# Relationship history for MSHA mine 1510635

Current hierarchy: **Baldwin Harold → Fossil Mining International Inc → Fossil Mining International Inc #1**

- 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:** Aces Branch Mining Company Inc → Fossil Mining International Inc #1; 1977-07-01 to 1978-08-23; source msha-controller-operator-history
- **controller_controls_mine:** Hall James Leland → Fossil Mining International Inc #1; 1977-07-01 to 1978-08-23; source msha-controller-operator-history
- **controller_controls_operator:** Hall James Leland → Aces Branch Mining Company Inc; 1977-07-01 to 1978-08-23; source msha-controller-operator-history
- **controller_controls_mine:** Cardinal Resources Inc → Fossil Mining International Inc #1; 1978-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cardinal Resources Inc → Fossil Mining International Inc #1; 1978-08-24 to 1980-02-10; source msha-controller-operator-history
- **controller_controls_operator:** Cardinal Resources Inc → Cardinal Resources Inc; 1978-08-24 to 1980-02-10; source msha-controller-operator-history
- **operator_operates_mine:** Ace Energy Company Inc → Fossil Mining International Inc #1; 1980-02-11 to 1981-02-23; source msha-controller-operator-history
- **controller_controls_mine:** Jones David C → Fossil Mining International Inc #1; 1980-02-11 to 1981-02-23; source msha-controller-operator-history
- **controller_controls_operator:** Jones David C → Ace Energy Company Inc; 1980-02-11 to 1981-02-23; source msha-controller-operator-history
- **operator_operates_mine:** G V Coal Company → Fossil Mining International Inc #1; 1981-02-24 to 1981-05-11; source msha-controller-operator-history
- **controller_controls_mine:** Vandagriff Glen Doil → Fossil Mining International Inc #1; 1981-02-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Vandagriff Glen Doil → G V Coal Company; 1981-02-24 to 1981-05-11; source msha-controller-operator-history
- **operator_operates_mine:** Fossil Mining International Inc → Fossil Mining International Inc #1; 1981-05-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Baldwin Harold → Fossil Mining International Inc #1; 1981-05-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Baldwin Harold → Fossil Mining International Inc; 1981-05-12 to current/open; source msha-controller-operator-history