# Relationship history for MSHA mine 1511155

Current hierarchy: **Carl  Kirk → Scorpio Coal Company Inc → #7**

- 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:** Carl  Kirk et al → #7; 1975-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mims Frank & Jim Griffith → #7; 1977-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** C & B Coal Company → #7; 1978-04-01 to 1981-12-10; source msha-controller-operator-history
- **controller_controls_operator:** Mims Frank & Jim Griffith → C & B Coal Company; 1978-04-01 to 1981-12-10; source msha-controller-operator-history
- **operator_operates_mine:** Tripple P Mining Corp → #7; 1981-12-11 to 1982-12-19; source msha-controller-operator-history
- **controller_controls_mine:** Potter A C → #7; 1981-12-11 to 1982-12-19; source msha-controller-operator-history
- **controller_controls_operator:** Potter A C → Tripple P Mining Corp; 1981-12-11 to 1982-12-19; source msha-controller-operator-history
- **operator_operates_mine:** Craft & Blanken Coal Company → #7; 1982-12-20 to 1983-12-27; source msha-controller-operator-history
- **controller_controls_mine:** Craft Ewing & Jerry Blanken → #7; 1982-12-20 to 1983-12-27; source msha-controller-operator-history
- **controller_controls_operator:** Craft Ewing & Jerry Blanken → Craft & Blanken Coal Company; 1982-12-20 to 1983-12-27; source msha-controller-operator-history
- **operator_operates_mine:** Amber Coal Company Inc → #7; 1983-12-28 to 1988-03-02; source msha-controller-operator-history
- **controller_controls_operator:** Carl  Kirk et al → Amber Coal Company Inc; 1983-12-28 to 1988-03-02; source msha-controller-operator-history
- **controller_controls_mine:** Parsley Kay → #7; 1987-11-24 to 1989-05-18; source msha-controller-operator-history
- **operator_operates_mine:** Radec Mining Inc → #7; 1988-03-03 to 1988-09-26; source msha-controller-operator-history
- **controller_controls_operator:** Parsley Kay → Radec Mining Inc; 1988-03-03 to 1988-09-26; source msha-controller-operator-history
- **operator_operates_mine:** Danmar Coal Company → #7; 1988-09-27 to 1992-03-30; source msha-controller-operator-history
- **controller_controls_mine:** Smith Daniel F → #7; 1988-09-27 to 1992-03-30; source msha-controller-operator-history
- **controller_controls_operator:** Smith Daniel F → Danmar Coal Company; 1988-09-27 to 1992-03-30; source msha-controller-operator-history
- **controller_controls_mine:** Carl  Kirk et al → #7; 1990-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Scorpio Coal Company Inc → #7; 1992-03-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carl  Kirk et al → Scorpio Coal Company Inc; 1992-03-31 to current/open; source msha-controller-operator-history