# Relationship history for MSHA mine 1514403

Current hierarchy: **Bill  Lykins → Bill Lykins Coal Company Inc → Surface #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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Massey Energy Company → Surface #2; 1979-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Templeman & Adkins Coal Corp → Surface #2; 1984-01-01 to 1985-01-14; source msha-controller-operator-history
- **controller_controls_mine:** Adkins John A & Michael Templeman → Surface #2; 1984-01-01 to 1985-01-14; source msha-controller-operator-history
- **controller_controls_operator:** Adkins John A & Michael Templeman → Templeman & Adkins Coal Corp; 1984-01-01 to 1985-01-14; source msha-controller-operator-history
- **operator_operates_mine:** Templeman & Adkins Coal Company Inc → Surface #2; 1985-01-15 to 1985-06-12; source msha-controller-operator-history
- **controller_controls_mine:** Templeman Michael → Surface #2; 1985-01-15 to 1986-10-19; source msha-controller-operator-history
- **controller_controls_operator:** Templeman Michael → Templeman & Adkins Coal Company Inc; 1985-01-15 to 1985-06-12; source msha-controller-operator-history
- **operator_operates_mine:** Clark Elkhorn Coal Company Inc → Surface #2; 1985-06-13 to 1985-09-04; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Clark Elkhorn Coal Company Inc; 1985-06-13 to 1985-09-04; source msha-controller-operator-history
- **operator_operates_mine:** Templeman & Adkins Coal Company Inc → Surface #2; 1985-09-05 to 1986-10-19; source msha-controller-operator-history
- **controller_controls_operator:** Templeman Michael → Templeman & Adkins Coal Company Inc; 1985-09-05 to 1986-10-19; source msha-controller-operator-history
- **operator_operates_mine:** Bill Lykins Coal Company Inc → Surface #2; 1986-10-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bill  Lykins → Surface #2; 1986-10-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bill  Lykins → Bill Lykins Coal Company Inc; 1986-10-20 to current/open; source msha-controller-operator-history