# Relationship history for MSHA mine 4407369

Current hierarchy: **Ramaco Resources Inc → Ramaco Resources Land Holdings, LLC → Mine No. 1**

- 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:** Michael D Bauersachs → Mine No. 1; 2016-07-01 to 2016-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Ramaco Resources Inc → Mine No. 1; 2017-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Omega Deep Mining, LLC → Mine No. 1; 2017-02-16 to 2022-01-02; source msha-controller-operator-history
- **controller_controls_mine:** Bobby  Berry → Mine No. 1; 2017-02-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bobby  Berry → Omega Deep Mining, LLC; 2017-02-16 to 2022-01-02; source msha-controller-operator-history
- **operator_operates_mine:** Ramaco Resources Land Holdings, LLC → Mine No. 1; 2022-01-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael D Bauersachs → Ramaco Resources Land Holdings, LLC; 2022-01-03 to 2016-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Ramaco Resources Inc → Ramaco Resources Land Holdings, LLC; 2022-01-03 to current/open; source msha-controller-operator-history