# Relationship history for MSHA mine 4608287

Current hierarchy: **David L  Huffman → D M D Mining Inc → Peerless #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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Randy W  Burke → Peerless #1; 1990-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** K & P Mining Inc → Peerless #1; 1993-03-01 to 1994-04-07; source msha-controller-operator-history
- **controller_controls_mine:** Michael P  Perilli → Peerless #1; 1993-03-01 to 1994-04-07; source msha-controller-operator-history
- **controller_controls_operator:** Michael P  Perilli → K & P Mining Inc; 1993-03-01 to 1994-04-07; source msha-controller-operator-history
- **operator_operates_mine:** Calvin Coal Company Inc → Peerless #1; 1994-04-08 to 1994-12-04; source msha-controller-operator-history
- **controller_controls_mine:** Richard Wayne  Thomas → Peerless #1; 1994-04-08 to 1995-11-30; source msha-controller-operator-history
- **controller_controls_operator:** Richard Wayne  Thomas → Calvin Coal Company Inc; 1994-04-08 to 1994-12-04; source msha-controller-operator-history
- **operator_operates_mine:** Fern Cove Inc → Peerless #1; 1994-12-05 to 1996-02-13; source msha-controller-operator-history
- **controller_controls_operator:** Randy W  Burke → Fern Cove Inc; 1994-12-05 to 1996-02-13; source msha-controller-operator-history
- **operator_operates_mine:** Missouri Creek Coal Company → Peerless #1; 1996-02-14 to 1999-04-20; source msha-controller-operator-history
- **controller_controls_mine:** Randy P  Key → Peerless #1; 1996-02-14 to 1999-04-20; source msha-controller-operator-history
- **controller_controls_operator:** Randy P  Key → Missouri Creek Coal Company; 1996-02-14 to 1999-04-20; source msha-controller-operator-history
- **operator_operates_mine:** D M D Mining Inc → Peerless #1; 1999-04-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** David L  Huffman → Peerless #1; 1999-04-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David L  Huffman → D M D Mining Inc; 1999-04-21 to current/open; source msha-controller-operator-history