# Relationship history for MSHA mine 4609440

Current hierarchy: **Francis H  McCullough; Lewis W  Davis → Spring Creek Energy Company, LLC → Rock Camp Surface 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

- **controller_controls_mine:** Lewis W  Davis et al → Rock Camp Surface No. 1; 2006-11-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Spring Creek Energy Company, LLC → Rock Camp Surface No. 1; 2012-02-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lewis W  Davis et al → Spring Creek Energy Company, LLC; 2012-02-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Francis H  McCullough et al → Spring Creek Energy Company, LLC; 2012-02-28 to current/open; source msha-controller-operator-history