# Relationship history for MSHA mine 4604156

Current hierarchy: **Richard H  Abraham → Talon Resources Inc → Orion 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

- **controller_controls_mine:** Richard H  Abraham et al → Orion Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Pittston Company → Orion Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Elkay Mining Company → Orion Mine; 1974-01-01 to 1989-10-29; source msha-controller-operator-history
- **controller_controls_operator:** Pittston Company → Elkay Mining Company; 1974-01-01 to 1989-10-29; source msha-controller-operator-history
- **controller_controls_mine:** Ashland Inc et al → Orion Mine; 1987-05-19 to 2005-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Arch Of West Virginia → Orion Mine; 1989-10-30 to 1990-01-22; source msha-controller-operator-history
- **controller_controls_operator:** Ashland Inc et al → Arch Of West Virginia; 1989-10-30 to 1990-01-22; source msha-controller-operator-history
- **operator_operates_mine:** Talon Resources Inc → Orion Mine; 1990-01-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard H  Abraham et al → Talon Resources Inc; 1990-01-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Magnum Coal Company → Orion Mine; 2006-01-01 to 2008-07-22; source msha-controller-operator-history
- **controller_controls_operator:** Magnum Coal Company → Arch Of West Virginia; 2006-01-01 to 1990-01-22; source msha-controller-operator-history
- **controller_controls_mine:** Patriot Coal Corporation → Orion Mine; 2008-07-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Patriot Coal Corporation → Arch Of West Virginia; 2008-07-23 to 1990-01-22; source msha-controller-operator-history