# Relationship history for MSHA mine 4503484

Current hierarchy: **Barry  O'Young → OMA Construction Inc dba Mountain Loop Mine → Mountain Loop 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:** Keith  Benson  et al → Mountain Loop Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** City Transfer Inc → Mountain Loop Mine; 2001-04-04 to 2011-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Keith  Benson  et al → City Transfer Inc; 2001-04-04 to 2011-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Ronald G  Benson  et al → City Transfer Inc; 2001-04-04 to 2011-03-31; source msha-controller-operator-history
- **controller_controls_mine:** David G  Remlinger et al → Mountain Loop Mine; 2006-05-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Petra Terra Inc → Mountain Loop Mine; 2011-04-01 to 2018-04-26; source msha-controller-operator-history
- **controller_controls_mine:** Kevin  Hoppe → Mountain Loop Mine; 2011-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kevin  Hoppe → Petra Terra Inc; 2011-04-01 to 2018-04-26; source msha-controller-operator-history
- **operator_operates_mine:** Wetlands Creation, Inc. → Mountain Loop Mine; 2018-04-27 to 2021-12-31; source msha-controller-operator-history
- **controller_controls_operator:** David G  Remlinger et al → Wetlands Creation, Inc.; 2018-04-27 to 2021-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Steve W Davison et al → Wetlands Creation, Inc.; 2018-04-27 to 2021-12-31; source msha-controller-operator-history
- **operator_operates_mine:** OMA Construction Inc dba Mountain Loop Mine → Mountain Loop Mine; 2022-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Barry  O'Young → Mountain Loop Mine; 2022-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Barry  O'Young → OMA Construction Inc dba Mountain Loop Mine; 2022-01-01 to current/open; source msha-controller-operator-history