# Relationship history for MSHA mine 4602445

Current hierarchy: **Virginia Conservation Legacy Fund (VCLF) → ERP Environmental Fund Inc. → Pond Fork Processing**

- 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:** Island Creek Coal Company → Pond Fork Processing; 1950-01-01 to 1993-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Occidental Petroleum Corp → Pond Fork Processing; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Occidental Petroleum Corp → Island Creek Coal Company; 1950-01-01 to 1993-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Island Creek Coal Company → Pond Fork Processing; 1993-07-01 to 1997-07-10; source msha-controller-operator-history
- **controller_controls_mine:** CONSOL Energy Inc → Pond Fork Processing; 1993-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CONSOL Energy Inc → Island Creek Coal Company; 1993-07-01 to 1997-07-10; source msha-controller-operator-history
- **controller_controls_mine:** Chris  Cline → Pond Fork Processing; 1997-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jupiter Coal Company Inc → Pond Fork Processing; 1997-07-11 to 2002-01-21; source msha-controller-operator-history
- **controller_controls_operator:** Chris  Cline → Jupiter Coal Company Inc; 1997-07-11 to 2002-01-21; source msha-controller-operator-history
- **controller_controls_mine:** Chris  Cline → Pond Fork Processing; 2000-01-01 to 2006-03-17; source msha-controller-operator-history
- **operator_operates_mine:** Pond Fork Processing, LLC → Pond Fork Processing; 2002-01-22 to 2013-12-17; source msha-controller-operator-history
- **controller_controls_mine:** Chris  Cline → Pond Fork Processing; 2002-01-22 to 2002-08-14; source msha-controller-operator-history
- **controller_controls_operator:** Chris  Cline → Pond Fork Processing, LLC; 2002-01-22 to 2002-08-14; source msha-controller-operator-history
- **controller_controls_mine:** Richard  Busick → Pond Fork Processing; 2002-08-15 to 2005-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Richard  Busick → Pond Fork Processing, LLC; 2002-08-15 to 2005-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Timothy G Elliott → Pond Fork Processing; 2005-04-01 to 2006-03-17; source msha-controller-operator-history
- **controller_controls_operator:** Timothy G Elliott → Pond Fork Processing, LLC; 2005-04-01 to 2006-03-17; source msha-controller-operator-history
- **controller_controls_mine:** Magnum Coal Company → Pond Fork Processing; 2006-03-18 to 2008-07-22; source msha-controller-operator-history
- **controller_controls_operator:** Magnum Coal Company → Pond Fork Processing, LLC; 2006-03-18 to 2008-07-22; source msha-controller-operator-history
- **controller_controls_mine:** Patriot Coal Corporation → Pond Fork Processing; 2008-07-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Patriot Coal Corporation → Pond Fork Processing, LLC; 2008-07-23 to 2013-12-17; source msha-controller-operator-history
- **operator_operates_mine:** Thunderhill Coal LLC → Pond Fork Processing; 2013-12-18 to 2015-10-27; source msha-controller-operator-history
- **controller_controls_operator:** Magnum Coal Company → Thunderhill Coal LLC; 2013-12-18 to 2008-07-22; source msha-controller-operator-history
- **controller_controls_operator:** Patriot Coal Corporation → Thunderhill Coal LLC; 2013-12-18 to 2015-10-27; source msha-controller-operator-history
- **controller_controls_operator:** Chris  Cline → Thunderhill Coal LLC; 2013-12-18 to 2006-03-17; source msha-controller-operator-history
- **operator_operates_mine:** ERP Environmental Fund Inc. → Pond Fork Processing; 2015-10-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Virginia Conservation Legacy Fund (VCLF) → Pond Fork Processing; 2015-10-28 to 2017-01-25; source msha-controller-operator-history
- **controller_controls_operator:** Virginia Conservation Legacy Fund (VCLF) → ERP Environmental Fund Inc.; 2015-10-28 to 2017-01-25; source msha-controller-operator-history
- **controller_controls_mine:** Kissito Healthcare Inc → Pond Fork Processing; 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) → Pond Fork Processing; 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 current/open; source msha-controller-operator-history