WELL · 42-391-00912 · DISTRICT 2
Obrien J. M. -B- #4
Refugio County · Greta (4400) field · Vertical
Obrien J. M. -B- #4 (API 42-391-00912) is a plugged well in Refugio County, plugged December 15, 2015, last operated by Acock/Anaqua Operating CO. LP.
The RRC has issued 2 drilling permits between 1993 and 1994, permitted to 4,363 ft.
It was permitted by Chilton Energy and has since transferred to Acock/Anaqua Operating CO. LP on the wellbore schedule.
Completion filings report one formation top, including Greta.
Operator of record
Permitted by Chilton Energy; the EWA schedule now lists a different operator.
Corpus Christ, TX · P-5 Y, filed Jan 4, 2026 · 288 permits on file · (361) 876-5691
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Acock/Anaqua Operating Co. LP |
| Production reports | Chilton Energythrough Jan 1994 |
| Latest permit | Chilton EnergyDec 21, 1994 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,363
- total depth, ft
- 2
- permits on file
- Dec 21, 1994
- last permit issued
- Nov 18, 1994
- completed
- 0
- cumulative oil, bbl
- 860
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2020
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Nov 18, 1994
- Shut in
- —
- Plugged
- Dec 15, 2015
Surface location
No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Obrien, J. M., -B- O-2-3987 | Greta (4400) | Acock/Anaqua Operating Co., LP | 4 | 0 | 0 | Jan 1993 – Jul 2020 |
| O'Brien, J.M. B G-2-147379 | Greta (3870, Stray) | Chilton Energy | 1 | 0 | 860 | Oct 1993 – Nov 1994 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Chilton EnergyOct 1993 → Jan 1994
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 431066-99 | Recompletion | Chilton Energy | Dec 16, 1994 | Dec 21, 1994 | Nov 10, 1994 | 4,363 |
| 418028-99 | Recompletion | Chilton Energy | Nov 8, 1993 | Nov 12, 1993 | Oct 12, 1993 | 4,290 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-147379 | — | — | — | — |
| — | — O-2-3987 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,705 | 3,706 | Perforated |
| 4,357 | 4,359 | Perforated |
| — | 4,387 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,326 | — | — |
| 7 | 4,363 | — | 600 S |
Completion filings
W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | May 4, 1995 | Dec 5, 1994 | — |
| 00 | Feb 11, 1994 | Nov 22, 1993 | Yes |
| 00 | Dec 13, 1993 | — | — |
| 00 | Jan 12, 1984 | — | — |
The source documents
Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.
- Wellbore filings for 42-391-00912 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-00912 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 36.2K
- bbl, all reported
- Oct 2015
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000081423 | H-1 Injection | Plugged Dec 28, 2015 | 7,500 | 150 | 4,250–4,365 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 0
About this data
Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.
New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease
Developers: this page as JSON is GET /v1/data/wells/39100912, documented in the API reference.