# Relationship history for MSHA mine 3601760

Current hierarchy: **Robindale Energy Services Inc → Lehigh Anthracite Coal, LLC → Greenwood**

- 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:** Greenwood Mining Company → Greenwood; 1950-01-01 to 1974-11-10; source msha-controller-operator-history
- **controller_controls_mine:** James  Fauzio  et al → Greenwood; 1950-01-01 to 1974-12-18; source msha-controller-operator-history
- **controller_controls_operator:** James  Fauzio  et al → Greenwood Mining Company; 1950-01-01 to 1974-11-10; source msha-controller-operator-history
- **controller_controls_mine:** Bethlehem Steel Corp → Greenwood; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Bethlehem Mines Corp → Greenwood; 1974-11-11 to 1989-02-26; source msha-controller-operator-history
- **controller_controls_operator:** Bethlehem Steel Corp → Bethlehem Mines Corp; 1974-11-11 to 1989-02-26; source msha-controller-operator-history
- **operator_operates_mine:** Lehigh Coal & Navigation Company → Greenwood; 1989-02-27 to 2010-06-03; source msha-controller-operator-history
- **controller_controls_mine:** James J  Curran Jr → Greenwood; 1989-02-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James J  Curran Jr → Lehigh Coal & Navigation Company; 1989-02-27 to 2010-06-03; source msha-controller-operator-history
- **operator_operates_mine:** Lehigh Natural Resources → Greenwood; 2010-06-04 to 2011-05-01; source msha-controller-operator-history
- **controller_controls_mine:** Douglas  Topkis et al → Greenwood; 2010-06-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Douglas  Topkis et al → Lehigh Natural Resources; 2010-06-04 to 2011-05-01; source msha-controller-operator-history
- **controller_controls_operator:** Bruce  Toll et al → Lehigh Natural Resources; 2010-06-04 to 2011-05-01; source msha-controller-operator-history
- **operator_operates_mine:** Lehigh Anthracite Coal, LLC → Greenwood; 2011-05-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Robindale Energy Services Inc → Greenwood; 2011-05-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robindale Energy Services Inc → Lehigh Anthracite Coal, LLC; 2011-05-02 to current/open; source msha-controller-operator-history