# Relationship history for MSHA mine 4003376

Current hierarchy: **Daniel W  Bunn → MEGA HIGHWALL MINING LLC → ADDCAR SYSTEM 16**

- 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:** Robert  Swisher et al → ADDCAR SYSTEM 16; 1950-01-01 to 2008-09-11; source msha-controller-operator-history
- **controller_controls_mine:** James C  Justice II et al → ADDCAR SYSTEM 16; 2008-09-12 to 2017-05-03; source msha-controller-operator-history
- **operator_operates_mine:** Premium Coal Company, Inc. → ADDCAR SYSTEM 16; 2010-04-02 to 2018-01-19; source msha-controller-operator-history
- **controller_controls_operator:** Robert  Swisher et al → Premium Coal Company, Inc.; 2010-04-02 to 2008-09-11; source msha-controller-operator-history
- **controller_controls_operator:** James C  Justice II et al → Premium Coal Company, Inc.; 2010-04-02 to 2017-05-03; source msha-controller-operator-history
- **controller_controls_mine:** Daniel W  Bunn → ADDCAR SYSTEM 16; 2017-03-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James C  Justice lll et al → ADDCAR SYSTEM 16; 2017-05-04 to 2022-08-23; source msha-controller-operator-history
- **controller_controls_operator:** James C  Justice lll et al → Premium Coal Company, Inc.; 2017-05-04 to 2018-01-19; source msha-controller-operator-history
- **controller_controls_operator:** Jillean L  Justice et al → Premium Coal Company, Inc.; 2017-05-04 to 2018-01-19; source msha-controller-operator-history
- **operator_operates_mine:** MEGA HIGHWALL MINING LLC → ADDCAR SYSTEM 16; 2018-01-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Daniel W  Bunn → MEGA HIGHWALL MINING LLC; 2018-01-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James C  Justice III → ADDCAR SYSTEM 16; 2022-08-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James C  Justice III → Premium Coal Company, Inc.; 2022-08-24 to 2018-01-19; source msha-controller-operator-history