# Relationship history for MSHA mine 1516729

Current hierarchy: **Dennis  Ratliff; Timmy  Ratliff → Chenoa Coal Inc → #2 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:** Burke John Jr → #2 Mine; 1986-06-03 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Emmanuel Coal Company Inc → #2 Mine; 1989-09-01 to 1990-09-26; source msha-controller-operator-history
- **controller_controls_operator:** Burke John Jr → Emmanuel Coal Company Inc; 1989-09-01 to 1990-09-26; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth  Whitt → #2 Mine; 1989-12-26 to 1993-04-29; source msha-controller-operator-history
- **controller_controls_mine:** Timmy  Ratliff et al → #2 Mine; 1990-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** A & A Francis Energy Inc → #2 Mine; 1990-09-27 to 1991-06-11; source msha-controller-operator-history
- **controller_controls_mine:** Curtis  Francis → #2 Mine; 1990-09-27 to 1991-06-11; source msha-controller-operator-history
- **controller_controls_operator:** Curtis  Francis → A & A Francis Energy Inc; 1990-09-27 to 1991-06-11; source msha-controller-operator-history
- **operator_operates_mine:** J & K Mining Inc → #2 Mine; 1991-06-12 to 1993-04-25; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth  Whitt → J & K Mining Inc; 1991-06-12 to 1993-04-25; source msha-controller-operator-history
- **operator_operates_mine:** Black Magnum Inc → #2 Mine; 1993-04-26 to 1994-02-14; source msha-controller-operator-history
- **controller_controls_mine:** Banks Dennis → #2 Mine; 1993-04-26 to 1994-02-14; source msha-controller-operator-history
- **controller_controls_operator:** Banks Dennis → Black Magnum Inc; 1993-04-26 to 1994-02-14; source msha-controller-operator-history
- **operator_operates_mine:** Chenoa Coal Inc → #2 Mine; 1994-02-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Timmy  Ratliff et al → Chenoa Coal Inc; 1994-02-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dennis  Ratliff et al → Chenoa Coal Inc; 1994-02-15 to current/open; source msha-controller-operator-history