# Relationship history for MSHA mine 0901034

Current hierarchy: **Tom  Oglesby → Keystone Memorials Inc → Midnight Blue**

- 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:** Gold Eagle Quarries Inc → Midnight Blue; 1988-10-01 to 1990-09-29; source msha-controller-operator-history
- **controller_controls_mine:** James A  Adams  et al → Midnight Blue; 1988-10-01 to 2005-07-09; source msha-controller-operator-history
- **controller_controls_operator:** James A  Adams  et al → Gold Eagle Quarries Inc; 1988-10-01 to 1990-09-29; source msha-controller-operator-history
- **operator_operates_mine:** Rowan Granite Quarry Inc → Midnight Blue; 1990-09-30 to 1994-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Destag Ag & Lan International Inc → Midnight Blue; 1990-09-30 to 2004-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Destag Ag & Lan International Inc → Rowan Granite Quarry Inc; 1990-09-30 to 1994-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Keystone Memorials Inc → Midnight Blue; 1994-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Tom  Oglesby → Midnight Blue; 1994-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tom  Oglesby → Keystone Memorials Inc; 1994-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Best Cheer USA → Midnight Blue; 2005-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Best Cheer USA → Rowan Granite Quarry Inc; 2005-01-01 to 1994-03-31; source msha-controller-operator-history
- **controller_controls_mine:** James Anthony  Adams II → Midnight Blue; 2005-07-10 to 2014-03-23; source msha-controller-operator-history
- **controller_controls_operator:** James Anthony  Adams II → Gold Eagle Quarries Inc; 2005-07-10 to 1990-09-29; source msha-controller-operator-history
- **controller_controls_mine:** James A  Adams  et al → Midnight Blue; 2014-03-24 to 2016-06-30; source msha-controller-operator-history
- **controller_controls_operator:** James A  Adams  et al → Gold Eagle Quarries Inc; 2014-03-24 to 1990-09-29; source msha-controller-operator-history
- **controller_controls_mine:** William F  Bryant → Midnight Blue; 2016-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William F  Bryant → Gold Eagle Quarries Inc; 2016-07-01 to 1990-09-29; source msha-controller-operator-history