# Relationship history for MSHA mine 1517385

Current hierarchy: **Kenneth L  Farley → Dry Fork Energy Inc → Mine #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:** Salmons Carlos → Mine #1; 1991-07-22 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Timper Mining Company Inc → Mine #1; 1993-04-01 to 1994-01-06; source msha-controller-operator-history
- **controller_controls_operator:** Salmons Carlos → Timper Mining Company Inc; 1993-04-01 to 1994-01-06; source msha-controller-operator-history
- **operator_operates_mine:** Circle A Mining Inc → Mine #1; 1994-01-07 to 1995-05-23; source msha-controller-operator-history
- **controller_controls_mine:** Adkins Robert → Mine #1; 1994-01-07 to 1996-01-15; source msha-controller-operator-history
- **controller_controls_operator:** Adkins Robert → Circle A Mining Inc; 1994-01-07 to 1995-05-23; source msha-controller-operator-history
- **operator_operates_mine:** Dry Fork Energy Inc → Mine #1; 1995-05-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth L  Farley et al → Mine #1; 1995-05-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth L  Farley et al → Dry Fork Energy Inc; 1995-05-24 to current/open; source msha-controller-operator-history