# Relationship history for MSHA mine 1511569

Current hierarchy: **Dennis  Ratliff; Timmy  Ratliff → A & R Coal Corp → No 7-A**

- 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:** United  Company → No 7-A; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Sonny J  Smith → No 7-A; 1975-06-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Clevinger Gregory-Dennis & Ellis Et Al → No 7-A; 1977-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** International Minerals & Chemical Corp → No 7-A; 1977-07-11 to 1983-04-02; source msha-controller-operator-history
- **operator_operates_mine:** Triple C Coal Company → No 7-A; 1978-09-01 to 1979-10-09; source msha-controller-operator-history
- **controller_controls_operator:** Clevinger Gregory-Dennis & Ellis Et Al → Triple C Coal Company; 1978-09-01 to 1979-10-09; source msha-controller-operator-history
- **operator_operates_mine:** Southern Elkhorn Coal Corp → No 7-A; 1979-10-10 to 1981-09-30; source msha-controller-operator-history
- **controller_controls_operator:** International Minerals & Chemical Corp → Southern Elkhorn Coal Corp; 1979-10-10 to 1981-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Dennis  Ratliff et al → No 7-A; 1981-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Bee Bee Tee Coal Company Inc → No 7-A; 1981-10-01 to 1983-02-15; source msha-controller-operator-history
- **controller_controls_mine:** Browning Scott → No 7-A; 1981-10-01 to 1983-02-15; source msha-controller-operator-history
- **controller_controls_operator:** Browning Scott → Bee Bee Tee Coal Company Inc; 1981-10-01 to 1983-02-15; source msha-controller-operator-history
- **operator_operates_mine:** Wellmore Coal Corp → No 7-A; 1983-02-16 to 1984-08-20; source msha-controller-operator-history
- **controller_controls_operator:** United  Company → Wellmore Coal Corp; 1983-02-16 to 1984-08-20; source msha-controller-operator-history
- **operator_operates_mine:** Welmac Coal Inc → No 7-A; 1984-08-21 to 1985-04-17; source msha-controller-operator-history
- **controller_controls_mine:** Bill  Nichols → No 7-A; 1984-08-21 to 1985-04-17; source msha-controller-operator-history
- **controller_controls_operator:** Bill  Nichols → Welmac Coal Inc; 1984-08-21 to 1985-04-17; source msha-controller-operator-history
- **operator_operates_mine:** Triple S Coal Company Inc → No 7-A; 1985-04-18 to 1993-03-22; source msha-controller-operator-history
- **controller_controls_operator:** Sonny J  Smith → Triple S Coal Company Inc; 1985-04-18 to 1993-03-22; source msha-controller-operator-history
- **operator_operates_mine:** A & R Coal Corp → No 7-A; 1993-03-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dennis  Ratliff et al → A & R Coal Corp; 1993-03-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Timmy  Ratliff et al → A & R Coal Corp; 1993-03-23 to current/open; source msha-controller-operator-history