# Relationship history for MSHA mine 4405029

Current hierarchy: **Porter Dennis → Oreo Mining Corp → No 2**

- 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

- **operator_operates_mine:** S H & M Coal Company → No 2; 1978-02-01 to 1978-11-05; source msha-controller-operator-history
- **controller_controls_mine:** Matney Roger → No 2; 1978-02-01 to 1978-11-05; source msha-controller-operator-history
- **controller_controls_operator:** Matney Roger → S H & M Coal Company; 1978-02-01 to 1978-11-05; source msha-controller-operator-history
- **controller_controls_mine:** Crouse Donald → No 2; 1978-02-03 to 1985-01-15; source msha-controller-operator-history
- **operator_operates_mine:** H & M Coal Company → No 2; 1978-11-06 to 1979-03-27; source msha-controller-operator-history
- **controller_controls_mine:** Street Jerry → No 2; 1978-11-06 to 1979-03-27; source msha-controller-operator-history
- **controller_controls_operator:** Street Jerry → H & M Coal Company; 1978-11-06 to 1979-03-27; source msha-controller-operator-history
- **operator_operates_mine:** Little Banner Coal Company → No 2; 1979-03-28 to 1980-02-11; source msha-controller-operator-history
- **controller_controls_mine:** Nichols Danny & Dwrey--Ralph Dye → No 2; 1979-03-28 to 1980-02-11; source msha-controller-operator-history
- **controller_controls_operator:** Nichols Danny & Dwrey--Ralph Dye → Little Banner Coal Company; 1979-03-28 to 1980-02-11; source msha-controller-operator-history
- **operator_operates_mine:** Hope Coal Company → No 2; 1980-02-12 to 1980-09-24; source msha-controller-operator-history
- **controller_controls_mine:** Wolford Lonnie W → No 2; 1980-02-12 to 1982-09-01; source msha-controller-operator-history
- **controller_controls_operator:** Wolford Lonnie W → Hope Coal Company; 1980-02-12 to 1980-09-24; source msha-controller-operator-history
- **operator_operates_mine:** B & R Coal Company → No 2; 1980-09-25 to 1981-03-01; source msha-controller-operator-history
- **controller_controls_mine:** Perkins Ronald & Bob Griffith → No 2; 1980-09-25 to 1981-03-01; source msha-controller-operator-history
- **controller_controls_operator:** Perkins Ronald & Bob Griffith → B & R Coal Company; 1980-09-25 to 1981-03-01; source msha-controller-operator-history
- **operator_operates_mine:** Kristen Koal Kompany → No 2; 1981-03-02 to 1985-01-15; source msha-controller-operator-history
- **controller_controls_operator:** Crouse Donald → Kristen Koal Kompany; 1981-03-02 to 1985-01-15; source msha-controller-operator-history
- **operator_operates_mine:** Oreo Mining Corp → No 2; 1985-01-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Porter Dennis → No 2; 1985-01-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Porter Dennis → Oreo Mining Corp; 1985-01-16 to current/open; source msha-controller-operator-history