# Relationship history for MSHA mine 0102527

Current hierarchy: **Cox Robert M → Skyhawk Mining Corp → Capricorn 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:** Cox Coal Corp → Capricorn Mine; 1983-02-01 to 1987-02-28; source msha-controller-operator-history
- **controller_controls_mine:** Cox Robert M → Capricorn Mine; 1983-02-01 to 1987-02-28; source msha-controller-operator-history
- **controller_controls_operator:** Cox Robert M → Cox Coal Corp; 1983-02-01 to 1987-02-28; source msha-controller-operator-history
- **operator_operates_mine:** Skyhawk Mining Corp → Capricorn Mine; 1987-03-01 to 1989-12-14; source msha-controller-operator-history
- **controller_controls_mine:** Kasraie Behzad → Capricorn Mine; 1987-03-01 to 1989-12-14; source msha-controller-operator-history
- **controller_controls_operator:** Kasraie Behzad → Skyhawk Mining Corp; 1987-03-01 to 1989-12-14; source msha-controller-operator-history
- **operator_operates_mine:** Skyhawk Mining Corp → Capricorn Mine; 1989-12-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Cox Robert M → Capricorn Mine; 1989-12-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cox Robert M → Skyhawk Mining Corp; 1989-12-15 to current/open; source msha-controller-operator-history