# Relationship history for MSHA mine 1508360

Current hierarchy: **American Resources Corporation → Knott County Coal, LLC → Wahoo Loadout**

- 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:** Tesoro Coal Company → Wahoo Loadout; 1975-01-01 to 1986-03-03; source msha-controller-operator-history
- **controller_controls_mine:** Tesoro Petroleum → Wahoo Loadout; 1975-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tesoro Petroleum → Tesoro Coal Company; 1975-01-01 to 1986-03-03; source msha-controller-operator-history
- **controller_controls_mine:** Sunoco, Inc. → Wahoo Loadout; 1983-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Whitaker Coal Corp → Wahoo Loadout; 1986-03-04 to 1994-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Sunoco, Inc. → Whitaker Coal Corp; 1986-03-04 to 1994-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Cockrell'S Fork Mining → Wahoo Loadout; 1994-07-01 to 1997-10-29; source msha-controller-operator-history
- **controller_controls_mine:** James J  Kocian et al → Wahoo Loadout; 1994-07-01 to 1997-10-29; source msha-controller-operator-history
- **controller_controls_operator:** James J  Kocian et al → Cockrell'S Fork Mining; 1994-07-01 to 1997-10-29; source msha-controller-operator-history
- **controller_controls_mine:** Horizon Natural Resources Incorporated → Wahoo Loadout; 1997-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Ikerd-Bandy Company Inc → Wahoo Loadout; 1997-10-30 to 2016-04-11; source msha-controller-operator-history
- **controller_controls_operator:** Horizon Natural Resources Incorporated → Ikerd-Bandy Company Inc; 1997-10-30 to 2016-04-11; source msha-controller-operator-history
- **controller_controls_mine:** International Coal Group Inc (ICG) → Wahoo Loadout; 2004-10-01 to 2011-06-14; source msha-controller-operator-history
- **controller_controls_mine:** Arch Resources Inc → Wahoo Loadout; 2011-06-15 to 2016-04-11; source msha-controller-operator-history
- **operator_operates_mine:** Knott County Coal, LLC → Wahoo Loadout; 2016-04-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** International Coal Group Inc (ICG) → Knott County Coal, LLC; 2016-04-12 to 2011-06-14; source msha-controller-operator-history
- **controller_controls_mine:** Quest Energy Corporation → Wahoo Loadout; 2016-04-12 to 2017-01-04; source msha-controller-operator-history
- **controller_controls_operator:** Quest Energy Corporation → Knott County Coal, LLC; 2016-04-12 to 2017-01-04; source msha-controller-operator-history
- **controller_controls_operator:** Arch Resources Inc → Knott County Coal, LLC; 2016-04-12 to 2016-04-11; source msha-controller-operator-history
- **controller_controls_mine:** American Resources Corporation → Wahoo Loadout; 2017-01-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** American Resources Corporation → Knott County Coal, LLC; 2017-01-05 to current/open; source msha-controller-operator-history