# Relationship history for MSHA mine 0403065

Current hierarchy: **Michael M Miller → Original Sixteen to One Mine, Inc. → Plumbago 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

- **operator_operates_mine:** Plumbago Mines Inc → Plumbago Mine; 1950-01-01 to 1980-12-11; source msha-controller-operator-history
- **controller_controls_mine:** Christman Earl → Plumbago Mine; 1950-01-01 to 1980-12-11; source msha-controller-operator-history
- **controller_controls_operator:** Christman Earl → Plumbago Mines Inc; 1950-01-01 to 1980-12-11; source msha-controller-operator-history
- **controller_controls_mine:** Michael M Miller → Plumbago Mine; 1979-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Plumbago Mines Inc → Plumbago Mine; 1980-12-12 to 1981-04-27; source msha-controller-operator-history
- **controller_controls_mine:** Hines Thomas K → Plumbago Mine; 1980-12-12 to 1986-12-15; source msha-controller-operator-history
- **controller_controls_operator:** Hines Thomas K → Plumbago Mines Inc; 1980-12-12 to 1981-04-27; source msha-controller-operator-history
- **operator_operates_mine:** Amber Mining Consultants Inc → Plumbago Mine; 1981-04-28 to 1982-05-26; source msha-controller-operator-history
- **controller_controls_mine:** Kent Charles → Plumbago Mine; 1981-04-28 to 1982-05-26; source msha-controller-operator-history
- **controller_controls_operator:** Kent Charles → Amber Mining Consultants Inc; 1981-04-28 to 1982-05-26; source msha-controller-operator-history
- **operator_operates_mine:** Christman Mining Enterprises → Plumbago Mine; 1982-05-27 to 1983-06-07; source msha-controller-operator-history
- **controller_controls_mine:** Christman Errol-Plumbago Mines Inc Et Al → Plumbago Mine; 1982-05-27 to 1983-06-07; source msha-controller-operator-history
- **controller_controls_operator:** Christman Errol-Plumbago Mines Inc Et Al → Christman Mining Enterprises; 1982-05-27 to 1983-06-07; source msha-controller-operator-history
- **operator_operates_mine:** Plumbago Mining Corp → Plumbago Mine; 1983-06-08 to 1983-09-21; source msha-controller-operator-history
- **controller_controls_mine:** Hines Thomas K → Plumbago Mine; 1983-06-08 to 1983-09-21; source msha-controller-operator-history
- **controller_controls_operator:** Hines Thomas K → Plumbago Mining Corp; 1983-06-08 to 1983-09-21; source msha-controller-operator-history
- **operator_operates_mine:** Underground Development Corp → Plumbago Mine; 1983-09-22 to 1986-12-15; source msha-controller-operator-history
- **controller_controls_mine:** Callaghan Dan W → Plumbago Mine; 1983-09-22 to 1986-12-15; source msha-controller-operator-history
- **controller_controls_operator:** Callaghan Dan W → Underground Development Corp; 1983-09-22 to 1986-12-15; source msha-controller-operator-history
- **operator_operates_mine:** Norsemont Mining Inc → Plumbago Mine; 1986-12-16 to 1996-10-27; source msha-controller-operator-history
- **controller_controls_mine:** Lorntzsen Egil H → Plumbago Mine; 1986-12-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lorntzsen Egil H → Norsemont Mining Inc; 1986-12-16 to 1996-10-27; source msha-controller-operator-history
- **operator_operates_mine:** Plumbco → Plumbago Mine; 1996-10-28 to 2014-05-05; source msha-controller-operator-history
- **controller_controls_mine:** Strauss Kathy & Domonic Hudson Et Al → Plumbago Mine; 1996-10-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Strauss Kathy & Domonic Hudson Et Al → Plumbco; 1996-10-28 to 2014-05-05; source msha-controller-operator-history
- **operator_operates_mine:** Original Sixteen to One Mine, Inc. → Plumbago Mine; 2014-05-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael M Miller → Original Sixteen to One Mine, Inc.; 2014-05-06 to current/open; source msha-controller-operator-history