# Relationship history for MSHA mine 1800780

Current hierarchy: **J Clifford  Forrest III → Rosebud Mining Company → CASSELMAN MINE**

- 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:** J Clifford  Forrest III → CASSELMAN MINE; 1979-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Risa  Taylor → CASSELMAN MINE; 2003-03-24 to 2006-02-23; source msha-controller-operator-history
- **controller_controls_mine:** Freddie A  Taylor → CASSELMAN MINE; 2006-02-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Maryland Energy Resources, LLC → CASSELMAN MINE; 2009-02-27 to 2012-06-28; source msha-controller-operator-history
- **controller_controls_mine:** Joseph J  Peles → CASSELMAN MINE; 2009-02-27 to 2011-05-18; source msha-controller-operator-history
- **controller_controls_operator:** Joseph J  Peles → Maryland Energy Resources, LLC; 2009-02-27 to 2011-05-18; source msha-controller-operator-history
- **controller_controls_mine:** Corsa Coal Corporation → CASSELMAN MINE; 2011-05-19 to 2013-03-14; source msha-controller-operator-history
- **controller_controls_operator:** Corsa Coal Corporation → Maryland Energy Resources, LLC; 2011-05-19 to 2012-06-28; source msha-controller-operator-history
- **operator_operates_mine:** ARJ Construction Co. Inc. → CASSELMAN MINE; 2012-06-29 to 2012-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Risa  Taylor → ARJ Construction Co. Inc.; 2012-06-29 to 2006-02-23; source msha-controller-operator-history
- **controller_controls_operator:** Freddie A  Taylor → ARJ Construction Co. Inc.; 2012-06-29 to 2012-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Maryland Energy Resources, LLC → CASSELMAN MINE; 2013-01-01 to 2025-04-03; source msha-controller-operator-history
- **controller_controls_operator:** Corsa Coal Corporation → Maryland Energy Resources, LLC; 2013-01-01 to 2013-03-14; source msha-controller-operator-history
- **controller_controls_operator:** Joseph J  Peles → Maryland Energy Resources, LLC; 2013-01-01 to 2011-05-18; source msha-controller-operator-history
- **controller_controls_mine:** Quintana Capital Group GP Ltd et al → CASSELMAN MINE; 2013-03-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Quintana Capital Group GP Ltd et al → Maryland Energy Resources, LLC; 2013-03-15 to 2012-06-28; source msha-controller-operator-history
- **controller_controls_operator:** Quintana Capital Group GP Ltd et al → Maryland Energy Resources, LLC; 2013-03-15 to 2025-04-03; source msha-controller-operator-history
- **operator_operates_mine:** Rosebud Mining Company → CASSELMAN MINE; 2025-04-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** J Clifford  Forrest III → Rosebud Mining Company; 2025-04-04 to current/open; source msha-controller-operator-history