# Relationship history for MSHA mine 1513873

Current hierarchy: **Stephen C  Skidmore → Canfield Energy Inc → Canfield #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:** Terry  McCreary et al → Canfield #2; 1982-05-07 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Little Poplar Creek Heavy Equip Sales & Service → Canfield #2; 1983-01-01 to 1983-06-26; source msha-controller-operator-history
- **controller_controls_operator:** Terry  McCreary et al → Little Poplar Creek Heavy Equip Sales & Service; 1983-01-01 to 1983-06-26; source msha-controller-operator-history
- **operator_operates_mine:** Terco Inc → Canfield #2; 1983-06-27 to 1985-02-20; source msha-controller-operator-history
- **controller_controls_mine:** Randal  Lawson → Canfield #2; 1983-06-27 to 1985-02-20; source msha-controller-operator-history
- **controller_controls_operator:** Randal  Lawson → Terco Inc; 1983-06-27 to 1985-02-20; source msha-controller-operator-history
- **controller_controls_mine:** Terry  McCreary et al → Canfield #2; 1985-01-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Terco Inc → Canfield #2; 1985-02-21 to 1990-09-20; source msha-controller-operator-history
- **controller_controls_operator:** Terry  McCreary et al → Terco Inc; 1985-02-21 to 1990-09-20; source msha-controller-operator-history
- **controller_controls_mine:** Lee  Congleton → Canfield #2; 1985-09-17 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Sugartree Coal Company Inc → Canfield #2; 1990-09-21 to 1993-05-25; source msha-controller-operator-history
- **controller_controls_mine:** John P  Inman → Canfield #2; 1990-09-21 to 1993-05-25; source msha-controller-operator-history
- **controller_controls_operator:** John P  Inman → Sugartree Coal Company Inc; 1990-09-21 to 1993-05-25; source msha-controller-operator-history
- **controller_controls_mine:** Stephen C  Skidmore → Canfield #2; 1993-02-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Richland Coal Company → Canfield #2; 1993-05-26 to 1993-12-29; source msha-controller-operator-history
- **controller_controls_operator:** Lee  Congleton → Richland Coal Company; 1993-05-26 to 1993-12-29; source msha-controller-operator-history
- **operator_operates_mine:** Canfield Energy Inc → Canfield #2; 1993-12-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stephen C  Skidmore → Canfield Energy Inc; 1993-12-30 to current/open; source msha-controller-operator-history