# Relationship history for MSHA mine 1518138

Current hierarchy: **Ronald G  Goff → Rama Development Company Inc. → No. 4**

- 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:** King Brothers Coal Inc → No. 4; 1999-02-01 to 1999-10-10; source msha-controller-operator-history
- **controller_controls_mine:** Larry E  King → No. 4; 1999-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry E  King → King Brothers Coal Inc; 1999-02-01 to 1999-10-10; source msha-controller-operator-history
- **controller_controls_mine:** Joey  Taylor → No. 4; 1999-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Grace Mining Inc → No. 4; 1999-10-11 to 2001-08-02; source msha-controller-operator-history
- **controller_controls_operator:** Joey  Taylor → Grace Mining Inc; 1999-10-11 to 2001-08-02; source msha-controller-operator-history
- **controller_controls_mine:** Ronald G  Goff → No. 4; 2000-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Timothy P  Smith → No. 4; 2000-12-04 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** American Mining & Manufacturing Corp → No. 4; 2001-08-03 to 2003-08-03; source msha-controller-operator-history
- **controller_controls_operator:** Timothy P  Smith → American Mining & Manufacturing Corp; 2001-08-03 to 2003-08-03; source msha-controller-operator-history
- **controller_controls_mine:** James S  Hager → No. 4; 2002-06-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Coal Services LLC → No. 4; 2003-08-04 to 2004-02-01; source msha-controller-operator-history
- **controller_controls_operator:** James S  Hager → Coal Services LLC; 2003-08-04 to 2004-02-01; source msha-controller-operator-history
- **operator_operates_mine:** Rama Development Company Inc. → No. 4; 2004-02-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ronald G  Goff → Rama Development Company Inc.; 2004-02-02 to current/open; source msha-controller-operator-history