# Relationship history for MSHA mine 3602773

Current hierarchy: **J Clifford  Forrest III → Rosebud Mining Company → Shaw**

- 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:** Sanner Brothers Coal Company → Shaw; 1950-01-01 to 1977-06-27; source msha-controller-operator-history
- **controller_controls_mine:** Robert T  Sanner → Shaw; 1950-01-01 to 1980-03-23; source msha-controller-operator-history
- **controller_controls_operator:** Robert T  Sanner → Sanner Brothers Coal Company; 1950-01-01 to 1977-06-27; source msha-controller-operator-history
- **operator_operates_mine:** Sanner Coal Company → Shaw; 1977-06-28 to 1981-06-24; source msha-controller-operator-history
- **controller_controls_mine:** Tosco Corp → Shaw; 1977-06-28 to 1981-06-24; source msha-controller-operator-history
- **controller_controls_operator:** Tosco Corp → Sanner Coal Company; 1977-06-28 to 1981-06-24; source msha-controller-operator-history
- **controller_controls_mine:** J Clifford  Forrest III → Shaw; 1979-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Action Mining, Inc. → Shaw; 1981-06-25 to 2011-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Larry R  Sanner et al → Shaw; 1981-06-25 to 2011-01-12; source msha-controller-operator-history
- **controller_controls_operator:** Larry R  Sanner et al → Action Mining, Inc.; 1981-06-25 to 2011-01-12; source msha-controller-operator-history
- **controller_controls_operator:** Douglas L  Sanner et al → Action Mining, Inc.; 1981-06-25 to 2011-01-12; source msha-controller-operator-history
- **controller_controls_mine:** Angela  Svonavec → Shaw; 2008-09-03 to 2024-02-04; source msha-controller-operator-history
- **controller_controls_mine:** J Clifford  Forrest III → Shaw; 2011-01-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** J Clifford  Forrest III → Action Mining, Inc.; 2011-01-13 to 2011-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Rosebud Mining Company → Shaw; 2011-04-01 to 2016-11-08; source msha-controller-operator-history
- **controller_controls_operator:** J Clifford  Forrest III → Rosebud Mining Company; 2011-04-01 to 2016-11-08; source msha-controller-operator-history
- **operator_operates_mine:** Heritage Coal & Natural Resouces → Shaw; 2016-11-09 to 2016-11-09; source msha-controller-operator-history
- **controller_controls_operator:** Angela  Svonavec → Heritage Coal & Natural Resouces; 2016-11-09 to 2016-11-09; source msha-controller-operator-history
- **operator_operates_mine:** Rosebud Mining Company → Shaw; 2016-11-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** J Clifford  Forrest III → Rosebud Mining Company; 2016-11-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** KTRV LLC → Shaw; 2024-02-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** KTRV LLC → Heritage Coal & Natural Resouces; 2024-02-05 to 2016-11-09; source msha-controller-operator-history