# Relationship history for MSHA mine 1514344

Current hierarchy: **Infinity Coal Corp → Hickory Hill Development Corp → No 3 Elkhorn 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Reese Elkhorn Coal Company Inc → No 3 Elkhorn Mine; 1983-11-01 to 1984-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Reese Teddy D → No 3 Elkhorn Mine; 1983-11-01 to 1984-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Reese Teddy D → Reese Elkhorn Coal Company Inc; 1983-11-01 to 1984-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Red Creek Coal Company → No 3 Elkhorn Mine; 1984-10-01 to 1986-01-01; source msha-controller-operator-history
- **controller_controls_mine:** Stapleton Gary R → No 3 Elkhorn Mine; 1984-10-01 to 1986-01-01; source msha-controller-operator-history
- **controller_controls_operator:** Stapleton Gary R → Red Creek Coal Company; 1984-10-01 to 1986-01-01; source msha-controller-operator-history
- **operator_operates_mine:** Merger Mining Inc → No 3 Elkhorn Mine; 1986-01-02 to 1987-06-09; source msha-controller-operator-history
- **controller_controls_mine:** Tramel Lewis & Bobby Cline → No 3 Elkhorn Mine; 1986-01-02 to 1988-12-06; source msha-controller-operator-history
- **controller_controls_operator:** Tramel Lewis & Bobby Cline → Merger Mining Inc; 1986-01-02 to 1987-06-09; source msha-controller-operator-history
- **controller_controls_mine:** France Kermit & Stanley Osborne → No 3 Elkhorn Mine; 1986-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Oakwood Mining Company → No 3 Elkhorn Mine; 1987-06-10 to 1988-03-21; source msha-controller-operator-history
- **controller_controls_operator:** France Kermit & Stanley Osborne → Oakwood Mining Company; 1987-06-10 to 1988-03-21; source msha-controller-operator-history
- **operator_operates_mine:** Three D Sales Company → No 3 Elkhorn Mine; 1988-03-22 to 1990-05-28; source msha-controller-operator-history
- **controller_controls_mine:** Pruitt Danny E & Terry Hurley → No 3 Elkhorn Mine; 1988-03-22 to 1990-05-28; source msha-controller-operator-history
- **controller_controls_operator:** Pruitt Danny E & Terry Hurley → Three D Sales Company; 1988-03-22 to 1990-05-28; source msha-controller-operator-history
- **controller_controls_mine:** Infinity Coal Corp → No 3 Elkhorn Mine; 1989-03-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hickory Hill Development Corp → No 3 Elkhorn Mine; 1990-05-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Infinity Coal Corp → Hickory Hill Development Corp; 1990-05-29 to current/open; source msha-controller-operator-history