# Relationship history for MSHA mine 1800170

Current hierarchy: **Arch Resources Inc → Vindex Energy LLC → Jackson Mountain**

- 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:** Phoenix Big Vein Coal Company → Jackson Mountain; 1950-01-01 to 1974-05-28; source msha-controller-operator-history
- **controller_controls_mine:** Phoenix Big Vein Coal Company → Jackson Mountain; 1950-01-01 to 1974-05-28; source msha-controller-operator-history
- **controller_controls_operator:** Phoenix Big Vein Coal Company → Phoenix Big Vein Coal Company; 1950-01-01 to 1974-05-28; source msha-controller-operator-history
- **operator_operates_mine:** Union Coal Company → Jackson Mountain; 1974-05-29 to 1976-05-26; source msha-controller-operator-history
- **controller_controls_mine:** Amman R Green → Jackson Mountain; 1974-05-29 to 1976-05-26; source msha-controller-operator-history
- **controller_controls_operator:** Amman R Green → Union Coal Company; 1974-05-29 to 1976-05-26; source msha-controller-operator-history
- **operator_operates_mine:** Union Coal Company Inc → Jackson Mountain; 1976-05-27 to 1977-07-11; source msha-controller-operator-history
- **controller_controls_mine:** F W  Strom → Jackson Mountain; 1976-05-27 to 1977-07-11; source msha-controller-operator-history
- **controller_controls_operator:** F W  Strom → Union Coal Company Inc; 1976-05-27 to 1977-07-11; source msha-controller-operator-history
- **operator_operates_mine:** Union Coal Company → Jackson Mountain; 1977-07-12 to 1981-05-12; source msha-controller-operator-history
- **controller_controls_mine:** Cowl Energy Corp → Jackson Mountain; 1977-07-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cowl Energy Corp → Union Coal Company; 1977-07-12 to 1981-05-12; source msha-controller-operator-history
- **operator_operates_mine:** Oliver Mining Company → Jackson Mountain; 1981-05-13 to 1986-10-04; source msha-controller-operator-history
- **controller_controls_mine:** James  Clark → Jackson Mountain; 1981-05-13 to 1986-10-04; source msha-controller-operator-history
- **controller_controls_operator:** James  Clark → Oliver Mining Company; 1981-05-13 to 1986-10-04; source msha-controller-operator-history
- **operator_operates_mine:** Barton Mining Company → Jackson Mountain; 1986-10-05 to 2006-03-22; source msha-controller-operator-history
- **controller_controls_mine:** James  Filiaggi → Jackson Mountain; 1986-10-05 to 2005-07-31; source msha-controller-operator-history
- **controller_controls_operator:** James  Filiaggi → Barton Mining Company; 1986-10-05 to 2005-07-31; source msha-controller-operator-history
- **controller_controls_mine:** Anker Group Inc → Jackson Mountain; 1997-02-10 to 2005-11-17; source msha-controller-operator-history
- **controller_controls_mine:** Gerald W  Ramsburg  et al → Jackson Mountain; 2005-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gerald W  Ramsburg  et al → Barton Mining Company; 2005-08-01 to 2006-03-22; source msha-controller-operator-history
- **controller_controls_operator:** Charles R  Howdershelt  et al → Barton Mining Company; 2005-08-01 to 2006-03-22; source msha-controller-operator-history
- **controller_controls_mine:** International Coal Group Inc (ICG) → Jackson Mountain; 2005-11-18 to 2011-06-14; source msha-controller-operator-history
- **operator_operates_mine:** Vindex Energy LLC → Jackson Mountain; 2006-03-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** International Coal Group Inc (ICG) → Vindex Energy LLC; 2006-03-23 to 2011-06-14; source msha-controller-operator-history
- **controller_controls_operator:** Anker Group Inc → Vindex Energy LLC; 2006-03-23 to 2005-11-17; source msha-controller-operator-history
- **controller_controls_mine:** Arch Resources Inc → Jackson Mountain; 2011-06-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Arch Resources Inc → Vindex Energy LLC; 2011-06-15 to current/open; source msha-controller-operator-history