# Relationship history for MSHA mine 1516127

Current hierarchy: **Anthony  McPeek → Arc Energies Inc → No 6**

- 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

- **controller_controls_mine:** Howell Corporation → No 6; 1977-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** El Paso Energy Corp → No 6; 1979-06-29 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Lake Coal Company Inc → No 6; 1987-08-01 to 1989-05-03; source msha-controller-operator-history
- **controller_controls_operator:** Howell Corporation → Lake Coal Company Inc; 1987-08-01 to 1989-05-03; source msha-controller-operator-history
- **controller_controls_mine:** Anthony  McPeek → No 6; 1988-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Enterprise Coal Company → No 6; 1989-05-04 to 1989-06-06; source msha-controller-operator-history
- **controller_controls_operator:** El Paso Energy Corp → Enterprise Coal Company; 1989-05-04 to 1989-06-06; source msha-controller-operator-history
- **operator_operates_mine:** Arc Energies Inc → No 6; 1989-06-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Anthony  McPeek → Arc Energies Inc; 1989-06-07 to current/open; source msha-controller-operator-history