# Relationship history for MSHA mine 4606265

Current hierarchy: **Edward A  Asbury → Raw Coal Mining Company, Inc. → Sewell Mine B**

- 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:** Massey Energy Company → Sewell Mine B; 1976-01-07 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Simron Fuel Coal Company → Sewell Mine B; 1980-11-01 to 1986-03-23; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Simron Fuel Coal Company; 1980-11-01 to 1986-03-23; source msha-controller-operator-history
- **controller_controls_mine:** Ted  Osborne  et al → Sewell Mine B; 1985-09-09 to 1990-01-30; source msha-controller-operator-history
- **operator_operates_mine:** Soho Coal Company Inc → Sewell Mine B; 1986-03-24 to 1987-09-24; source msha-controller-operator-history
- **controller_controls_operator:** Ted  Osborne  et al → Soho Coal Company Inc; 1986-03-24 to 1987-09-24; source msha-controller-operator-history
- **operator_operates_mine:** Rocky I Inc → Sewell Mine B; 1987-09-25 to 1988-06-30; source msha-controller-operator-history
- **controller_controls_mine:** West Roy → Sewell Mine B; 1987-09-25 to 1988-06-30; source msha-controller-operator-history
- **controller_controls_operator:** West Roy → Rocky I Inc; 1987-09-25 to 1988-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Emma Mining Inc → Sewell Mine B; 1988-07-01 to 1990-01-30; source msha-controller-operator-history
- **controller_controls_mine:** Jones David C → Sewell Mine B; 1988-07-01 to 1990-01-30; source msha-controller-operator-history
- **controller_controls_operator:** Jones David C → Emma Mining Inc; 1988-07-01 to 1990-01-30; source msha-controller-operator-history
- **operator_operates_mine:** Simron Fuel Coal Company → Sewell Mine B; 1990-01-31 to 2008-06-26; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Simron Fuel Coal Company; 1990-01-31 to 2008-06-26; source msha-controller-operator-history
- **controller_controls_mine:** Edward A  Asbury → Sewell Mine B; 1992-04-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kevin  Large → Sewell Mine B; 2001-06-14 to 2007-04-09; source msha-controller-operator-history
- **controller_controls_mine:** Edward A  Asbury → Sewell Mine B; 2007-04-10 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Shane Coal Company → Sewell Mine B; 2008-06-27 to 2009-07-23; source msha-controller-operator-history
- **controller_controls_operator:** Edward A  Asbury → Shane Coal Company; 2008-06-27 to 2009-07-23; source msha-controller-operator-history
- **controller_controls_operator:** Kevin  Large → Shane Coal Company; 2008-06-27 to 2007-04-09; source msha-controller-operator-history
- **operator_operates_mine:** Raw Coal Mining Company, Inc. → Sewell Mine B; 2009-07-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Edward A  Asbury → Raw Coal Mining Company, Inc.; 2009-07-24 to current/open; source msha-controller-operator-history