# Relationship history for MSHA mine 3304321

Current hierarchy: **Jeffrey R  Sidwell → Sidwell Materials Inc. → Apex Quarry**

- 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:** Olen O  Miller → Apex Quarry; 1982-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Miller Mining Inc → Apex Quarry; 1994-01-01 to 1999-07-18; source msha-controller-operator-history
- **controller_controls_operator:** Olen O  Miller → Miller Mining Inc; 1994-01-01 to 1999-07-18; source msha-controller-operator-history
- **controller_controls_mine:** Jeffrey R  Sidwell → Apex Quarry; 1996-02-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John  Hess → Apex Quarry; 1998-03-02 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Copperhead Coal Company → Apex Quarry; 1999-07-19 to 2001-04-24; source msha-controller-operator-history
- **controller_controls_operator:** John  Hess → Copperhead Coal Company; 1999-07-19 to 2001-04-24; source msha-controller-operator-history
- **operator_operates_mine:** Germano Coal Co., Inc. → Apex Quarry; 2001-04-25 to 2005-12-20; source msha-controller-operator-history
- **controller_controls_mine:** Detweiler Joe J → Apex Quarry; 2001-04-25 to 2004-06-20; source msha-controller-operator-history
- **controller_controls_operator:** Detweiler Joe J → Germano Coal Co., Inc.; 2001-04-25 to 2004-06-20; source msha-controller-operator-history
- **controller_controls_mine:** Dan E  Bray → Apex Quarry; 2004-06-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dan E  Bray → Germano Coal Co., Inc.; 2004-06-21 to 2005-12-20; source msha-controller-operator-history
- **operator_operates_mine:** Eastern Ohio Coal Company, LLC → Apex Quarry; 2005-12-21 to 2007-09-11; source msha-controller-operator-history
- **controller_controls_mine:** Gilder Office For Growth → Apex Quarry; 2005-12-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gilder Office For Growth → Eastern Ohio Coal Company, LLC; 2005-12-21 to 2007-09-11; source msha-controller-operator-history
- **controller_controls_operator:** Benjamin  Wurts et al → Eastern Ohio Coal Company, LLC; 2005-12-21 to 2007-09-11; source msha-controller-operator-history
- **operator_operates_mine:** Mineral Trading Co., LLC → Apex Quarry; 2007-09-12 to 2011-10-19; source msha-controller-operator-history
- **controller_controls_mine:** Jonathan  Lasko → Apex Quarry; 2007-09-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jonathan  Lasko → Mineral Trading Co., LLC; 2007-09-12 to 2011-10-19; source msha-controller-operator-history
- **operator_operates_mine:** Sidwell Materials Inc. → Apex Quarry; 2011-10-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffrey R  Sidwell → Sidwell Materials Inc.; 2011-10-20 to current/open; source msha-controller-operator-history