# Relationship history for MSHA mine 4407032

Current hierarchy: **John E  Potter → L J Contracting, LLC → #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:** Dot-Air Coal Corp → #1; 2001-06-01 to 2002-04-07; source msha-controller-operator-history
- **controller_controls_mine:** Billy Ray  Dotson → #1; 2001-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Billy Ray  Dotson → Dot-Air Coal Corp; 2001-06-01 to 2002-04-07; source msha-controller-operator-history
- **controller_controls_mine:** Terry L  Matney → #1; 2001-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** War Eagle Energy, Inc. → #1; 2002-04-08 to 2002-11-06; source msha-controller-operator-history
- **controller_controls_operator:** Terry L  Matney → War Eagle Energy, Inc.; 2002-04-08 to 2002-11-06; source msha-controller-operator-history
- **operator_operates_mine:** L J Contracting, LLC → #1; 2002-11-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John E  Potter et al → #1; 2002-11-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John E  Potter et al → L J Contracting, LLC; 2002-11-07 to current/open; source msha-controller-operator-history