# Relationship history for MSHA mine 3605077

Current hierarchy: **David M  DeCristo → DeCristo Inc. → Tioga County Quarry**

- 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:** M Lee  Eberhart Jr → Tioga County Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Stabler Companies Inc → Tioga County Quarry; 1950-01-01 to 2008-01-31; source msha-controller-operator-history
- **controller_controls_mine:** New Enterprise Stone & Lime Company Inc → Tioga County Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** H & N Affilliates Inc → Tioga County Quarry; 1950-01-01 to 1981-07-09; source msha-controller-operator-history
- **controller_controls_mine:** Nestlerode R Edward → Tioga County Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Nestlerode R Edward → H & N Affilliates Inc; 1950-01-01 to 1981-07-09; source msha-controller-operator-history
- **operator_operates_mine:** Faylor-Middlecreek Inc → Tioga County Quarry; 1981-07-10 to 1990-03-08; source msha-controller-operator-history
- **controller_controls_operator:** M Lee  Eberhart Jr → Faylor-Middlecreek Inc; 1981-07-10 to 1990-03-08; source msha-controller-operator-history
- **operator_operates_mine:** Eastern Industries Inc → Tioga County Quarry; 1990-03-09 to 2011-10-23; source msha-controller-operator-history
- **controller_controls_operator:** Stabler Companies Inc → Eastern Industries Inc; 1990-03-09 to 2008-01-31; source msha-controller-operator-history
- **controller_controls_mine:** New Enterprise Stone & Lime Company Inc → Tioga County Quarry; 2008-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** New Enterprise Stone & Lime Company Inc → Eastern Industries Inc; 2008-02-01 to 2011-10-23; source msha-controller-operator-history
- **controller_controls_mine:** David M  DeCristo → Tioga County Quarry; 2010-05-19 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Eastern Industries Inc. → Tioga County Quarry; 2011-10-24 to 2017-08-28; source msha-controller-operator-history
- **controller_controls_operator:** New Enterprise Stone & Lime Company Inc → Eastern Industries Inc.; 2011-10-24 to 2017-08-28; source msha-controller-operator-history
- **operator_operates_mine:** DeCristo Inc. → Tioga County Quarry; 2017-08-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David M  DeCristo → DeCristo Inc.; 2017-08-29 to current/open; source msha-controller-operator-history