Y BAR MCM Well Details
Texas Wells · McMullen County · EAGLEVILLE (EAGLE FORD-1) field · CASTLEROCK EF OPERATING LLC
API No.
Latest Permit
Spud Date
Latest Completion
Y BAR MCM (API 31135428) is operated by CASTLEROCK EF OPERATING LLC and sits in the EAGLEVILLE (EAGLE FORD-1) oil & gas field of McMullen County, Texas.
FracFocus Records 1 hydraulic-fracturing job on file
Sourced from the FracFocus chemical disclosure registry (3,840,438 gallons of base fluid and 0 lbs of proppant across all reported jobs).
| Job dates | Operator | Lateral length (ft) | TVD (ft) | Water (gal) | Proppant (lbs) |
|---|---|---|---|---|---|
|
2013-09-28
→ 2013-10-02 |
Chesapeake Operating, Inc. | 5,088 | 9,738 | 3,840,438 | — |
Update History (3 records)
Each row below records one filing or status update. Only the fields that changed from the prior record are shown; unchanged values are inherited from the row below. The oldest row (first known record) shows the initial state.
Note on permit dates: for TX this column reflects the completion permit on file (W-2 / G-1), not the original drilling permit (W-1). A re-completion later in the well’s life creates a new permit_date entry, which is why a permit can date after the spud.
| Update Date | What changed | Operator | Field | Status / Type |
|---|---|---|---|---|
| 2026-07-24 | Administrative re-save | CASTLEROCK EF OPERATING LLC | EAGLEVILLE (EAGLE FORD-1) | Producing / Horizontal |
| 2026-07-10 |
New permit 2026-07-10 Spudded 2013-07-26 Operator → CASTLEROCK EF OPERATING LLC |
CASTLEROCK EF OPERATING LLC | EAGLEVILLE (EAGLE FORD-1) | Producing / Horizontal |
| 2014-02-21 |
Initial filing Permit: 2014-01-13 Completion: 2013-10-02 |
CHESAPEAKE OPERATING, INC. | EAGLEVILLE (EAGLE FORD-1) | Producing / Horizontal |