# Relationship history for MSHA mine 4001680

Current hierarchy: **John  Davenport → Davex Energy → Davex Energy Shipping & Processing Plant**

- 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:** Jimmy E  Hamilton et al → Davex Energy Shipping & Processing Plant; 1974-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Triple I Company Inc → Davex Energy Shipping & Processing Plant; 1974-11-01 to 1978-07-31; source msha-controller-operator-history
- **controller_controls_operator:** Jimmy E  Hamilton et al → Triple I Company Inc; 1974-11-01 to 1978-07-31; source msha-controller-operator-history
- **operator_operates_mine:** Triple I Coal Company → Davex Energy Shipping & Processing Plant; 1978-08-01 to 1985-10-08; source msha-controller-operator-history
- **controller_controls_mine:** Moore Clarence → Davex Energy Shipping & Processing Plant; 1978-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Moore Clarence → Triple I Coal Company; 1978-08-01 to 1985-10-08; source msha-controller-operator-history
- **controller_controls_mine:** Dan  Chambers et al → Davex Energy Shipping & Processing Plant; 1983-09-01 to 2013-10-06; source msha-controller-operator-history
- **operator_operates_mine:** Garcoal Inc → Davex Energy Shipping & Processing Plant; 1985-10-09 to 2007-02-28; source msha-controller-operator-history
- **controller_controls_mine:** David G  Byrd → Davex Energy Shipping & Processing Plant; 1985-10-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David G  Byrd → Garcoal Inc; 1985-10-09 to 2007-02-28; source msha-controller-operator-history
- **operator_operates_mine:** Mountainside Coal Company Inc → Davex Energy Shipping & Processing Plant; 2007-03-01 to 2019-09-17; source msha-controller-operator-history
- **controller_controls_operator:** Dan  Chambers et al → Mountainside Coal Company Inc; 2007-03-01 to 2013-10-06; source msha-controller-operator-history
- **controller_controls_mine:** Tina  Davenport et al → Davex Energy Shipping & Processing Plant; 2012-06-21 to 2019-09-17; source msha-controller-operator-history
- **controller_controls_mine:** River Energy JV UK Limited → Davex Energy Shipping & Processing Plant; 2013-10-07 to 2021-04-15; source msha-controller-operator-history
- **controller_controls_operator:** River Energy JV UK Limited → Mountainside Coal Company Inc; 2013-10-07 to 2019-09-17; source msha-controller-operator-history
- **operator_operates_mine:** Davex Energy → Davex Energy Shipping & Processing Plant; 2019-09-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tina  Davenport et al → Davex Energy; 2019-09-18 to 2019-09-17; source msha-controller-operator-history
- **controller_controls_operator:** John C  Davenport et al → Davex Energy; 2019-09-18 to 2019-09-17; source msha-controller-operator-history
- **controller_controls_mine:** John  Davenport → Davex Energy Shipping & Processing Plant; 2019-09-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Davenport → Davex Energy; 2019-09-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Damian  Caldwell → Davex Energy Shipping & Processing Plant; 2021-04-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Damian  Caldwell → Mountainside Coal Company Inc; 2021-04-16 to 2019-09-17; source msha-controller-operator-history