# Relationship history for MSHA mine 4406240

Current hierarchy: **Amvest Corporation → Glamorgan Coal Company → Beverly Hills 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:** Amvest Corporation → Beverly Hills Mine; 1976-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Wesley D.  Burke et al → Beverly Hills Mine; 1982-02-23 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Southland Enterprises Inc → Beverly Hills Mine; 1985-08-01 to 1989-02-23; source msha-controller-operator-history
- **controller_controls_operator:** Wesley D.  Burke et al → Southland Enterprises Inc; 1985-08-01 to 1989-02-23; source msha-controller-operator-history
- **operator_operates_mine:** J & E Coal Company Inc → Beverly Hills Mine; 1989-02-24 to 1994-07-18; source msha-controller-operator-history
- **controller_controls_mine:** Fred  McGlothlin et al → Beverly Hills Mine; 1989-02-24 to 1994-07-18; source msha-controller-operator-history
- **controller_controls_operator:** Fred  McGlothlin et al → J & E Coal Company Inc; 1989-02-24 to 1994-07-18; source msha-controller-operator-history
- **operator_operates_mine:** Cane Patch Coal Company Inc → Beverly Hills Mine; 1994-07-19 to 1995-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Turner Johnny W → Beverly Hills Mine; 1994-07-19 to 1995-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Turner Johnny W → Cane Patch Coal Company Inc; 1994-07-19 to 1995-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Glamorgan Coal Company → Beverly Hills Mine; 1995-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Amvest Corporation → Glamorgan Coal Company; 1995-04-01 to current/open; source msha-controller-operator-history