# Relationship history for MSHA mine 3608571

Current hierarchy: **Quintana Capital Group GP Ltd → RoxCoal, Inc. → Sarah**

- 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

- **operator_operates_mine:** Penncoal Inc → Sarah; 1996-07-01 to 2000-02-07; source msha-controller-operator-history
- **controller_controls_mine:** William D  Renton et al → Sarah; 1996-07-01 to 2000-02-07; source msha-controller-operator-history
- **controller_controls_operator:** William D  Renton et al → Penncoal Inc; 1996-07-01 to 2000-02-07; source msha-controller-operator-history
- **controller_controls_mine:** Severstal Resources → Sarah; 1998-03-06 to 2014-08-19; source msha-controller-operator-history
- **operator_operates_mine:** Rox Coal Inc → Sarah; 2000-02-08 to 2000-05-03; source msha-controller-operator-history
- **controller_controls_operator:** Severstal Resources → Rox Coal Inc; 2000-02-08 to 2000-05-03; source msha-controller-operator-history
- **operator_operates_mine:** SARAH RESOURCES INCORPORATED → Sarah; 2000-05-04 to 2004-03-28; source msha-controller-operator-history
- **controller_controls_mine:** James A  Hickman → Sarah; 2000-05-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James A  Hickman → SARAH RESOURCES INCORPORATED; 2000-05-04 to 2004-03-28; source msha-controller-operator-history
- **operator_operates_mine:** RoxCoal, Inc. → Sarah; 2004-03-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Severstal Resources → RoxCoal, Inc.; 2004-03-29 to 2014-08-19; source msha-controller-operator-history
- **controller_controls_mine:** Quintana Capital Group GP Ltd et al → Sarah; 2014-08-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Quintana Capital Group GP Ltd et al → Rox Coal Inc; 2014-08-20 to 2000-05-03; source msha-controller-operator-history
- **controller_controls_operator:** Quintana Capital Group GP Ltd et al → RoxCoal, Inc.; 2014-08-20 to current/open; source msha-controller-operator-history