# Relationship history for MSHA mine 0100759

Current hierarchy: **ACNR Holdings, Inc → Alabama Land Resources, LLC. → North River Mine**

- 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:** Chevron Corporation → North River Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Walter Energy Incorporated → North River Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** North River Energy Corp → North River Mine; 1950-01-01 to 1981-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Republic Steel Corp → North River Mine; 1950-01-01 to 1981-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Republic Steel Corp → North River Energy Corp; 1950-01-01 to 1981-06-30; source msha-controller-operator-history
- **operator_operates_mine:** North River Energy Company → North River Mine; 1981-07-01 to 1986-12-31; source msha-controller-operator-history
- **controller_controls_mine:** LTV Corp & Chevron Corp → North River Mine; 1981-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** LTV Corp & Chevron Corp → North River Energy Company; 1981-07-01 to 1986-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Chevron Mining Inc → North River Mine; 1987-01-01 to 2011-05-05; source msha-controller-operator-history
- **controller_controls_operator:** Chevron Corporation → Chevron Mining Inc; 1987-01-01 to 2011-05-05; source msha-controller-operator-history
- **operator_operates_mine:** Jim Walter Resources Inc → North River Mine; 2011-05-06 to 2016-02-12; source msha-controller-operator-history
- **controller_controls_operator:** Walter Energy Incorporated → Jim Walter Resources Inc; 2011-05-06 to 2016-02-12; source msha-controller-operator-history
- **operator_operates_mine:** Seminole Coal Resources LLC → North River Mine; 2016-02-13 to 2019-04-29; source msha-controller-operator-history
- **controller_controls_mine:** Virginia Conservation Legacy Fund (VCLF) → North River Mine; 2016-02-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Virginia Conservation Legacy Fund (VCLF) → Seminole Coal Resources LLC; 2016-02-13 to 2019-04-29; source msha-controller-operator-history
- **operator_operates_mine:** Murray Alabama Minerals, LLC → North River Mine; 2019-04-30 to 2020-09-16; source msha-controller-operator-history
- **controller_controls_mine:** Robert E  Murray → North River Mine; 2019-04-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert E  Murray → Murray Alabama Minerals, LLC; 2019-04-30 to 2020-09-16; source msha-controller-operator-history
- **operator_operates_mine:** Alabama Land Resources, LLC. → North River Mine; 2020-09-17 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** ACNR Holdings, Inc → North River Mine; 2020-09-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** ACNR Holdings, Inc → Alabama Land Resources, LLC.; 2020-09-17 to current/open; source msha-controller-operator-history