# Relationship history for MSHA mine 3304408

Current hierarchy: **Environmental Logistics Services LLC → Apex Environmental LLC → Apex Limestone**

- 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:** Apex Energy Inc → Apex Limestone; 1998-01-01 to 2005-01-16; source msha-controller-operator-history
- **controller_controls_mine:** Albert  Carapellotti  et al → Apex Limestone; 1998-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Albert  Carapellotti  et al → Apex Energy Inc; 1998-01-01 to 2005-01-16; source msha-controller-operator-history
- **controller_controls_operator:** Teresa  Schiappa  et al → Apex Energy Inc; 1998-01-01 to 2005-01-16; source msha-controller-operator-history
- **controller_controls_mine:** Mary J  Brown → Apex Limestone; 2000-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Valley Mining, Inc. → Apex Limestone; 2005-01-17 to 2008-10-03; source msha-controller-operator-history
- **controller_controls_operator:** Mary J  Brown → Valley Mining, Inc.; 2005-01-17 to 2008-10-03; source msha-controller-operator-history
- **operator_operates_mine:** Apex Environmental LLC → Apex Limestone; 2008-10-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Environmental Logistics Services LLC → Apex Limestone; 2008-10-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Environmental Logistics Services LLC → Apex Environmental LLC; 2008-10-04 to current/open; source msha-controller-operator-history