# Relationship history for MSHA mine 2302109

Current hierarchy: **Michael K Farmer; Elliott (Bud) E Farmer → Capital Materials, LLC → Lincoln Portable**

- 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

- **operator_operates_mine:** Roark Creek Quarry Company → Lincoln Portable; 1994-08-01 to 1999-05-02; source msha-controller-operator-history
- **controller_controls_mine:** Terry W  Wilson → Lincoln Portable; 1994-08-01 to 1999-05-02; source msha-controller-operator-history
- **controller_controls_operator:** Terry W  Wilson → Roark Creek Quarry Company; 1994-08-01 to 1999-05-02; source msha-controller-operator-history
- **controller_controls_mine:** Ashland Inc → Lincoln Portable; 1998-02-03 to 2006-08-27; source msha-controller-operator-history
- **operator_operates_mine:** Apac-Missouri, Inc. → Lincoln Portable; 1999-05-03 to 2016-05-11; source msha-controller-operator-history
- **controller_controls_operator:** Ashland Inc → Apac-Missouri, Inc.; 1999-05-03 to 2006-08-27; source msha-controller-operator-history
- **controller_controls_mine:** CRH PLC → Lincoln Portable; 2006-08-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CRH PLC → Apac-Missouri, Inc.; 2006-08-28 to 2016-05-11; source msha-controller-operator-history
- **operator_operates_mine:** Capital Materials, LLC → Lincoln Portable; 2016-05-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Elliott (Bud) E Farmer  et al → Lincoln Portable; 2016-05-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Elliott (Bud) E Farmer  et al → Capital Materials, LLC; 2016-05-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael K Farmer  et al → Capital Materials, LLC; 2016-05-12 to current/open; source msha-controller-operator-history