# Relationship history for MSHA mine 0102100

Current hierarchy: **Butts & Billingsley Construction Company Inc → Butts & Billingsley Construction Company Inc → Paul Pit**

- 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:** Miller Larry G → Paul Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Thomas Ralph → Paul Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Gulf Coast Gravel Company Inc → Paul Pit; 1979-01-01 to 1980-02-25; source msha-controller-operator-history
- **controller_controls_mine:** Mc Clung W A → Paul Pit; 1979-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mc Clung W A → Gulf Coast Gravel Company Inc; 1979-01-01 to 1980-02-25; source msha-controller-operator-history
- **operator_operates_mine:** Thomac Trucking & Gravel Company → Paul Pit; 1980-02-26 to 1980-10-08; source msha-controller-operator-history
- **controller_controls_operator:** Thomas Ralph → Thomac Trucking & Gravel Company; 1980-02-26 to 1980-10-08; source msha-controller-operator-history
- **operator_operates_mine:** L G M Enterprises Inc → Paul Pit; 1980-10-09 to 1981-05-06; source msha-controller-operator-history
- **controller_controls_operator:** Miller Larry G → L G M Enterprises Inc; 1980-10-09 to 1981-05-06; source msha-controller-operator-history
- **operator_operates_mine:** Thomac Trucking & Gravel Company → Paul Pit; 1981-05-07 to 1983-03-21; source msha-controller-operator-history
- **controller_controls_operator:** Thomas Ralph → Thomac Trucking & Gravel Company; 1981-05-07 to 1983-03-21; source msha-controller-operator-history
- **operator_operates_mine:** Butts & Billingsley Construction Company Inc → Paul Pit; 1983-03-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Butts & Billingsley Construction Company Inc Et Al → Paul Pit; 1983-03-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Butts & Billingsley Construction Company Inc Et Al → Butts & Billingsley Construction Company Inc; 1983-03-22 to current/open; source msha-controller-operator-history