# Relationship history for MSHA mine 4609341

Current hierarchy: **Martha A Ward → Silver Horse Services, LLC → Witcher Creek Surface Mine**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Ashland Inc et al → Witcher Creek Surface Mine; 1989-08-01 to 2005-12-30; source msha-controller-operator-history
- **controller_controls_mine:** Douglas M  Epling et al → Witcher Creek Surface Mine; 2000-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Magnum Coal Company → Witcher Creek Surface Mine; 2005-12-31 to 2008-07-22; source msha-controller-operator-history
- **controller_controls_mine:** Patriot Coal Corporation → Witcher Creek Surface Mine; 2008-07-23 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Catenary Coal Company LLC → Witcher Creek Surface Mine; 2009-08-28 to 2016-03-21; source msha-controller-operator-history
- **controller_controls_operator:** Magnum Coal Company → Catenary Coal Company LLC; 2009-08-28 to 2008-07-22; source msha-controller-operator-history
- **controller_controls_operator:** Patriot Coal Corporation → Catenary Coal Company LLC; 2009-08-28 to 2016-03-21; source msha-controller-operator-history
- **controller_controls_operator:** Ashland Inc et al → Catenary Coal Company LLC; 2009-08-28 to 2005-12-30; source msha-controller-operator-history
- **controller_controls_mine:** Virginia Conservation Legacy Fund (VCLF) → Witcher Creek Surface Mine; 2015-10-28 to 2017-01-25; source msha-controller-operator-history
- **operator_operates_mine:** ERP Environmental Fund Inc. → Witcher Creek Surface Mine; 2016-03-22 to 2019-01-10; source msha-controller-operator-history
- **controller_controls_operator:** Virginia Conservation Legacy Fund (VCLF) → ERP Environmental Fund Inc.; 2016-03-22 to 2017-01-25; source msha-controller-operator-history
- **controller_controls_mine:** Kissito Healthcare Inc → Witcher Creek Surface Mine; 2017-01-26 to 2018-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Kissito Healthcare Inc → ERP Environmental Fund Inc.; 2017-01-26 to 2018-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Virginia Conservation Legacy Fund (VCLF) → Witcher Creek Surface Mine; 2019-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Virginia Conservation Legacy Fund (VCLF) → ERP Environmental Fund Inc.; 2019-01-01 to 2019-01-10; source msha-controller-operator-history
- **operator_operates_mine:** Hanover Resources, LLC → Witcher Creek Surface Mine; 2019-01-11 to 2021-06-01; source msha-controller-operator-history
- **controller_controls_operator:** Douglas M  Epling et al → Hanover Resources, LLC; 2019-01-11 to 2021-06-01; source msha-controller-operator-history
- **operator_operates_mine:** Investment Management Group, LLC → Witcher Creek Surface Mine; 2021-06-02 to 2022-05-10; source msha-controller-operator-history
- **controller_controls_mine:** Ralph  Ballard → Witcher Creek Surface Mine; 2021-06-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ralph  Ballard → Investment Management Group, LLC; 2021-06-02 to 2022-05-10; source msha-controller-operator-history
- **operator_operates_mine:** Silver Horse Services, LLC → Witcher Creek Surface Mine; 2022-05-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Martha A Ward → Witcher Creek Surface Mine; 2022-05-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Martha A Ward → Silver Horse Services, LLC; 2022-05-11 to current/open; source msha-controller-operator-history