# Relationship history for MSHA mine 1517077

Current hierarchy: **Douglas  Warriner → Montana Bakken, LLC → RB #5**

- 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:** Benjamin R.  Bennett → RB #5; 1981-11-03 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Manalapan Mining Company Inc → RB #5; 1991-05-01 to 2016-07-22; source msha-controller-operator-history
- **controller_controls_operator:** Benjamin R.  Bennett → Manalapan Mining Company Inc; 1991-05-01 to 2016-07-22; source msha-controller-operator-history
- **controller_controls_mine:** Douglas  Warriner → RB #5; 2016-07-14 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Montana Bakken, LLC → RB #5; 2016-07-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Douglas  Warriner → Montana Bakken, LLC; 2016-07-23 to current/open; source msha-controller-operator-history