# Relationship history for MSHA mine 1509784

Current hierarchy: **Ricky D  Kirk; Jerry  Wells Jr → Cheyenne Resources Inc → Cheyenne Loadout**

- 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:** Paul J  Sturgill → Cheyenne Loadout; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Richard  Hurley → Cheyenne Loadout; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hi Energy Inc → Cheyenne Loadout; 1976-06-02 to 1977-06-22; source msha-controller-operator-history
- **controller_controls_operator:** Richard  Hurley → Hi Energy Inc; 1976-06-02 to 1977-06-22; source msha-controller-operator-history
- **operator_operates_mine:** Golden Oak Mining Company Inc → Cheyenne Loadout; 1977-06-23 to 1980-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Paul J  Sturgill → Golden Oak Mining Company Inc; 1977-06-23 to 1980-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Golden Oak Mining Company Inc → Cheyenne Loadout; 1981-01-01 to 1989-07-20; source msha-controller-operator-history
- **controller_controls_mine:** Reading & Bates Corp → Cheyenne Loadout; 1981-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Reading & Bates Corp → Golden Oak Mining Company Inc; 1981-01-01 to 1989-07-20; source msha-controller-operator-history
- **operator_operates_mine:** Golden Oak Mining Company L P → Cheyenne Loadout; 1989-07-21 to 1992-12-27; source msha-controller-operator-history
- **controller_controls_mine:** GOM Management Inc et al → Cheyenne Loadout; 1989-07-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** GOM Management Inc et al → Golden Oak Mining Company L P; 1989-07-21 to 1992-12-27; source msha-controller-operator-history
- **controller_controls_operator:** First Capital Corp of Chicago  et al → Golden Oak Mining Company L P; 1989-07-21 to 1992-12-27; source msha-controller-operator-history
- **controller_controls_mine:** Florida Progress Corporation → Cheyenne Loadout; 1989-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Kentucky May Coal Company Inc → Cheyenne Loadout; 1992-12-28 to 1999-02-24; source msha-controller-operator-history
- **controller_controls_operator:** Florida Progress Corporation → Kentucky May Coal Company Inc; 1992-12-28 to 1999-02-24; source msha-controller-operator-history
- **operator_operates_mine:** Cheyenne Resources Inc → Cheyenne Loadout; 1999-02-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jerry  Wells Jr  et al → Cheyenne Loadout; 1999-02-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerry  Wells Jr  et al → Cheyenne Resources Inc; 1999-02-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ricky D  Kirk  et al → Cheyenne Resources Inc; 1999-02-25 to current/open; source msha-controller-operator-history