# Relationship history for MSHA mine 1519735

Current hierarchy: **David (Michael)  Jamison → Cedar Lake Mining, Inc. → Highwall Miner #2**

- 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:** Otis R  Robison Jr → Highwall Miner #2; 2006-06-26 to 2017-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Charles  Collins → Highwall Miner #2; 2013-06-27 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** JRC Mining, Inc → Highwall Miner #2; 2014-02-06 to 2018-03-28; source msha-controller-operator-history
- **controller_controls_operator:** Charles  Collins → JRC Mining, Inc; 2014-02-06 to 2018-03-28; source msha-controller-operator-history
- **controller_controls_mine:** Michael T  Costello et al → Highwall Miner #2; 2017-09-01 to 2019-07-31; source msha-controller-operator-history
- **operator_operates_mine:** Cedar Lake Mining, Inc. → Highwall Miner #2; 2018-03-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael T  Costello et al → Cedar Lake Mining, Inc.; 2018-03-29 to 2019-07-31; source msha-controller-operator-history
- **controller_controls_operator:** Freddy  Hunt et al → Cedar Lake Mining, Inc.; 2018-03-29 to 2019-07-31; source msha-controller-operator-history
- **controller_controls_operator:** Otis R  Robison Jr → Cedar Lake Mining, Inc.; 2018-03-29 to 2017-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Michael T  Costello → Highwall Miner #2; 2019-08-01 to 2022-07-05; source msha-controller-operator-history
- **controller_controls_operator:** Michael T  Costello → Cedar Lake Mining, Inc.; 2019-08-01 to 2022-07-05; source msha-controller-operator-history
- **controller_controls_mine:** David (Michael)  Jamison → Highwall Miner #2; 2022-07-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David (Michael)  Jamison → Cedar Lake Mining, Inc.; 2022-07-06 to current/open; source msha-controller-operator-history