# Relationship history for MSHA mine 3608442

Current hierarchy: **Clyde Holding Inc → Buffalo Limestone Inc → Stitt 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

- **operator_operates_mine:** Buffalo Limestone Inc → Stitt Mine; 1993-11-01 to 1999-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Garry W  Houser → Stitt Mine; 1993-11-01 to 1999-08-31; source msha-controller-operator-history
- **controller_controls_operator:** Garry W  Houser → Buffalo Limestone Inc; 1993-11-01 to 1999-08-31; source msha-controller-operator-history
- **operator_operates_mine:** Buffalo Limestone Inc → Stitt Mine; 1999-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Randy C  Duncan → Stitt Mine; 1999-09-01 to 2011-05-08; source msha-controller-operator-history
- **controller_controls_operator:** Randy C  Duncan → Buffalo Limestone Inc; 1999-09-01 to 2011-05-08; source msha-controller-operator-history
- **controller_controls_mine:** Donald H  Stitt et al → Stitt Mine; 2011-05-09 to 2025-12-22; source msha-controller-operator-history
- **controller_controls_operator:** Donald H  Stitt et al → Buffalo Limestone Inc; 2011-05-09 to 2025-12-22; source msha-controller-operator-history
- **controller_controls_operator:** Ronald G  Stitt et al → Buffalo Limestone Inc; 2011-05-09 to 2025-12-22; source msha-controller-operator-history
- **controller_controls_mine:** Clyde Holding Inc → Stitt Mine; 2025-12-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Clyde Holding Inc → Buffalo Limestone Inc; 2025-12-23 to current/open; source msha-controller-operator-history