# Relationship history for MSHA mine 1512198

Current hierarchy: **Bramhall Donald → Chapel Leasing Inc → Tipple No 2**

- 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 → Tipple No 2; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** International Minerals & Chemical Corp → Tipple No 2; 1977-07-11 to 1983-04-02; source msha-controller-operator-history
- **operator_operates_mine:** Southern Elkhorn Coal Corp → Tipple No 2; 1980-01-01 to 1983-04-02; source msha-controller-operator-history
- **controller_controls_operator:** International Minerals & Chemical Corp → Southern Elkhorn Coal Corp; 1980-01-01 to 1983-04-02; source msha-controller-operator-history
- **controller_controls_mine:** Potter David W & Michael L → Tipple No 2; 1981-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Wellmore Coal Corp → Tipple No 2; 1983-04-03 to 1984-05-28; source msha-controller-operator-history
- **controller_controls_operator:** United  Company → Wellmore Coal Corp; 1983-04-03 to 1984-05-28; source msha-controller-operator-history
- **operator_operates_mine:** Kentucky-Virginia Coal Corp → Tipple No 2; 1984-05-29 to 1986-12-18; source msha-controller-operator-history
- **controller_controls_operator:** Potter David W & Michael L → Kentucky-Virginia Coal Corp; 1984-05-29 to 1986-12-18; source msha-controller-operator-history
- **controller_controls_mine:** Longworth G Randall → Tipple No 2; 1986-10-27 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Heritage Fuel Inc → Tipple No 2; 1986-12-19 to 1988-11-14; source msha-controller-operator-history
- **controller_controls_operator:** Longworth G Randall → Heritage Fuel Inc; 1986-12-19 to 1988-11-14; source msha-controller-operator-history
- **operator_operates_mine:** Chapel Leasing Inc → Tipple No 2; 1988-11-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bramhall Donald Et Al → Tipple No 2; 1988-11-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bramhall Donald Et Al → Chapel Leasing Inc; 1988-11-15 to current/open; source msha-controller-operator-history