# Relationship history for MSHA mine 3606330

Current hierarchy: **KTRV LLC → Heritage Coal & Natural Resources, LLC → Refuse Disposal**

- 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:** David D  Svonavec et al → Refuse Disposal; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Svonavec Inc → Refuse Disposal; 1977-03-01 to 2010-12-07; source msha-controller-operator-history
- **controller_controls_operator:** David D  Svonavec et al → Svonavec Inc; 1977-03-01 to 2010-12-07; source msha-controller-operator-history
- **controller_controls_mine:** Angela  Svonavec → Refuse Disposal; 2008-09-03 to 2024-02-04; source msha-controller-operator-history
- **operator_operates_mine:** Wilson Creek Energy LLC → Refuse Disposal; 2010-12-08 to 2024-09-11; source msha-controller-operator-history
- **controller_controls_mine:** Corsa Coal Corporation → Refuse Disposal; 2010-12-08 to 2013-03-14; source msha-controller-operator-history
- **controller_controls_operator:** Corsa Coal Corporation → Wilson Creek Energy LLC; 2010-12-08 to 2013-03-14; source msha-controller-operator-history
- **controller_controls_mine:** Quintana Capital Group GP Ltd et al → Refuse Disposal; 2013-03-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Quintana Capital Group GP Ltd et al → Wilson Creek Energy LLC; 2013-03-15 to 2024-09-11; source msha-controller-operator-history
- **controller_controls_mine:** KTRV LLC → Refuse Disposal; 2024-02-05 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Heritage Coal & Natural Resources, LLC → Refuse Disposal; 2024-09-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Angela  Svonavec → Heritage Coal & Natural Resources, LLC; 2024-09-12 to 2024-02-04; source msha-controller-operator-history
- **controller_controls_operator:** KTRV LLC → Heritage Coal & Natural Resources, LLC; 2024-09-12 to current/open; source msha-controller-operator-history