# Relationship history for MSHA mine 1508672

Current hierarchy: **Finn Earl W → Pioneer Corp → Pioneer J-2 Surface**

- 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:** Finn Earl W → Pioneer J-2 Surface; 1974-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Kentucky Cardinal Construction Company → Pioneer J-2 Surface; 1975-01-01 to 1976-04-05; source msha-controller-operator-history
- **controller_controls_mine:** Ranier H--J P Wolley & C T Lisle → Pioneer J-2 Surface; 1975-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ranier H--J P Wolley & C T Lisle → Kentucky Cardinal Construction Company; 1975-01-01 to 1976-04-05; source msha-controller-operator-history
- **operator_operates_mine:** Wells Coal Company Inc → Pioneer J-2 Surface; 1976-04-06 to 1976-10-06; source msha-controller-operator-history
- **controller_controls_mine:** Wells Paul S → Pioneer J-2 Surface; 1976-04-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wells Paul S → Wells Coal Company Inc; 1976-04-06 to 1976-10-06; source msha-controller-operator-history
- **operator_operates_mine:** Brewco Leasing & Mining Company → Pioneer J-2 Surface; 1976-10-07 to 1977-04-13; source msha-controller-operator-history
- **controller_controls_mine:** Bathalter Joe S → Pioneer J-2 Surface; 1976-10-07 to 1977-04-13; source msha-controller-operator-history
- **controller_controls_operator:** Bathalter Joe S → Brewco Leasing & Mining Company; 1976-10-07 to 1977-04-13; source msha-controller-operator-history
- **operator_operates_mine:** Pioneer Corp → Pioneer J-2 Surface; 1977-04-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Finn Earl W → Pioneer Corp; 1977-04-14 to current/open; source msha-controller-operator-history