# Relationship history for MSHA mine 1508177

Current hierarchy: **Essar Minerals Canada Limited → Liberty Management, LLC → Allen Preparation Plant  P-3**

- 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:** Adams Construction Corp → Allen Preparation Plant  P-3; 1975-03-31 to 1979-03-18; source msha-controller-operator-history
- **controller_controls_mine:** Adams Stuart H → Allen Preparation Plant  P-3; 1975-03-31 to 1979-03-18; source msha-controller-operator-history
- **controller_controls_operator:** Adams Stuart H → Adams Construction Corp; 1975-03-31 to 1979-03-18; source msha-controller-operator-history
- **controller_controls_mine:** Zapata Corp → Allen Preparation Plant  P-3; 1977-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Triple Elkhorn Mining Company Inc → Allen Preparation Plant  P-3; 1979-03-19 to 1985-04-23; source msha-controller-operator-history
- **controller_controls_operator:** Zapata Corp → Triple Elkhorn Mining Company Inc; 1979-03-19 to 1985-04-23; source msha-controller-operator-history
- **controller_controls_mine:** M Lynn  Parrish → Allen Preparation Plant  P-3; 1979-09-20 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jaco Mining Company Inc → Allen Preparation Plant  P-3; 1985-04-24 to 1990-07-08; source msha-controller-operator-history
- **controller_controls_operator:** M Lynn  Parrish → Jaco Mining Company Inc; 1985-04-24 to 1990-07-08; source msha-controller-operator-history
- **controller_controls_mine:** Burke John Jr → Allen Preparation Plant  P-3; 1989-01-31 to 1990-10-16; source msha-controller-operator-history
- **operator_operates_mine:** Emmanuel Processing Inc → Allen Preparation Plant  P-3; 1990-07-09 to 1990-10-16; source msha-controller-operator-history
- **controller_controls_operator:** Burke John Jr → Emmanuel Processing Inc; 1990-07-09 to 1990-10-16; source msha-controller-operator-history
- **operator_operates_mine:** Summit Processing Inc → Allen Preparation Plant  P-3; 1990-10-17 to 1991-03-18; source msha-controller-operator-history
- **controller_controls_mine:** Hobart  Anderson  et al → Allen Preparation Plant  P-3; 1990-10-17 to 1991-03-18; source msha-controller-operator-history
- **controller_controls_operator:** Hobart  Anderson  et al → Summit Processing Inc; 1990-10-17 to 1991-03-18; source msha-controller-operator-history
- **operator_operates_mine:** Summit Processing Inc → Allen Preparation Plant  P-3; 1991-03-19 to 2004-04-22; source msha-controller-operator-history
- **controller_controls_mine:** Cecil Eloise → Allen Preparation Plant  P-3; 1991-03-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cecil Eloise → Summit Processing Inc; 1991-03-19 to 2004-04-22; source msha-controller-operator-history
- **controller_controls_mine:** Larry E  King → Allen Preparation Plant  P-3; 1995-12-27 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jeffery A  Hoops → Allen Preparation Plant  P-3; 2001-03-01 to 2008-10-31; source msha-controller-operator-history
- **operator_operates_mine:** L. King Construction Inc → Allen Preparation Plant  P-3; 2004-04-23 to 2005-11-27; source msha-controller-operator-history
- **controller_controls_operator:** Larry E  King → L. King Construction Inc; 2004-04-23 to 2005-11-27; source msha-controller-operator-history
- **operator_operates_mine:** Frasure Creek Mining, LLC. → Allen Preparation Plant  P-3; 2005-11-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffery A  Hoops → Frasure Creek Mining, LLC.; 2005-11-28 to 2008-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth W  Woodring → Allen Preparation Plant  P-3; 2008-11-01 to 2010-04-06; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth W  Woodring → Frasure Creek Mining, LLC.; 2008-11-01 to 2010-04-06; source msha-controller-operator-history
- **controller_controls_mine:** Essar Minerals Canada Limited → Allen Preparation Plant  P-3; 2010-04-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Essar Minerals Canada Limited → Frasure Creek Mining, LLC.; 2010-04-07 to current/open; source msha-controller-operator-history