1995-10-11; source msha-controller-operator-history
- **controller_controls_mine:** David  Cline → Mine No 2 (1); 1995-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** White Horse Mining Inc → Mine No 2 (1); 1995-06-12 to 1995-10-11; source msha-controller-operator-history
- **controller_controls_operator:** David  Hopkins → White Horse Mining Inc; 1995-06-12 to 1995-10-11; source msha-controller-operator-history
- **operator_operates_mine:** D-Max Energy Inc → Mine No 2 (1); 1995-10-12 to 1995-12-14; source msha-controller-operator-history
- **controller_controls_mine:** Morgan Deanna → Mine No 2 (1); 1995-10-12 to 1995-12-14; source msha-controller-operator-history
- **controller_controls_operator:** Morgan Deanna → D-Max Energy Inc; 1995-10-12 to 1995-12-14; source msha-controller-operator-history
- **operator_operates_mine:** D-Max Energy Inc → Mine No 2 (1); 1995-12-15 to 1996-03-14; source msha-controller-operator-history
- **controller_controls_mine:** Michael  Cline → Mine No 2 (1); 1995-12-15 to 1996-03-21; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Cline → D-Max Energy Inc; 1995-12-15 to 1996-03-14; source msha-controller-operator-history
- **operator_operates_mine:** Rock N Roll Coal Company Inc → Mine No 2 (1); 1996-03-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David  Cline → Rock N Roll Coal Company Inc; 1996-03-15 to current/open; source msha-controller-operator-history