WELL · 42-391-00986 · DISTRICT 2
Oconnor Thos. #4
Refugio County · Greta (4400) field · Vertical
Oconnor Thos. #4 (API 42-391-00986) is a disposal or injection well in Refugio County operated by Acock/Anaqua Operating CO. LP under an active UIC permit.
The RRC has issued 2 drilling permits between 1993 and 2010, permitted to 4,420 ft.
It was permitted by Cambrian Management, Ltd. and has since transferred to Acock/Anaqua Operating CO. LP on the wellbore schedule.
Completion filings report 2 formation tops, including Greta, Catahoula.
Its 3 leases have reported 84.4K barrels of oil and 832K mcf of gas since January 1993, last reporting in July 2026. The leases carry 6 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit.
Operator of record
Permitted by Cambrian Management, Ltd.; 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 | Cambrian Management, Ltd.through Oct 2010 |
| Latest permit | Cambrian Management, Ltd.Aug 2, 2010 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,420
- total depth, ft
- 2
- permits on file
- Aug 2, 2010
- last permit issued
- —
- completed
- 84.4K
- cumulative oil, bbl
- 832K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- Shut in
- —
- Plugged
- —
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 3 leases this well is completed on; they carry 6 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| O'Connor, Tom G-2-277046 | Greta (O-4) | Dorchester Operating Company LLC | 1 | 0 | 0 | Aug 2013 – Jul 2026 |
| Oconnor, Thos. O-2-4000 | Greta (4400) | Acock/Anaqua Operating Co., LP | 4 | 84.4K | 135K | Jan 1993 – Jul 2014 |
| O'Connor, Tom G-2-147792 | Greta (O-6) | Acock/Anaqua Operating Co., LP | 1 | 0 | 697K | Dec 1993 – Aug 2013 |
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.
- 1Dewbre Petroleum CorporationJan 1993 → Oct 2002
- 2Primrose Operating CompanyNov 2002 → Mar 2007
- 3Cambrian Management LtdApr 2007 → Sep 2007
- 4Cambrian Management, Ltd.Oct 2007 → Oct 2010
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 699592-99 | Recompletion | Cambrian Management, Ltd. | Jul 26, 2010 | Aug 2, 2010 | Aug 4, 2010 | 4,420 |
| 418224-99 | Recompletion | Dewbre Petroleum Corporation | Nov 15, 1993 | Nov 17, 1993 | Dec 6, 1993 | 4,420 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-147792 | — | — | — | — |
| — | — G-2-277046 | — | — | — | — |
| — | — O-2-4000 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 58 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,262 | 3,266 | Perforated |
| 3,265 | 3,315 | Perforated |
| — | 4,364 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 338 | 17.5 | 150 S |
| 9.625 | 1,333 | 12.25 | 350 S |
| 5.5 | 4,420 | 8.75 | 450 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 | Jun 30, 2015 | Dec 12, 2014 | — |
| 00 | Apr 7, 1994 | Dec 21, 1993 | Yes |
| 00 | Jan 31, 1994 | — | — |
| 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 42-391-00986 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-00986 → 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
- 332K
- bbl, all reported
- Nov 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000101950 | H-1 Injection | Active | 10,000 | 1,432 | 2,865–4,200 |
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/39100986, documented in the API reference.