# Relationship history for MSHA mine 1201978

Current hierarchy: **White Stallion Energy → Solar Sources Mining LLC → Solar Sources Preparation Plant**

- 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:** Felson  Bowman → Solar Sources Preparation Plant; 1975-06-01 to 2017-04-16; source msha-controller-operator-history
- **operator_operates_mine:** Solar Sources Mining LLC → Solar Sources Preparation Plant; 1985-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Felson  Bowman → Solar Sources Mining LLC; 1985-10-01 to 2017-04-16; source msha-controller-operator-history
- **controller_controls_mine:** Bowman Family Holdings Inc et al → Solar Sources Preparation Plant; 2017-04-17 to 2018-10-21; source msha-controller-operator-history
- **controller_controls_operator:** Bowman Family Holdings Inc et al → Solar Sources Mining LLC; 2017-04-17 to 2018-10-21; source msha-controller-operator-history
- **controller_controls_operator:** White Stallion-Solar LLC et al → Solar Sources Mining LLC; 2017-04-17 to 2018-10-21; source msha-controller-operator-history
- **controller_controls_mine:** White Stallion Energy → Solar Sources Preparation Plant; 2018-10-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** White Stallion Energy → Solar Sources Mining LLC; 2018-10-22 to current/open; source msha-controller-operator-history