# Relationship history for MSHA mine 0404665

Current hierarchy: **Penny J  Holliday → Holliday Rock Company Inc → Mojave 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:** Penny J  Holliday et al → Mojave Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Asphalt Construction Company Inc → Mojave Pit; 1983-08-01 to 1992-12-31; source msha-controller-operator-history
- **controller_controls_mine:** H C  Hemperly Jr → Mojave Pit; 1983-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** H C  Hemperly Jr → Asphalt Construction Company Inc; 1983-08-01 to 1992-12-31; source msha-controller-operator-history
- **operator_operates_mine:** East Kern Aggregates Inc → Mojave Pit; 1993-01-01 to 1998-09-06; source msha-controller-operator-history
- **controller_controls_mine:** A C  Warnack → Mojave Pit; 1993-01-01 to 1998-09-13; source msha-controller-operator-history
- **controller_controls_operator:** A C  Warnack → East Kern Aggregates Inc; 1993-01-01 to 1998-09-06; source msha-controller-operator-history
- **operator_operates_mine:** Asphalt Construction Company Inc → Mojave Pit; 1998-09-07 to 2007-07-25; source msha-controller-operator-history
- **controller_controls_operator:** H C  Hemperly Jr → Asphalt Construction Company Inc; 1998-09-07 to 2007-07-25; source msha-controller-operator-history
- **operator_operates_mine:** Holliday Rock Company Inc → Mojave Pit; 2007-07-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Penny J  Holliday et al → Holliday Rock Company Inc; 2007-07-26 to current/open; source msha-controller-operator-history