# Relationship history for MSHA mine 4608897

Current hierarchy: **Timothy  Lester → Richmond Works, Inc. → Copperhead No. 1**

- 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

- **controller_controls_mine:** James E  Trent → Copperhead No. 1; 2000-08-31 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Timothy  Lester → Copperhead No. 1; 2000-12-21 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Century Energy Corp → Copperhead No. 1; 2001-05-01 to 2002-08-04; source msha-controller-operator-history
- **controller_controls_operator:** James E  Trent → Century Energy Corp; 2001-05-01 to 2002-08-04; source msha-controller-operator-history
- **controller_controls_mine:** Thomas W  Lusk → Copperhead No. 1; 2001-06-22 to 2005-01-11; source msha-controller-operator-history
- **operator_operates_mine:** C.R.W. Coals, Inc. → Copperhead No. 1; 2002-08-05 to 2006-01-31; source msha-controller-operator-history
- **controller_controls_mine:** William  Reed → Copperhead No. 1; 2002-08-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William  Reed → C.R.W. Coals, Inc.; 2002-08-05 to 2006-01-31; source msha-controller-operator-history
- **controller_controls_mine:** MELISSA  CLINE → Copperhead No. 1; 2005-01-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** David M  Guidebeck et al → Copperhead No. 1; 2006-01-04 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Treasure Coast Coal, LLC. → Copperhead No. 1; 2006-02-01 to 2007-01-21; source msha-controller-operator-history
- **controller_controls_operator:** David M  Guidebeck et al → Treasure Coast Coal, LLC.; 2006-02-01 to 2007-01-21; source msha-controller-operator-history
- **controller_controls_operator:** James M  Claassen et al → Treasure Coast Coal, LLC.; 2006-02-01 to 2007-01-21; source msha-controller-operator-history
- **operator_operates_mine:** Glow Worm Coal Company → Copperhead No. 1; 2007-01-22 to 2008-10-07; source msha-controller-operator-history
- **controller_controls_operator:** MELISSA  CLINE → Glow Worm Coal Company; 2007-01-22 to 2008-10-07; source msha-controller-operator-history
- **controller_controls_operator:** Thomas W  Lusk → Glow Worm Coal Company; 2007-01-22 to 2005-01-11; source msha-controller-operator-history
- **operator_operates_mine:** Richmond Works, Inc. → Copperhead No. 1; 2008-10-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Timothy  Lester → Richmond Works, Inc.; 2008-10-08 to current/open; source msha-controller-operator-history