# Relationship history for MSHA mine 4201927

Current hierarchy: **Steve  Gilbert; Andrea  Jolley → Utah Iron, LLC → Comstock / Mountain Lion**

- 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

- **operator_operates_mine:** Gilbert Development Corp → Comstock / Mountain Lion; 1985-03-01 to 2013-07-18; source msha-controller-operator-history
- **controller_controls_mine:** Steve L  Gilbert → Comstock / Mountain Lion; 1985-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steve L  Gilbert → Gilbert Development Corp; 1985-03-01 to 2013-07-18; source msha-controller-operator-history
- **operator_operates_mine:** CML Metals → Comstock / Mountain Lion; 2013-07-19 to 2014-01-09; source msha-controller-operator-history
- **controller_controls_mine:** Luxor Capital Group et al → Comstock / Mountain Lion; 2013-07-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Luxor Capital Group et al → CML Metals; 2013-07-19 to 2014-01-09; source msha-controller-operator-history
- **controller_controls_operator:** Palladon Ventures Ltd et al → CML Metals; 2013-07-19 to 2014-01-09; source msha-controller-operator-history
- **operator_operates_mine:** Gilbert Development Corp. → Comstock / Mountain Lion; 2014-01-10 to 2020-05-27; source msha-controller-operator-history
- **controller_controls_operator:** Steve L  Gilbert → Gilbert Development Corp.; 2014-01-10 to 2020-05-27; source msha-controller-operator-history
- **operator_operates_mine:** Black Iron, LLC → Comstock / Mountain Lion; 2020-05-28 to 2020-09-28; source msha-controller-operator-history
- **controller_controls_mine:** Steve  Gilbert et al → Comstock / Mountain Lion; 2020-05-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steve  Gilbert et al → Black Iron, LLC; 2020-05-28 to 2020-09-28; source msha-controller-operator-history
- **controller_controls_operator:** Andrea  Jolley et al → Black Iron, LLC; 2020-05-28 to 2020-09-28; source msha-controller-operator-history
- **operator_operates_mine:** Utah Iron, LLC → Comstock / Mountain Lion; 2020-09-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Andrea  Jolley et al → Comstock / Mountain Lion; 2020-09-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Andrea  Jolley et al → Utah Iron, LLC; 2020-09-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steve  Gilbert et al → Utah Iron, LLC; 2020-09-29 to current/open; source msha-controller-operator-history