# Relationship history for MSHA mine 4608604

Current hierarchy: **Thomas W  Lusk → Energy Plus Inc → No 52 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:** Kenneth Cline  Walls II → No 52 Mine; 1994-03-18 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Kenjean Inc → No 52 Mine; 1996-11-01 to 1997-11-19; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth Cline  Walls II → Kenjean Inc; 1996-11-01 to 1997-11-19; source msha-controller-operator-history
- **controller_controls_mine:** Angela  Hopkins → No 52 Mine; 1997-07-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Bearco Mining Company Inc → No 52 Mine; 1997-11-20 to 1998-05-26; source msha-controller-operator-history
- **controller_controls_operator:** Angela  Hopkins → Bearco Mining Company Inc; 1997-11-20 to 1998-05-26; source msha-controller-operator-history
- **controller_controls_mine:** Calvin  Cook → No 52 Mine; 1998-05-10 to 1999-01-13; source msha-controller-operator-history
- **operator_operates_mine:** Heritage Minerals Inc → No 52 Mine; 1998-05-27 to 1999-01-13; source msha-controller-operator-history
- **controller_controls_operator:** Calvin  Cook → Heritage Minerals Inc; 1998-05-27 to 1999-01-13; source msha-controller-operator-history
- **controller_controls_mine:** Joseph  Deskins → No 52 Mine; 1998-11-20 to 2000-03-12; source msha-controller-operator-history
- **operator_operates_mine:** Bottom Creek Coal Inc → No 52 Mine; 1999-01-14 to 2000-03-12; source msha-controller-operator-history
- **controller_controls_operator:** Joseph  Deskins → Bottom Creek Coal Inc; 1999-01-14 to 2000-03-12; source msha-controller-operator-history
- **operator_operates_mine:** High Knob Coal Company Inc → No 52 Mine; 2000-03-13 to 2000-07-21; source msha-controller-operator-history
- **controller_controls_mine:** Billy R  Lee → No 52 Mine; 2000-03-13 to 2000-07-21; source msha-controller-operator-history
- **controller_controls_operator:** Billy R  Lee → High Knob Coal Company Inc; 2000-03-13 to 2000-07-21; source msha-controller-operator-history
- **operator_operates_mine:** High Knob Coal Company Inc → No 52 Mine; 2000-07-22 to 2001-08-29; source msha-controller-operator-history
- **controller_controls_mine:** Tom  Davis → No 52 Mine; 2000-07-22 to 2001-08-29; source msha-controller-operator-history
- **controller_controls_operator:** Tom  Davis → High Knob Coal Company Inc; 2000-07-22 to 2001-08-29; source msha-controller-operator-history
- **operator_operates_mine:** Energy Plus Inc → No 52 Mine; 2001-08-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Thomas W  Lusk → No 52 Mine; 2001-08-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Thomas W  Lusk → Energy Plus Inc; 2001-08-30 to current/open; source msha-controller-operator-history