# Relationship history for MSHA mine 4000012

Current hierarchy: **Global Stone Corp → Tenn Luttrell Company → Forks Of River**

- 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:** Tennessee Asphalt Company → Forks Of River; 1950-01-01 to 1987-12-08; source msha-controller-operator-history
- **controller_controls_mine:** W T  Ratliff Jr  et al → Forks Of River; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** W T  Ratliff Jr  et al → Tennessee Asphalt Company; 1950-01-01 to 1987-12-08; source msha-controller-operator-history
- **controller_controls_operator:** Donna R  Mc Allister  et al → Tennessee Asphalt Company; 1950-01-01 to 1987-12-08; source msha-controller-operator-history
- **operator_operates_mine:** Tenn Luttrell Company → Forks Of River; 1987-12-09 to 1988-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Penn-Va Corp  et al → Forks Of River; 1987-12-09 to 1988-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Penn-Va Corp  et al → Tenn Luttrell Company; 1987-12-09 to 1988-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Phillips & Jordan Inc → Forks Of River; 1988-07-01 to 1994-10-14; source msha-controller-operator-history
- **controller_controls_mine:** Phillips William T → Forks Of River; 1988-07-01 to 1994-10-14; source msha-controller-operator-history
- **controller_controls_operator:** Phillips William T → Phillips & Jordan Inc; 1988-07-01 to 1994-10-14; source msha-controller-operator-history
- **operator_operates_mine:** Tenn Luttrell Company → Forks Of River; 1994-10-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Global Stone Corp → Forks Of River; 1994-10-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Global Stone Corp → Tenn Luttrell Company; 1994-10-15 to current/open; source msha-controller-operator-history