# Relationship history for MSHA mine 4609073

Current hierarchy: **Patriot Coal Corporation → Gateway Eagle Coal Company, LLC → Sugar Maple 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:** Long Branch Energy Corporation → Sugar Maple Mine; 1989-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Douglas M  Epling → Sugar Maple Mine; 1994-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Peabody Energy Corporation → Sugar Maple Mine; 1998-03-26 to 2007-10-30; source msha-controller-operator-history
- **operator_operates_mine:** Eastern Associated Coal Corp. → Sugar Maple Mine; 2004-12-02 to 2005-02-28; source msha-controller-operator-history
- **controller_controls_operator:** Peabody Energy Corporation → Eastern Associated Coal Corp.; 2004-12-02 to 2005-02-28; source msha-controller-operator-history
- **operator_operates_mine:** Long Branch Energy → Sugar Maple Mine; 2005-03-01 to 2007-07-16; source msha-controller-operator-history
- **controller_controls_operator:** Long Branch Energy Corporation → Long Branch Energy; 2005-03-01 to 2007-07-16; source msha-controller-operator-history
- **operator_operates_mine:** Eastern Associated Coal LLC → Sugar Maple Mine; 2007-07-17 to 2008-07-15; source msha-controller-operator-history
- **controller_controls_operator:** Peabody Energy Corporation → Eastern Associated Coal LLC; 2007-07-17 to 2007-10-30; source msha-controller-operator-history
- **controller_controls_mine:** Patriot Coal Corporation → Sugar Maple Mine; 2007-10-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Patriot Coal Corporation → Eastern Associated Coal Corp.; 2007-10-31 to 2005-02-28; source msha-controller-operator-history
- **controller_controls_operator:** Patriot Coal Corporation → Eastern Associated Coal LLC; 2007-10-31 to 2008-07-15; source msha-controller-operator-history
- **operator_operates_mine:** Mountain Edge Mining Inc → Sugar Maple Mine; 2008-07-16 to 2011-05-30; source msha-controller-operator-history
- **controller_controls_operator:** Douglas M  Epling → Mountain Edge Mining Inc; 2008-07-16 to 2011-05-30; source msha-controller-operator-history
- **operator_operates_mine:** Lago Mining, LLC → Sugar Maple Mine; 2011-05-31 to 2011-12-06; source msha-controller-operator-history
- **controller_controls_mine:** Michael  Day → Sugar Maple Mine; 2011-05-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Day → Lago Mining, LLC; 2011-05-31 to 2011-12-06; source msha-controller-operator-history
- **controller_controls_mine:** Patriot Coal Corporation → Sugar Maple Mine; 2011-08-17 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Gateway Eagle Coal Company, LLC → Sugar Maple Mine; 2011-12-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Patriot Coal Corporation → Gateway Eagle Coal Company, LLC; 2011-12-07 to current/open; source msha-controller-operator-history