# Relationship history for MSHA mine 4003033

Current hierarchy: **Gary A  Edwards; Charles D  Phillips → NEMO Coal LLC → Cumberland #3**

- 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:** Hood Coal Corp → Cumberland #3; 1990-07-01 to 2013-04-09; source msha-controller-operator-history
- **controller_controls_mine:** James  Hood et al → Cumberland #3; 1990-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James  Hood et al → Hood Coal Corp; 1990-07-01 to 2013-04-09; source msha-controller-operator-history
- **operator_operates_mine:** NEMO Coal LLC → Cumberland #3; 2013-04-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Charles D  Phillips et al → Cumberland #3; 2013-04-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles D  Phillips et al → NEMO Coal LLC; 2013-04-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gary A  Edwards et al → NEMO Coal LLC; 2013-04-10 to current/open; source msha-controller-operator-history