# Relationship history for MSHA mine 3401784

Current hierarchy: **Gary  Braly → Braly Construction LLC → MOUNTAIN CREEK SAND & GRAVEL**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Pitts Bobby L & Tommy L → MOUNTAIN CREEK SAND & GRAVEL; 1988-07-11 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Bixby Four Star Sand & Gravel Company → MOUNTAIN CREEK SAND & GRAVEL; 1994-08-01 to 2000-08-22; source msha-controller-operator-history
- **controller_controls_operator:** Pitts Bobby L & Tommy L → Bixby Four Star Sand & Gravel Company; 1994-08-01 to 2000-08-22; source msha-controller-operator-history
- **operator_operates_mine:** Mountain Creek Sand & Gravel → MOUNTAIN CREEK SAND & GRAVEL; 2000-08-23 to 2002-01-22; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth D Laster → MOUNTAIN CREEK SAND & GRAVEL; 2000-08-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth D Laster → Mountain Creek Sand & Gravel; 2000-08-23 to 2002-01-22; source msha-controller-operator-history
- **operator_operates_mine:** Braly Construction LLC → MOUNTAIN CREEK SAND & GRAVEL; 2002-01-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gary  Braly → MOUNTAIN CREEK SAND & GRAVEL; 2002-01-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gary  Braly → Braly Construction LLC; 2002-01-23 to current/open; source msha-controller-operator-history