# Relationship history for MSHA mine 1517583

Current hierarchy: **Minerva Ruth  Mead → MRI Mining Incorporated → No 2**

- 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:** Westwood Energy Inc → No 2; 1994-08-01 to 1998-02-17; source msha-controller-operator-history
- **controller_controls_mine:** Jody  Samons → No 2; 1994-08-01 to 1998-02-17; source msha-controller-operator-history
- **controller_controls_operator:** Jody  Samons → Westwood Energy Inc; 1994-08-01 to 1998-02-17; source msha-controller-operator-history
- **operator_operates_mine:** Beth Rain Corp → No 2; 1998-02-18 to 1999-02-03; source msha-controller-operator-history
- **controller_controls_mine:** Jerry D  Boyd → No 2; 1998-02-18 to 1999-02-03; source msha-controller-operator-history
- **controller_controls_operator:** Jerry D  Boyd → Beth Rain Corp; 1998-02-18 to 1999-02-03; source msha-controller-operator-history
- **operator_operates_mine:** Sure Coal Inc → No 2; 1999-02-04 to 1999-08-01; source msha-controller-operator-history
- **controller_controls_mine:** Dana  Collins → No 2; 1999-02-04 to 1999-10-19; source msha-controller-operator-history
- **controller_controls_operator:** Dana  Collins → Sure Coal Inc; 1999-02-04 to 1999-08-01; source msha-controller-operator-history
- **operator_operates_mine:** Tristan Coal Company Inc → No 2; 1999-08-02 to 2001-05-06; source msha-controller-operator-history
- **controller_controls_mine:** Carson  Thacker → No 2; 1999-08-02 to 2001-07-19; source msha-controller-operator-history
- **controller_controls_operator:** Carson  Thacker → Tristan Coal Company Inc; 1999-08-02 to 2001-05-06; source msha-controller-operator-history
- **operator_operates_mine:** S & W Coal Inc → No 2; 2001-05-07 to 2001-07-26; source msha-controller-operator-history
- **controller_controls_mine:** Stallard  Boyd → No 2; 2001-05-07 to 2001-07-26; source msha-controller-operator-history
- **controller_controls_operator:** Stallard  Boyd → S & W Coal Inc; 2001-05-07 to 2001-07-26; source msha-controller-operator-history
- **controller_controls_mine:** Danny D Mead → No 2; 2001-07-20 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** N D O Coal Company Inc → No 2; 2001-07-27 to 2003-02-19; source msha-controller-operator-history
- **controller_controls_operator:** Danny D Mead → N D O Coal Company Inc; 2001-07-27 to 2003-02-19; source msha-controller-operator-history
- **operator_operates_mine:** MRI Mining Incorporated → No 2; 2003-02-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Minerva Ruth  Mead → No 2; 2003-02-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Minerva Ruth  Mead → MRI Mining Incorporated; 2003-02-20 to current/open; source msha-controller-operator-history