# Relationship history for MSHA mine 3102100

Current hierarchy: **Construction Partners Inc → FSC II, LLC → Camden Pit**

- 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:** Forbes Sand Company → Camden Pit; 1994-05-01 to 2011-01-31; source msha-controller-operator-history
- **controller_controls_mine:** Wilson L  Forbes III → Camden Pit; 1994-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wilson L  Forbes III → Forbes Sand Company; 1994-05-01 to 2011-01-31; source msha-controller-operator-history
- **controller_controls_mine:** Monica P  Parker et al → Camden Pit; 2004-08-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jeff G. Forbes, Owner → Camden Pit; 2011-02-01 to 2012-06-06; source msha-controller-operator-history
- **controller_controls_mine:** Jeffery G  Forbes → Camden Pit; 2011-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffery G  Forbes → Jeff G. Forbes, Owner; 2011-02-01 to 2012-06-06; source msha-controller-operator-history
- **operator_operates_mine:** RPC Contracting, Inc → Camden Pit; 2012-06-07 to 2021-12-19; source msha-controller-operator-history
- **controller_controls_operator:** Monica P  Parker et al → RPC Contracting, Inc; 2012-06-07 to 2021-12-19; source msha-controller-operator-history
- **controller_controls_operator:** Robert D  Parker et al → RPC Contracting, Inc; 2012-06-07 to 2021-12-19; source msha-controller-operator-history
- **controller_controls_mine:** Construction Partners Inc → Camden Pit; 2021-08-02 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** FSC II, LLC → Camden Pit; 2021-12-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Construction Partners Inc → FSC II, LLC; 2021-12-20 to current/open; source msha-controller-operator-history