# Relationship history for MSHA mine 1800391

Current hierarchy: **Jason A  Kitzmiller → COBRA MINING, INC. → NO 1 STRIP**

- 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:** Buffalo Coal Company Inc → NO 1 STRIP; 1950-01-01 to 2001-03-29; source msha-controller-operator-history
- **controller_controls_mine:** Carl Del Signore Family Trust → NO 1 STRIP; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carl Del Signore Family Trust → Buffalo Coal Company Inc; 1950-01-01 to 2001-03-29; source msha-controller-operator-history
- **controller_controls_mine:** Alan D  Clark et al → NO 1 STRIP; 1994-06-29 to 2020-04-06; source msha-controller-operator-history
- **operator_operates_mine:** Buffalo Coal Company Inc → NO 1 STRIP; 2001-03-30 to 2007-11-29; source msha-controller-operator-history
- **controller_controls_mine:** Gerald W  Ramsburg  et al → NO 1 STRIP; 2001-03-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gerald W  Ramsburg  et al → Buffalo Coal Company Inc; 2001-03-30 to 2007-11-29; source msha-controller-operator-history
- **controller_controls_operator:** Charles R  Howdershelt  et al → Buffalo Coal Company Inc; 2001-03-30 to 2007-11-29; source msha-controller-operator-history
- **operator_operates_mine:** Beechwood Coal LLC → NO 1 STRIP; 2007-11-30 to 2021-07-13; source msha-controller-operator-history
- **controller_controls_mine:** Jody L  Ritchie → NO 1 STRIP; 2007-11-30 to 2022-03-15; source msha-controller-operator-history
- **controller_controls_operator:** Jody L  Ritchie → Beechwood Coal LLC; 2007-11-30 to 2021-07-13; source msha-controller-operator-history
- **controller_controls_mine:** Angela  Svonavec → NO 1 STRIP; 2008-09-03 to 2024-02-04; source msha-controller-operator-history
- **controller_controls_mine:** Victor E  Clark Jr → NO 1 STRIP; 2020-04-07 to 2023-11-14; source msha-controller-operator-history
- **operator_operates_mine:** Heritage Coal & Natural Resources, LLC → NO 1 STRIP; 2021-07-14 to 2025-02-03; source msha-controller-operator-history
- **controller_controls_operator:** Angela  Svonavec → Heritage Coal & Natural Resources, LLC; 2021-07-14 to 2024-02-04; source msha-controller-operator-history
- **controller_controls_mine:** Faith  Ritchie et al → NO 1 STRIP; 2022-03-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Faith  Ritchie et al → Beechwood Coal LLC; 2022-03-16 to 2021-07-13; source msha-controller-operator-history
- **controller_controls_operator:** Jody L Ritchie et al → Beechwood Coal LLC; 2022-03-16 to 2021-07-13; source msha-controller-operator-history
- **controller_controls_mine:** Jason A  Kitzmiller → NO 1 STRIP; 2023-11-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** KTRV LLC → NO 1 STRIP; 2024-02-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** KTRV LLC → Heritage Coal & Natural Resources, LLC; 2024-02-05 to 2025-02-03; source msha-controller-operator-history
- **operator_operates_mine:** Cobra Mining, Inc. → NO 1 STRIP; 2025-02-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jason A  Kitzmiller → Cobra Mining, Inc.; 2025-02-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Victor E  Clark Jr → Cobra Mining, Inc.; 2025-02-04 to 2023-11-14; source msha-controller-operator-history
- **controller_controls_operator:** Alan D  Clark et al → Cobra Mining, Inc.; 2025-02-04 to 2020-04-06; source msha-controller-operator-history