# Relationship history for MSHA mine 0202555

Current hierarchy: **Roedel Mike-Graham Pattison → Rmg Mining Inc → Mystic**

- 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:** Ronald W  Guill → Mystic; 1988-04-01 to 2011-01-27; source msha-controller-operator-history
- **operator_operates_mine:** Mining Drilling Milling Inc → Mystic; 1991-04-01 to 1991-10-20; source msha-controller-operator-history
- **controller_controls_mine:** Minchey Mark & Marion Birch → Mystic; 1991-04-01 to 1991-10-20; source msha-controller-operator-history
- **controller_controls_operator:** Minchey Mark & Marion Birch → Mining Drilling Milling Inc; 1991-04-01 to 1991-10-20; source msha-controller-operator-history
- **operator_operates_mine:** J & S Mining Inc → Mystic; 1991-10-21 to 1992-04-30; source msha-controller-operator-history
- **controller_controls_mine:** Stocks Joe Et Al → Mystic; 1991-10-21 to 1992-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Stocks Joe Et Al → J & S Mining Inc; 1991-10-21 to 1992-04-30; source msha-controller-operator-history
- **operator_operates_mine:** Small Mine Development → Mystic; 1992-05-01 to 1992-10-19; source msha-controller-operator-history
- **controller_controls_operator:** Ronald W  Guill → Small Mine Development; 1992-05-01 to 1992-10-19; source msha-controller-operator-history
- **controller_controls_mine:** Roedel Mike-Graham Pattison Et Al → Mystic; 1992-06-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Rmg Mining Inc → Mystic; 1992-10-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Roedel Mike-Graham Pattison Et Al → Rmg Mining Inc; 1992-10-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Keith  Jones → Mystic; 2011-01-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Keith  Jones → Small Mine Development; 2011-01-28 to 1992-10-19; source msha-controller-operator-history