# Relationship history for MSHA mine 0103130

Current hierarchy: **AFTA, LLC; Steve  Shaw → Couch Aggregates LLC → B & R Sand & Gravel**

- 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:** B & R Materials Wrecker & Recovery Company Inc → B & R Sand & Gravel; 1998-07-01 to 2002-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Billy W  Raybon → B & R Sand & Gravel; 1998-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Billy W  Raybon → B & R Materials Wrecker & Recovery Company Inc; 1998-07-01 to 2002-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Ready Mix USA Inc → B & R Sand & Gravel; 2000-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Couch Ready Mix USA Aggregate Div LLC → B & R Sand & Gravel; 2002-04-01 to 2011-12-30; source msha-controller-operator-history
- **controller_controls_operator:** Ready Mix USA Inc → Couch Ready Mix USA Aggregate Div LLC; 2002-04-01 to 2011-12-30; source msha-controller-operator-history
- **operator_operates_mine:** Ready Mix USA,  LLC → B & R Sand & Gravel; 2011-12-31 to 2012-06-29; source msha-controller-operator-history
- **controller_controls_mine:** Cemex S A → B & R Sand & Gravel; 2011-12-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cemex S A → Ready Mix USA,  LLC; 2011-12-31 to 2012-06-29; source msha-controller-operator-history
- **operator_operates_mine:** Couch Aggregates LLC → B & R Sand & Gravel; 2012-06-30 to 2017-01-30; source msha-controller-operator-history
- **controller_controls_mine:** Steve  Shaw et al → B & R Sand & Gravel; 2012-06-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steve  Shaw et al → Couch Aggregates LLC; 2012-06-30 to 2017-01-30; source msha-controller-operator-history
- **operator_operates_mine:** Couch Aggregates LLC → B & R Sand & Gravel; 2017-01-31 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Dunn Investment Company et al → B & R Sand & Gravel; 2017-01-31 to 2020-10-15; source msha-controller-operator-history
- **controller_controls_operator:** Dunn Investment Company et al → Couch Aggregates LLC; 2017-01-31 to 2020-10-15; source msha-controller-operator-history
- **controller_controls_operator:** Aggregates Holding LLC et al → Couch Aggregates LLC; 2017-01-31 to 2020-10-15; source msha-controller-operator-history
- **controller_controls_mine:** Green Rock Mining LLC → B & R Sand & Gravel; 2020-10-16 to 2024-07-11; source msha-controller-operator-history
- **controller_controls_operator:** Green Rock Mining LLC → Couch Aggregates LLC; 2020-10-16 to 2024-07-11; source msha-controller-operator-history
- **controller_controls_mine:** Steve  Shaw et al → B & R Sand & Gravel; 2024-07-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steve  Shaw et al → Couch Aggregates LLC; 2024-07-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** AFTA, LLC et al → Couch Aggregates LLC; 2024-07-12 to current/open; source msha-controller-operator-history