# Relationship history for MSHA mine 4609330

Current hierarchy: **John Robert  Nichol; Todd Wayne  Nichol → Nichol Auger Mining, LLC → Nichol Auger 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:** David D  Bundy et al → Nichol Auger Mine; 1991-08-01 to 2010-07-25; source msha-controller-operator-history
- **operator_operates_mine:** Bundy Auger Mining Inc → Nichol Auger Mine; 2009-03-02 to 2010-06-23; source msha-controller-operator-history
- **controller_controls_operator:** David D  Bundy et al → Bundy Auger Mining Inc; 2009-03-02 to 2010-06-23; source msha-controller-operator-history
- **controller_controls_operator:** Robert  Williams et al → Bundy Auger Mining Inc; 2009-03-02 to 2010-06-23; source msha-controller-operator-history
- **operator_operates_mine:** Nichol Auger Mining, LLC → Nichol Auger Mine; 2010-06-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John Robert  Nichol et al → Nichol Auger Mine; 2010-06-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John Robert  Nichol et al → Nichol Auger Mining, LLC; 2010-06-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Todd Wayne  Nichol et al → Nichol Auger Mining, LLC; 2010-06-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** David D  Bundy et al → Nichol Auger Mine; 2010-07-26 to 2012-12-31; source msha-controller-operator-history
- **controller_controls_operator:** David D  Bundy et al → Bundy Auger Mining Inc; 2010-07-26 to 2010-06-23; source msha-controller-operator-history
- **controller_controls_operator:** Perian  Salviola et al → Bundy Auger Mining Inc; 2010-07-26 to 2010-06-23; source msha-controller-operator-history
- **controller_controls_mine:** David D  Bundy et al → Nichol Auger Mine; 2013-01-01 to 2016-06-27; source msha-controller-operator-history
- **controller_controls_operator:** David D  Bundy et al → Bundy Auger Mining Inc; 2013-01-01 to 2010-06-23; source msha-controller-operator-history
- **controller_controls_operator:** OHA Investment Corporation et al → Bundy Auger Mining Inc; 2013-01-01 to 2010-06-23; source msha-controller-operator-history
- **controller_controls_mine:** David D  Bundy → Nichol Auger Mine; 2016-06-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David D  Bundy → Bundy Auger Mining Inc; 2016-06-28 to 2010-06-23; source msha-controller-operator-history