# Relationship history for MSHA mine 2200386

Current hierarchy: **Berkshire Hathaway Inc → Acme Brick Company → BOLDEN 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Jannock Ltd → BOLDEN PIT; 1950-01-01 to 2002-04-15; source msha-controller-operator-history
- **operator_operates_mine:** Whaley Construction Company → BOLDEN PIT; 1950-01-01 to 1984-09-04; source msha-controller-operator-history
- **controller_controls_mine:** Robert  Whaley → BOLDEN PIT; 1950-01-01 to 1984-09-04; source msha-controller-operator-history
- **controller_controls_operator:** Robert  Whaley → Whaley Construction Company; 1950-01-01 to 1984-09-04; source msha-controller-operator-history
- **operator_operates_mine:** Holly Springs Brick & Tile Company → BOLDEN PIT; 1984-09-05 to 1990-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Robert  Browning → BOLDEN PIT; 1984-09-05 to 1990-10-31; source msha-controller-operator-history
- **controller_controls_operator:** Robert  Browning → Holly Springs Brick & Tile Company; 1984-09-05 to 1990-10-31; source msha-controller-operator-history
- **operator_operates_mine:** U S Brick → BOLDEN PIT; 1990-11-01 to 2001-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Jannock Ltd → U S Brick; 1990-11-01 to 2001-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Berkshire Hathaway Inc → BOLDEN PIT; 2000-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Acme Brick Company → BOLDEN PIT; 2001-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Berkshire Hathaway Inc → Acme Brick Company; 2001-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hanson PLC → BOLDEN PIT; 2002-04-16 to 2007-08-22; source msha-controller-operator-history
- **controller_controls_operator:** Hanson PLC → U S Brick; 2002-04-16 to 2001-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Heidelberg Materials AG → BOLDEN PIT; 2007-08-23 to 2015-03-12; source msha-controller-operator-history
- **controller_controls_operator:** Heidelberg Materials AG → U S Brick; 2007-08-23 to 2001-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Lone Star Funds → BOLDEN PIT; 2015-03-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lone Star Funds → U S Brick; 2015-03-13 to 2001-05-31; source msha-controller-operator-history