# Relationship history for MSHA mine 4404703

Current hierarchy: **Jerry  Skeens; Eddie  Skeens → Highlander Coal Corp → #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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** R & H Coal Company → #1; 1977-05-01 to 1989-07-31; source msha-controller-operator-history
- **controller_controls_mine:** Hall Luther R & James C Rife → #1; 1977-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hall Luther R & James C Rife → R & H Coal Company; 1977-05-01 to 1989-07-31; source msha-controller-operator-history
- **operator_operates_mine:** Highlander Coal Corp → #1; 1989-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Eddie  Skeens  et al → #1; 1989-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eddie  Skeens  et al → Highlander Coal Corp; 1989-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerry  Skeens  et al → Highlander Coal Corp; 1989-08-01 to current/open; source msha-controller-operator-history