# Relationship history for MSHA mine 1518716

Current hierarchy: **Timothy W  Evans Sr → TackettCreek Mining, Inc. → Hatfield Gap 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Dan  Chambers et al → Hatfield Gap Surface Mine; 1983-09-01 to 2013-10-06; source msha-controller-operator-history
- **controller_controls_mine:** Frank H  Ikerd III → Hatfield Gap Surface Mine; 2003-02-06 to 2005-06-09; source msha-controller-operator-history
- **operator_operates_mine:** Ikerd Coal Company LLC → Hatfield Gap Surface Mine; 2004-02-09 to 2007-01-07; source msha-controller-operator-history
- **controller_controls_operator:** Frank H  Ikerd III → Ikerd Coal Company LLC; 2004-02-09 to 2005-06-09; source msha-controller-operator-history
- **controller_controls_mine:** Timothy L  Webb → Hatfield Gap Surface Mine; 2005-06-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Timothy L  Webb → Ikerd Coal Company LLC; 2005-06-10 to 2007-01-07; source msha-controller-operator-history
- **controller_controls_mine:** Timothy L  Webb → Hatfield Gap Surface Mine; 2006-03-22 to 2007-01-07; source msha-controller-operator-history
- **operator_operates_mine:** Specialty Coal Processing Inc. → Hatfield Gap Surface Mine; 2007-01-08 to 2007-11-15; source msha-controller-operator-history
- **controller_controls_operator:** Timothy L  Webb → Specialty Coal Processing Inc.; 2007-01-08 to 2007-01-07; source msha-controller-operator-history
- **controller_controls_mine:** James  Cox et al → Hatfield Gap Surface Mine; 2007-01-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James  Cox et al → Specialty Coal Processing Inc.; 2007-01-08 to 2007-11-15; source msha-controller-operator-history
- **operator_operates_mine:** Mountainside Coal Co → Hatfield Gap Surface Mine; 2007-11-16 to 2017-03-15; source msha-controller-operator-history
- **controller_controls_operator:** Dan  Chambers et al → Mountainside Coal Co; 2007-11-16 to 2013-10-06; source msha-controller-operator-history
- **controller_controls_mine:** Timothy W  Evans Sr → Hatfield Gap Surface Mine; 2009-05-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** River Energy JV UK Limited → Hatfield Gap Surface Mine; 2013-10-07 to 2021-04-15; source msha-controller-operator-history
- **controller_controls_operator:** River Energy JV UK Limited → Mountainside Coal Co; 2013-10-07 to 2017-03-15; source msha-controller-operator-history
- **operator_operates_mine:** TackettCreek Mining, Inc. → Hatfield Gap Surface Mine; 2017-03-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Timothy W  Evans Sr → TackettCreek Mining, Inc.; 2017-03-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Damian  Caldwell → Hatfield Gap Surface Mine; 2021-04-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Damian  Caldwell → Mountainside Coal Co; 2021-04-16 to 2017-03-15; source msha-controller-operator-history