# Relationship history for MSHA mine 4606850

Current hierarchy: **Darvin  Rowe → Resurrection Coal Company, Inc. → 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

- **operator_operates_mine:** Darbet Inc → Mine No 1; 1984-10-01 to 1996-03-11; source msha-controller-operator-history
- **controller_controls_mine:** Darvin  Rowe et al → Mine No 1; 1984-10-01 to 1996-03-11; source msha-controller-operator-history
- **controller_controls_operator:** Darvin  Rowe et al → Darbet Inc; 1984-10-01 to 1996-03-11; source msha-controller-operator-history
- **operator_operates_mine:** Keith Coal Company Inc → Mine No 1; 1996-03-12 to 2004-03-08; source msha-controller-operator-history
- **controller_controls_mine:** Randall K  Rowe → Mine No 1; 1996-03-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Randall K  Rowe → Keith Coal Company Inc; 1996-03-12 to 2004-03-08; source msha-controller-operator-history
- **controller_controls_mine:** Darvin  Rowe et al → Mine No 1; 2002-02-15 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** GBM Coal Company Incorporated → Mine No 1; 2004-03-09 to 2005-08-22; source msha-controller-operator-history
- **controller_controls_mine:** Martin E  McGee → Mine No 1; 2004-03-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Martin E  McGee → GBM Coal Company Incorporated; 2004-03-09 to 2005-08-22; source msha-controller-operator-history
- **operator_operates_mine:** Resurrection Coal Company, Inc. → Mine No 1; 2005-08-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Darvin  Rowe et al → Resurrection Coal Company, Inc.; 2005-08-23 to current/open; source msha-controller-operator-history