Castlerock Ef Operating LLC Permit History

TL;DR: Castlerock Ef Operating LLC has 22 oil and gas drilling permits on file; the most recent was filed 2025-02-05. This page lists permit dates, API numbers, counties, target formations, and lateral lengths. Data current as of 2026-05-04.

22 total permits on file, most recent 2025-02-05.

Permits Filed

Permit / Spud Date API Number County Well Name Formation Lateral Length (ft)
2025-02-05 4228337640 LA SALLE Y-BAR 140H Gulf Coast Basin (LA - TX) 12,650
2025-01-22 4231137494 MCMULLEN Y-BAR A 180H Gulf Coast Basin (LA - TX) 6,319
2024-12-23 4231137493 MCMULLEN Y-BAR 170H UNIT 170H Gulf Coast Basin (LA - TX) 12,411
2024-12-23 4231137500 MCMULLEN Y-BAR 160H UNIT 160H Gulf Coast Basin (LA - TX) 12,403
2024-09-25 4231137499 MCMULLEN Y-BAR 150H Gulf Coast Basin (LA - TX) 12,364
2024-03-20 4228337639 LA SALLE Y-BAR 130H Gulf Coast Basin (LA - TX) 12,871
2024-03-20 4228337641 LA SALLE Y-BAR 150H Gulf Coast Basin (LA - TX)
2024-03-20 4228337642 LA SALLE Y-BAR 160H Gulf Coast Basin (LA - TX)
2024-03-20 4228337638 LA SALLE Y-BAR 120H Gulf Coast Basin (LA - TX) 12,972
2024-03-20 4228337637 LA SALLE Y-BAR 110H Gulf Coast Basin (LA - TX) 13,082
2023-09-07 4231136018 MCMULLEN Y-BAR EAST UNIT A 1H Austin Chalk 4,889
2023-09-07 4231136019 MCMULLEN Y-BAR EAST 1H Austin Chalk 5,312
2023-09-01 4231137412 MCMULLEN CRX YBAR 9H Gulf Coast Basin (LA - TX) 9,831
2023-09-01 4231137413 MCMULLEN CRX YBAR E 10H Gulf Coast Basin (LA - TX) 9,914
2023-08-30 4231137411 MCMULLEN CRX YBAR 8H Gulf Coast Basin (LA - TX) 9,791
2023-06-02 4228337310 LA SALLE CRX YBAR A 4H Gulf Coast Basin (LA - TX) 13,496
2023-06-02 4228337313 LA SALLE CRX YBAR D 7H Gulf Coast Basin (LA - TX) 12,710
2023-06-02 4228337312 LA SALLE CRX YBAR C 6H Gulf Coast Basin (LA - TX) 13,362
2023-06-02 4228337311 LA SALLE CRX YBAR B 5H Gulf Coast Basin (LA - TX) 13,411
2023-02-24 4231137217 MCMULLEN CRX YBAR 2H Gulf Coast Basin (LA - TX) 9,711
2023-02-23 4231137216 MCMULLEN CRX YBAR 1H Gulf Coast Basin (LA - TX) 9,935
2023-02-23 4231137218 MCMULLEN CRX YBAR 3H Gulf Coast Basin (LA - TX) 9,718

Key Takeaways