# Relationship history for MSHA mine 2601864

Current hierarchy: **Elquist James M & John D → Elquist Mining Inc → Bad Luck Mine**

- 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:** Elquist James M & John D Et Al → Bad Luck Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Stellar International Of Nevada Inc → Bad Luck Mine; 1950-01-01 to 1984-08-28; source msha-controller-operator-history
- **controller_controls_mine:** Mawson R J → Bad Luck Mine; 1950-01-01 to 1984-08-28; source msha-controller-operator-history
- **controller_controls_operator:** Mawson R J → Stellar International Of Nevada Inc; 1950-01-01 to 1984-08-28; source msha-controller-operator-history
- **operator_operates_mine:** Elquist Mining Inc → Bad Luck Mine; 1984-08-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Elquist James M & John D Et Al → Elquist Mining Inc; 1984-08-29 to current/open; source msha-controller-operator-history