# Relationship history for MSHA mine 1513193

Current hierarchy: **Randall K Taylor; Ryan  Johns; Todd  Case → NorthStar Operating Company, LLC → Phelps Coal Tipple (T-2)**

- 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:** ITT Corporation → Phelps Coal Tipple (T-2); 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Kentucky Carbon Corp → Phelps Coal Tipple (T-2); 1981-11-01 to 1994-01-06; source msha-controller-operator-history
- **controller_controls_operator:** ITT Corporation → Kentucky Carbon Corp; 1981-11-01 to 1994-01-06; source msha-controller-operator-history
- **controller_controls_mine:** John M  Potter et al → Phelps Coal Tipple (T-2); 1987-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Phelps Processing Inc → Phelps Coal Tipple (T-2); 1994-01-07 to 1997-08-14; source msha-controller-operator-history
- **controller_controls_mine:** Edward (Scotty)  Potter → Phelps Coal Tipple (T-2); 1994-01-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Edward (Scotty)  Potter → Phelps Processing Inc; 1994-01-07 to 1997-08-14; source msha-controller-operator-history
- **operator_operates_mine:** Sunny Ridge Mining Company Inc → Phelps Coal Tipple (T-2); 1997-08-15 to 1999-06-07; source msha-controller-operator-history
- **controller_controls_operator:** John M  Potter et al → Sunny Ridge Mining Company Inc; 1997-08-15 to 1999-06-07; source msha-controller-operator-history
- **controller_controls_operator:** Thomas A  Potter et al → Sunny Ridge Mining Company Inc; 1997-08-15 to 1999-06-07; source msha-controller-operator-history
- **operator_operates_mine:** Sunny Ridge Mining Co., Inc. → Phelps Coal Tipple (T-2); 1999-06-08 to 2004-10-26; source msha-controller-operator-history
- **controller_controls_mine:** Horizon Natural Resources Incorporated → Phelps Coal Tipple (T-2); 1999-06-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Horizon Natural Resources Incorporated → Sunny Ridge Mining Co., Inc.; 1999-06-08 to 2004-10-26; source msha-controller-operator-history
- **controller_controls_mine:** David  Wells → Phelps Coal Tipple (T-2); 2001-05-01 to 2008-09-11; source msha-controller-operator-history
- **operator_operates_mine:** ICG East Kentucky LLC → Phelps Coal Tipple (T-2); 2004-10-27 to 2009-05-07; source msha-controller-operator-history
- **controller_controls_mine:** International Coal Group Inc (ICG) → Phelps Coal Tipple (T-2); 2004-10-27 to 2011-06-14; source msha-controller-operator-history
- **controller_controls_operator:** International Coal Group Inc (ICG) → ICG East Kentucky LLC; 2004-10-27 to 2009-05-07; source msha-controller-operator-history
- **controller_controls_mine:** Lipari Energy → Phelps Coal Tipple (T-2); 2008-09-12 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Blackjewel L.L.C. → Phelps Coal Tipple (T-2); 2009-05-08 to 2019-01-16; source msha-controller-operator-history
- **controller_controls_mine:** Jeffery A  Hoops → Phelps Coal Tipple (T-2); 2009-05-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffery A  Hoops → Blackjewel L.L.C.; 2009-05-08 to 2019-01-16; source msha-controller-operator-history
- **controller_controls_mine:** Arch Resources Inc → Phelps Coal Tipple (T-2); 2011-06-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Arch Resources Inc → ICG East Kentucky LLC; 2011-06-15 to 2009-05-07; source msha-controller-operator-history
- **operator_operates_mine:** B&W Resources Inc. → Phelps Coal Tipple (T-2); 2019-01-17 to 2021-05-21; source msha-controller-operator-history
- **controller_controls_operator:** Lipari Energy → B&W Resources Inc.; 2019-01-17 to 2021-05-21; source msha-controller-operator-history
- **controller_controls_operator:** David  Wells → B&W Resources Inc.; 2019-01-17 to 2008-09-11; source msha-controller-operator-history
- **controller_controls_mine:** Ryan  Johns → Phelps Coal Tipple (T-2); 2021-05-03 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Northstar Sustainable Energy LLC → Phelps Coal Tipple (T-2); 2021-05-22 to 2022-03-22; source msha-controller-operator-history
- **controller_controls_operator:** Ryan  Johns → Northstar Sustainable Energy LLC; 2021-05-22 to 2022-03-22; source msha-controller-operator-history
- **operator_operates_mine:** NorthStar Operating Company, LLC → Phelps Coal Tipple (T-2); 2022-03-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ryan  Johns et al → Phelps Coal Tipple (T-2); 2022-03-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ryan  Johns et al → NorthStar Operating Company, LLC; 2022-03-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Todd  Case et al → NorthStar Operating Company, LLC; 2022-03-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Randall K Taylor et al → NorthStar Operating Company, LLC; 2022-03-23 to current/open; source msha-controller-operator-history