# Relationship history for MSHA mine 1103161

Current hierarchy: **Jeffrey A  Haycraft → Springfield Coal Company, LLC → Pittsburg Carbon**

- 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

- **operator_operates_mine:** Southern Illinois Recovery, Inc. → Pittsburg Carbon; 2006-02-17 to 2007-08-31; source msha-controller-operator-history
- **controller_controls_mine:** General Dynamics Corp → Pittsburg Carbon; 2006-02-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** General Dynamics Corp → Southern Illinois Recovery, Inc.; 2006-02-17 to 2007-08-31; source msha-controller-operator-history
- **operator_operates_mine:** Springfield Coal Company, LLC → Pittsburg Carbon; 2007-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Brian J  Veldhuizen et al → Pittsburg Carbon; 2007-09-01 to 2015-08-10; source msha-controller-operator-history
- **controller_controls_operator:** Brian J  Veldhuizen et al → Springfield Coal Company, LLC; 2007-09-01 to 2015-08-10; source msha-controller-operator-history
- **controller_controls_mine:** Jeffrey A  Haycraft → Pittsburg Carbon; 2015-08-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffrey A  Haycraft → Springfield Coal Company, LLC; 2015-08-11 to current/open; source msha-controller-operator-history