# Relationship history for MSHA mine 4801562

Current hierarchy: **Basic Energy Inc → Basic Energy Services, L.P. → UNIT # 45**

- 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:** Jay Dee  Hacklin et al → UNIT # 45; 1999-04-01 to 2001-08-15; source msha-controller-operator-history
- **operator_operates_mine:** K & H Construction Llc → UNIT # 45; 1999-05-01 to 2000-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Jay Dee  Hacklin et al → K & H Construction Llc; 1999-05-01 to 2000-12-31; source msha-controller-operator-history
- **operator_operates_mine:** K & H Construction → UNIT # 45; 2001-01-01 to 2002-04-01; source msha-controller-operator-history
- **controller_controls_mine:** First Energy Services Inc → UNIT # 45; 2001-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** First Energy Services Inc → K & H Construction; 2001-01-01 to 2002-04-01; source msha-controller-operator-history
- **operator_operates_mine:** First Energy Services Company → UNIT # 45; 2002-04-02 to 2011-03-31; source msha-controller-operator-history
- **controller_controls_mine:** First Energy Services Inc → UNIT # 45; 2002-06-27 to 2003-10-02; source msha-controller-operator-history
- **controller_controls_operator:** First Energy Services Inc → First Energy Services Company; 2002-06-27 to 2003-10-02; source msha-controller-operator-history
- **controller_controls_mine:** Basic Energy Inc → UNIT # 45; 2003-10-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Basic Energy Inc → First Energy Services Company; 2003-10-03 to 2011-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Basic Energy Inc → UNIT # 45; 2007-09-20 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Basic Energy Services, L.P. → UNIT # 45; 2011-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Basic Energy Inc → Basic Energy Services, L.P.; 2011-04-01 to current/open; source msha-controller-operator-history