# Relationship history for MSHA mine 4609156

Current hierarchy: **Howard J  Wells → Wells Auger Mining Inc. → Wells No 1 Auger**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Howard J  Wells → Wells No 1 Auger; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Robert  Williams et al → Wells No 1 Auger; 1991-08-01 to 2010-07-25; source msha-controller-operator-history
- **operator_operates_mine:** Bundy Auger Mining Inc → Wells No 1 Auger; 2006-03-23 to 2006-07-24; source msha-controller-operator-history
- **controller_controls_operator:** Robert  Williams et al → Bundy Auger Mining Inc; 2006-03-23 to 2006-07-24; source msha-controller-operator-history
- **controller_controls_operator:** David D  Bundy et al → Bundy Auger Mining Inc; 2006-03-23 to 2006-07-24; source msha-controller-operator-history
- **operator_operates_mine:** Wells Auger Mining Inc. → Wells No 1 Auger; 2006-07-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Howard J  Wells → Wells Auger Mining Inc.; 2006-07-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Perian  Salviola et al → Wells No 1 Auger; 2010-07-26 to 2012-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Perian  Salviola et al → Bundy Auger Mining Inc; 2010-07-26 to 2006-07-24; source msha-controller-operator-history
- **controller_controls_operator:** David D  Bundy et al → Bundy Auger Mining Inc; 2010-07-26 to 2006-07-24; source msha-controller-operator-history
- **controller_controls_mine:** OHA Investment Corporation et al → Wells No 1 Auger; 2013-01-01 to 2016-06-27; source msha-controller-operator-history
- **controller_controls_operator:** OHA Investment Corporation et al → Bundy Auger Mining Inc; 2013-01-01 to 2006-07-24; source msha-controller-operator-history
- **controller_controls_operator:** David D  Bundy et al → Bundy Auger Mining Inc; 2013-01-01 to 2006-07-24; source msha-controller-operator-history
- **controller_controls_mine:** David D  Bundy → Wells No 1 Auger; 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 2006-07-24; source msha-controller-operator-history