# Relationship history for MSHA mine 3605132

Current hierarchy: **Mowry W Thomas → Jedco Minerals Inc → Ocean #5 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

- **controller_controls_mine:** Kassab Jacob & Charles Campbell → Ocean #5 Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Crescent Hills Coal Company Inc → Ocean #5 Mine; 1974-08-01 to 1983-09-26; source msha-controller-operator-history
- **controller_controls_operator:** Kassab Jacob & Charles Campbell → Crescent Hills Coal Company Inc; 1974-08-01 to 1983-09-26; source msha-controller-operator-history
- **operator_operates_mine:** Crescent Hills Coal Company Inc → Ocean #5 Mine; 1983-09-27 to 1986-11-06; source msha-controller-operator-history
- **controller_controls_mine:** Shannopin Mining Company → Ocean #5 Mine; 1983-09-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shannopin Mining Company → Crescent Hills Coal Company Inc; 1983-09-27 to 1986-11-06; source msha-controller-operator-history
- **operator_operates_mine:** Crescent Hills Coal Company Inc → Ocean #5 Mine; 1986-11-07 to 1988-02-24; source msha-controller-operator-history
- **controller_controls_mine:** Atlas Alloys Company Inc → Ocean #5 Mine; 1986-11-07 to 1988-02-24; source msha-controller-operator-history
- **controller_controls_operator:** Atlas Alloys Company Inc → Crescent Hills Coal Company Inc; 1986-11-07 to 1988-02-24; source msha-controller-operator-history
- **operator_operates_mine:** Capin Mining Inc → Ocean #5 Mine; 1988-02-25 to 1989-08-01; source msha-controller-operator-history
- **controller_controls_mine:** Custer Allen E → Ocean #5 Mine; 1988-02-25 to 1989-08-01; source msha-controller-operator-history
- **controller_controls_operator:** Custer Allen E → Capin Mining Inc; 1988-02-25 to 1989-08-01; source msha-controller-operator-history
- **operator_operates_mine:** Jedco Minerals Inc → Ocean #5 Mine; 1989-08-02 to 1991-02-28; source msha-controller-operator-history
- **controller_controls_mine:** Geevor Inc → Ocean #5 Mine; 1989-08-02 to 1991-02-28; source msha-controller-operator-history
- **controller_controls_operator:** Geevor Inc → Jedco Minerals Inc; 1989-08-02 to 1991-02-28; source msha-controller-operator-history
- **operator_operates_mine:** Jedco Minerals Inc → Ocean #5 Mine; 1991-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mowry W Thomas → Ocean #5 Mine; 1991-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mowry W Thomas → Jedco Minerals Inc; 1991-03-01 to current/open; source msha-controller-operator-history