# Relationship history for MSHA mine 4406714

Current hierarchy: **Shelton David → Lightning Energy Inc → No 1**

- 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

- **operator_operates_mine:** Smurfco Inc → No 1; 1992-12-01 to 1993-09-29; source msha-controller-operator-history
- **controller_controls_mine:** Raymond  Cline → No 1; 1992-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Raymond  Cline → Smurfco Inc; 1992-12-01 to 1993-09-29; source msha-controller-operator-history
- **operator_operates_mine:** Teresa B Coal Company → No 1; 1993-09-30 to 1994-09-27; source msha-controller-operator-history
- **controller_controls_mine:** Dye James Harry → No 1; 1993-09-30 to 1994-09-27; source msha-controller-operator-history
- **controller_controls_operator:** Dye James Harry → Teresa B Coal Company; 1993-09-30 to 1994-09-27; source msha-controller-operator-history
- **operator_operates_mine:** Lightning Energy Inc → No 1; 1994-09-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Shelton David → No 1; 1994-09-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shelton David → Lightning Energy Inc; 1994-09-28 to current/open; source msha-controller-operator-history