# Relationship history for MSHA mine 1507441

Current hierarchy: **James L  Bevins → Fools Gold Energy Corp → No1**

- 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:** Smallwood James A → No1; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tripod Coal Company Inc → No1; 1974-10-15 to 1978-12-27; source msha-controller-operator-history
- **controller_controls_mine:** Taylor Joe → No1; 1974-10-15 to 1978-12-27; source msha-controller-operator-history
- **controller_controls_operator:** Taylor Joe → Tripod Coal Company Inc; 1974-10-15 to 1978-12-27; source msha-controller-operator-history
- **operator_operates_mine:** Smallwood Coal Company → No1; 1978-12-28 to 1980-10-15; source msha-controller-operator-history
- **controller_controls_operator:** Smallwood James A → Smallwood Coal Company; 1978-12-28 to 1980-10-15; source msha-controller-operator-history
- **operator_operates_mine:** Comer-Davidson Coal Company Inc → No1; 1980-10-16 to 1984-02-29; source msha-controller-operator-history
- **controller_controls_mine:** Davidson Michael D → No1; 1980-10-16 to 1984-02-29; source msha-controller-operator-history
- **controller_controls_operator:** Davidson Michael D → Comer-Davidson Coal Company Inc; 1980-10-16 to 1984-02-29; source msha-controller-operator-history
- **operator_operates_mine:** Taylor Hill Coal Company → No1; 1984-03-01 to 1989-04-09; source msha-controller-operator-history
- **controller_controls_mine:** Salyers Gene & William Stiltner → No1; 1984-03-01 to 1990-05-28; source msha-controller-operator-history
- **controller_controls_operator:** Salyers Gene & William Stiltner → Taylor Hill Coal Company; 1984-03-01 to 1989-04-09; source msha-controller-operator-history
- **operator_operates_mine:** Fools Gold Energy Corp → No1; 1989-04-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James L  Bevins → No1; 1989-04-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James L  Bevins → Fools Gold Energy Corp; 1989-04-10 to current/open; source msha-controller-operator-history