# Relationship history for MSHA mine 4607458

Current hierarchy: **Royal Holding Company; Edward F T  Hatfield → Docks Creek, LLC → Docks Creek, LLC**

- 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:** Ashland Inc et al → Docks Creek, LLC; 1977-03-01 to 1997-07-09; source msha-controller-operator-history
- **controller_controls_mine:** Anderson Albert A Et Al → Docks Creek, LLC; 1977-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** E-Town Supply Company → Docks Creek, LLC; 1988-02-01 to 1989-09-04; source msha-controller-operator-history
- **controller_controls_operator:** Anderson Albert A Et Al → E-Town Supply Company; 1988-02-01 to 1989-09-04; source msha-controller-operator-history
- **operator_operates_mine:** Arch Coal Terminal Inc → Docks Creek, LLC; 1989-09-05 to 1999-01-05; source msha-controller-operator-history
- **controller_controls_operator:** Ashland Inc et al → Arch Coal Terminal Inc; 1989-09-05 to 1997-07-09; source msha-controller-operator-history
- **controller_controls_mine:** Arch Resources Inc → Docks Creek, LLC; 1997-07-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Arch Resources Inc → Arch Coal Terminal Inc; 1997-07-10 to 1999-01-05; source msha-controller-operator-history
- **operator_operates_mine:** Docks Creek, LLC → Docks Creek, LLC; 1999-01-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Utilicorp United Inc → Docks Creek, LLC; 1999-01-06 to 2003-06-27; source msha-controller-operator-history
- **controller_controls_operator:** Utilicorp United Inc → Docks Creek, LLC; 1999-01-06 to 2003-06-27; source msha-controller-operator-history
- **controller_controls_mine:** Franklin D  Robertson  et al → Docks Creek, LLC; 2003-06-28 to 2007-08-21; source msha-controller-operator-history
- **controller_controls_operator:** Franklin D  Robertson  et al → Docks Creek, LLC; 2003-06-28 to 2007-08-21; source msha-controller-operator-history
- **controller_controls_operator:** James O  Bunn  et al → Docks Creek, LLC; 2003-06-28 to 2007-08-21; source msha-controller-operator-history
- **controller_controls_mine:** Royal Holding Company  et al → Docks Creek, LLC; 2007-08-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Royal Holding Company  et al → Docks Creek, LLC; 2007-08-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Edward F T  Hatfield  et al → Docks Creek, LLC; 2007-08-22 to current/open; source msha-controller-operator-history