# Relationship history for MSHA mine 3609893

Current hierarchy: **J Clifford  Forrest III → ROSEBUD MINING COMPANY → ACOSTA DEEP 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** J Clifford  Forrest III → ACOSTA DEEP MINE; 1979-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Corsa Coal Corporation → ACOSTA DEEP MINE; 2010-12-08 to 2013-03-14; source msha-controller-operator-history
- **controller_controls_mine:** Quintana Capital Group GP Ltd et al → ACOSTA DEEP MINE; 2013-03-15 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Wilson Creek Energy LLC → ACOSTA DEEP MINE; 2016-09-08 to 2025-04-03; source msha-controller-operator-history
- **controller_controls_operator:** Quintana Capital Group GP Ltd et al → Wilson Creek Energy LLC; 2016-09-08 to 2025-04-03; source msha-controller-operator-history
- **controller_controls_operator:** Corsa Coal Corporation → Wilson Creek Energy LLC; 2016-09-08 to 2013-03-14; source msha-controller-operator-history
- **operator_operates_mine:** Rosebud Mining Company → ACOSTA DEEP 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