# Relationship history for MSHA mine 3401754

Current hierarchy: **Mark  Balagna → Silvercreek Construction Inc → Eagle Mine No 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:** Mark  Balagna → Eagle Mine No 2; 1990-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Pommier Kay L → Eagle Mine No 2; 1990-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Nationwide Mining Inc → Eagle Mine No 2; 1991-04-01 to 1992-08-16; source msha-controller-operator-history
- **controller_controls_mine:** Nation L D → Eagle Mine No 2; 1991-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Nation L D → Nationwide Mining Inc; 1991-04-01 to 1992-08-16; source msha-controller-operator-history
- **operator_operates_mine:** Haskell Mining Inc → Eagle Mine No 2; 1992-08-17 to 1993-03-21; source msha-controller-operator-history
- **controller_controls_operator:** Mark  Balagna → Haskell Mining Inc; 1992-08-17 to 1993-03-21; source msha-controller-operator-history
- **operator_operates_mine:** Industrial Management Services Inc → Eagle Mine No 2; 1993-03-22 to 1994-05-01; source msha-controller-operator-history
- **controller_controls_operator:** Pommier Kay L → Industrial Management Services Inc; 1993-03-22 to 1994-05-01; source msha-controller-operator-history
- **operator_operates_mine:** Silvercreek Construction Inc → Eagle Mine No 2; 1994-05-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mark  Balagna → Eagle Mine No 2; 1994-05-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mark  Balagna → Silvercreek Construction Inc; 1994-05-02 to current/open; source msha-controller-operator-history