# Relationship history for MSHA mine 4608219

Current hierarchy: **James River Coal Company → Rockhouse Creek Development Corp. → Graywolfe No. 2**

- 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:** Pe Dan Mining Company Inc → Graywolfe No. 2; 1992-09-01 to 1993-11-21; source msha-controller-operator-history
- **controller_controls_mine:** White Danny → Graywolfe No. 2; 1992-09-01 to 1993-11-21; source msha-controller-operator-history
- **controller_controls_operator:** White Danny → Pe Dan Mining Company Inc; 1992-09-01 to 1993-11-21; source msha-controller-operator-history
- **controller_controls_mine:** Endicott Shelby R → Graywolfe No. 2; 1993-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Gray Wolf Mining Company → Graywolfe No. 2; 1993-11-22 to 2004-03-24; source msha-controller-operator-history
- **controller_controls_operator:** Endicott Shelby R → Gray Wolf Mining Company; 1993-11-22 to 2004-03-24; source msha-controller-operator-history
- **controller_controls_mine:** International Industries Inc → Graywolfe No. 2; 1999-06-01 to 2007-07-15; source msha-controller-operator-history
- **operator_operates_mine:** Rockhouse Creek Development Corp. → Graywolfe No. 2; 2004-03-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** International Industries Inc → Rockhouse Creek Development Corp.; 2004-03-25 to 2007-07-15; source msha-controller-operator-history
- **controller_controls_mine:** International Resources LLC → Graywolfe No. 2; 2007-07-16 to 2011-04-17; source msha-controller-operator-history
- **controller_controls_operator:** International Resources LLC → Rockhouse Creek Development Corp.; 2007-07-16 to 2011-04-17; source msha-controller-operator-history
- **controller_controls_mine:** James River Coal Company → Graywolfe No. 2; 2011-04-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James River Coal Company → Rockhouse Creek Development Corp.; 2011-04-18 to current/open; source msha-controller-operator-history